• Fully compatible with all 8162x Optical Heads
• Fits in all 8163/8164/8166-series
• 2-channel option

The dual interface module is used to connect optical heads (Keysight 8162x) to the mainframes 8163A/B, 8164A/B or 8166A/B

Following optical heads are used with these interfaces:

• 81620B Si, +10dBm to -90dBm
• 81623B Ge, +10dBm to -80dBm
• 81624B 5mm InGaAs, +10dBm to -90dBm
• 81626B InGaAs, +27 dBm to - 70 dBm
• 81628B InGaAs, +40 dBm to - 60 dBm

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• Keysight 81619A Data sheet
• Keysight 81619A User Manual

The new 81620C optical power head provides a 5 mm detector area and allows flexible placement of the remote optical power meter, which is then connected to the N7749C. The 81620C accepts parallel beams with up to 4 mm diameter, standard SM fiber and MM fiber with max. 100 μm core diameter, NA ≤ 0.3. A wide choice of adapters allows input from popular fiber connector types, bare fibers or open beams. The magnetic D-shaped adapters allow rapid removal and replacement without twisting attached fibers.

N7749C interface for two or four optical power heads

• Controls the remote heads
• Sample averaging times ranging from 100 µs to 10 s for all heads
• Readout over LAN and USB interfaces with built-in web-browser GUI
• SCPI command set common to Keysight optical power meters
• Power values logged with dual-1M sample buffers for each head, to sample continuously with internal or external triggering
• Uninterrupted simultaneous measurement and readout minimize overhead time for repetitive measurements
• Family-wide, common trigger concept

Analog output port perfect for automated alignment

• Direct feedback for optimization processes like fiber alignment with analog voltage outputs, at the remote head itself and from the N7749C front panel
• Either linear proportional to the optical signal power or logarithmic over decades of power levels.

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• Keysight 81620C Data sheet
• Keysight 81620C User Manual

The new 81623C optical power head provides a 5 mm detector area and allows flexible placement of the remote optical power meter, which is then connected to the N7749C. The 81623C accepts parallel beams with up to 4 mm diameter, standard SM fiber and MM fiber with max. 100 μm core diameter, NA ≤ 0.3. A wide choice of adapters allows input from popular fiber connector types, bare fibers or open beams. The magnetic D-shaped adapters allow rapid removal and replacement without twisting attached fibers.

N7749C interface for two or four optical power heads

• Controls the remote heads
• Sample averaging times ranging from 100 µs to 10 s for all heads
• Readout over LAN and USB interfaces with built-in web-browser GUI
• SCPI command set common to Keysight optical power meters
• Power values logged with dual-1M sample buffers for each head, to sample continuously with internal or external triggering
• Uninterrupted simultaneous measurement and readout minimize overhead time for repetitive measurements
• Family-wide, common trigger concept.

Analog output port perfect for automated alignment

• Direct feedback for optimization processes like fiber alignment with analog voltage outputs, at the remote head itself and from the N7749C front panel
• Either linear proportional to the optical signal power or logarithmic over decades of power levels.

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• Keysight 81623C Data sheet
• Keysight 81623C User Manual

The new 81624C optical power head provides a 5 mm detector area and allows flexible placement of the remote optical power meter, which is then connected to the N7749C. The 81624C accepts parallel beams with up to 4 mm diameter, standard SM fiber and MM fiber with max. 100 μm core diameter, NA ≤ 0.3. A wide choice of adapters allows input from popular fiber connector types, bare fibers or open beams. The magnetic D-shaped adapters allow rapid removal and replacement without twisting attached fibers.

N7749C interface for two or four optical power heads

• Controls the remote heads
• Sample averaging times ranging from 100 µs to 10 s for all heads
• Readout over LAN and USB interfaces with built-in web-browser GUI
• SCPI command set common to Keysight optical power meters
• Power values logged with dual-1M sample buffers for each head, to sample continuously with internal or external triggering
• Uninterrupted simultaneous measurement and readout minimize overhead time for repetitive measurements
• Family-wide, common trigger concept

Analog output port perfect for automated alignment

• Direct feedback for optimization processes like fiber alignment with analog voltage outputs, at the remote head itself and from the N7749C front panel
• Either linear proportional to the optical signal power or logarithmic over decades of power levels.

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• Keysight 81624C Data sheet
• Keysight 81624C User Manual

The new 81626C high-power optical head provides a 5 mm detector area and allows flexible placement of the remote optical power meter, which is then connected to the N7749C. The 81626C accepts parallel beams with up to 4 mm diameter, standard SM fiber and MM fiber with max. 100 μm core diameter, NA ≤ 0.3. A wide choice of adapters allows input from popular fiber connector types, bare fibers or open beams. The magnetic D-shaped adapters allow rapid removal and replacement without twisting attached fibers.

N7749C interface for two or four optical power heads

• Controls the remote heads
• Sample averaging times ranging from 100 µs to 10 s for all heads
• Readout over LAN and USB interfaces with built-in web-browser GUI
• SCPI command set common to Keysight optical power meters
• Power values logged with dual-1M sample buffers for each head, to sample continuously with internal or external triggering
• Uninterrupted simultaneous measurement and readout minimize overhead time for repetitive measurements
• Family-wide, common trigger concept

Analog output port perfect for automated alignment

• Direct feedback for optimization processes like fiber alignment with analog voltage outputs, at the remote head itself and from the N7749C front panel
• Either linear proportional to the optical signal power or logarithmic over decades of power levels.

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• Keysight 81626C Data sheet
• Keysight 81626C User Manual

• Polarization dependence of <±0.015 dB
• Power uncertainty of ±3%
• Power range from +10 to -80dBm
• Wavelength range 800 nm – 1650 nm
• Dual InGaAs detector for low noise and low wavelength dependence

Keysight's 81635A dual optical power sensor is the right choice for accurate power measurements on fiberoptic devices. The modular dual sensor fits into all Keysight 816x Lightwave mainframes and can be used singly or in multiples for parallel measurements of multichannel devices. The output fiber is easily attached using Keysight's flexible connector adapters or bare-fiber adapter.

The module can run measurement applications like data logging, stability and recording minimum and maximum values over time. Triggered synchronization with tunable laser modules enables powerful spectral measurements, with the advantages of higher resolution, better polarization dependence and cost-and-time-efficient multichannel expandability. The module logs up to 20,000 samples with averaging time as low as 100µs.

Features:

Comprehensive sampling and triggering concept (hardware trigger lines, filtering, event trigger, hardware timer, analog output) for easy integration into a wide range of control schemes.

Suitable for all communication wavelength bands, the module accepts standard single-mode and multimode fibers up to 62.5 µm core size.

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• Keysight 81635A Data sheet
• Keysight 81635A Configuration Guide
• Keysight 81635A User Manual

• 25 µs minimum averaging time and 17 kHz analog bandwidth
• Dynamic range > 55dB in manual range mode
• Power uncertainty of ±3%
• Low polarization dependence of <±0.015dB
• 100,000 measurement samples

Keysight's 81636B general purpose optical power sensor is the right choice for accurate power measurements on fiberoptic devices. The modular sensor fits into all Keysight 816x Lightwave mainframes and can be used singly or in multiples for parallel measurements of multichannel devices. The output fiber is easily attached using Keysight's flexible connector adapters or bare-fiber adapter.

The module can run measurement applications like data logging, stability and recording minimum and maximum values over time. Triggered synchronization with tunable laser modules enables powerful spectral measurements, with the advantages of higher resolution, better polarization dependence and cost-and-time-efficient multichannel expandability. The module logs up to 100,000 samples with averaging time as low as 25µs. The analog bandwidth of 17kHz supports fast logging without distortion and the analog output is available for real-time oscilloscope measurements.

Benefits:

• Up to 100,000 samples can be taken with short averaging time and high bandwidth to provide undistorted high-resolution spectra at high sweep speeds, even over narrow filters.
• The traceability to NIST and PTB gives you the certainty of measurements referenced to internationally accepted standards.
• The instrument's comprehensive sampling and triggering concept (hardware trigger lines, filtering, event trigger, hardware timer, analog output) provides the flexibility to adapt the power meter to changing test needs and for easy integration into a wide range of applications.

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• Keysight 81636B Data sheet
• Keysight 81636B Configuration Guide
• Keysight 81636B User Manual

The Keysight Technologies 8163B lightwave multimeter is a basic measurement tool that provides flexible modular configuration and easy control of test solutions. This mainframe is used for optical component test.

• Provides high resolution color display
• Consists of two slots for hosting power modules, return loss modules, compact tunable lasers, or fixed laser sources
• Includes built-in applications — return loss, passive component test, stability, and logging
• Perform remote control of extended system trigger and clocking system with both LAN and GPIB interface

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• Keysight 8163B Data sheet
• Keysight 8163B Configuration Guide
• Keysight 8163B User Manual

• High accuracy and repeatability of output polarization state: ±0.09° on Poincaré Sphere
• Low wavelength dependence of output polarization state: ±0.1°/nm on Poincaré Sphere
• High polarization extinction ratio >45 dB (1530 nm – 1560nm)
• Built-in auto-scanning for fast characterization across polarization states
• Accepts high input power levels and polarized or unpolarized light sources

The 8169A Polarization Controller, with single-mode fiber input and output, is used to change the light from any polarized or unpolarized light source into any well-defined state of polarization. The design based on bulk-optic zero-order waveplates and a high-performance linear polarizer at the input provides optimum determination and repeatability of polarization states over a wide wavelength range. The 8169A is especially well suited for use together with a tunable laser to make swept-wavelength measurements of the polarization dependence of fiberoptic devices, by setting a set of relatively orthogonal polarization states for Mueller Matrix analysis. These measurements are supported by a Plug&Play driver and coordinated operation of the 8169A with a Keysight tunable laser and power meters can be enhanced with the Photonic Foundations Library software package. The fundamental basis of this flexible instrument also supports many general applications requiring polarization control and analysis.

Benefits:

• Built-in algorithms for controlled polarization scanning
• Flexible attachment with interchangeable Keysight connector adapters
• Highly accurate and repeatable output polarization reduces test setup and calibration time and minimizes test uncertainties
• The low wavelength dependent movement of the output polarization state empowers high speed, swept-wavelength measurements, and enables broadband applications.

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• Keysight 8169A Data sheet
• Keysight 8169A User Manual

• Enhanced, stabilized HeNe reference laser with double lifetime
• Five-year warranty included, covering entire instrument, all parts
• Absolute wavelength accuracy: ±0.2 ppm
• Differential wavelength accuracy: ± 0.15 ppm
• Wavelength scan in less than 0.5 sec
• NEW: Wavelength scan in less than 0.3 sec with fast update option

With an absolute wavelength accuracy of ±0.2 ppm and ±0.15 ppm differential accuracy, the new Keysight 86122C Multi-Wavelength Meter belongs in the top class of wavelength meters available for optical communication testing. Its wavelength range of 1270 to 1650 nm covers all fiber-to-the-home, metro and long-haul transmission systems. The instrument can measure the spectra of up to 1,000 laser lines at once, which is more than sufficient for fully populated dense-wavelength-division multiplexed systems (DWDM).

The new 86122C is an updated version of the proven 86122A and 86122B. The product is used to efficiently develop, manufacture and verify tunable transmitter lasers and optical subsystems for today's and tomorrow’s high-speed applications. For its reliability and durability, this product family is equally popular on the manufacturing floor and engineers’ benches, and it is robust enough to be installed on ships. Statistical data from a large share of the industry’s installed wavelength meters enables us to continuously fine-tune our instruments for lower cost of ownership and longer usage, particularly in 24/7 operated testing: we have extended the recommended recalibration period of the 86122C to two years, and doubled the expected lifetime of the built-in reference laser. The new Multi-Wavelength Meter comes with a five-year warranty that covers not only the reference laser, but all opto-mechanical and electronic parts. To ensure continued supportability, the 86122C is based on Windows ® 7. Front and rear panel accessible USB ports host USB flash drives for data exchange, mouse and keyboard for comfortable operation.

New Fast Update Option for the 86122C Multi-Wavelength Meter

Our flagship model, the Keysight 86122C, is now available with a faster update rate. The new option 86122C-110 accelerates the update rate from 2 per second to 3 per second. The measurement cycle time is reduced from 0.5 seconds to 0.3 seconds. For compatibility, the previous update rate is still available under option 86122C-100.

Benefits:

• The 86122C has been optimized for lower cost of ownership and less downtime through the combination of product enhancements, 2-year recommended re-calibration period and 5-year standard warranty, all at no extra cost.
• Just 15 minutes of warm-up time are sufficient for specified accuracy.
• Angled-connector option is available to avoid influencing non-isolated sources.
• Its fast wavelength scan covering the full 1270 – 1650 nm range allows you to efficiently characterize optical devices, such as tunable transmitters, versus wavelength.
• The wavelength accuracy gives you the certainty of accurate channel characterization in dense WDM systems, to detect channel's wavelength shift and crosstalk between adjacent channels.
• High input power level of +10 dBm (+18 dBm Safe input level) enables you to test transmitters without additional connections and instruments (e.g. attenuator).
• The built-in applications for optical signal-to-noise ratio, wavelength and power drift allow smart stand-alone test stations, which reduces footprint requirements and costly test procedure development.
• The built-in HeNe reference laser guarantees an accurate absolute wavelength measurement real-time determined against the standard anytime and ensures accurate and reproducible experimental results.

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• Keysight 86122C-110 Data sheet
• Keysight 86122C-110 User Manual

N1092B Dual Optical Channel Oscilloscope

Built on Keysight's digital communication analyzer (DCA) technology, the DCA-M Series of sampling oscilloscopes the industry standard for verifying optical transmitter compliance. With single to quad optical channels in a compact form factor, the DCA-M is ideal for both manufacturing and R and D applications. Analyze both multi-mode and single-mode signals with the low-noise, high-sensitivity calibrated reference receivers. The variety of models along with the supporting software and compliance applications ensure you can measure with high precision, whether you analyze electrical or optical devices.

• Highest sensitivity with <5 uW noise
• Fastest throughput with high 250 kHz sample rate
• Accurate high data rate analysis with <200 fs jitter
• Reference Receiver: 20.6 to 28 GBd (NRZ and PAM4), 53 GBd (PAM4)
• Clock Recovery: 24 to 29 GBd and 48 to 58 GBd
• Smaller footprint due to compact design
• Unfiltered bandwidth >40 GHz (option 40A)
• [NEW] Integrated Clock Recovery available (option CDR)

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• Keysight N1092B-40A Data sheet
• Keysight N1092B-40A Configuration Guide
• Keysight N1092B-40A User Manual

N1092B Dual Optical Channel Oscilloscope

Built on Keysight's digital communication analyzer (DCA) technology, the DCA-M Series of sampling oscilloscopes the industry standard for verifying optical transmitter compliance. With single to quad optical channels in a compact form factor, the DCA-M is ideal for both manufacturing and R and D applications. Analyze both multi-mode and single-mode signals with the low-noise, high-sensitivity calibrated reference receivers. The variety of models along with the supporting software and compliance applications ensure you can measure with high precision, whether you analyze electrical or optical devices.

• Highest sensitivity with <5 uW noise
• Fastest throughput with high 250 kHz sample rate
• Accurate high data rate analysis with <200 fs jitter
• Reference Receiver: 20.6 to 28 GBd (NRZ and PAM4), 53 GBd (PAM4)
• Clock Recovery: 24 to 29 GBd and 48 to 58 GBd
• Smaller footprint due to compact design
• Unfiltered bandwidth >40 GHz (option 40A)
• [NEW] Integrated Clock Recovery available (option CDR)

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• Keysight N1092B-40A Data sheet
• Keysight N1092B-40A Configuration Guide
• Keysight N1092B-40A User Manual

• 4x 33 GHz system bandwidth, 4 x 40 GHz optical receiver bandwidth
• Specified typical system noise floor 1.8% rms EVM
• 66 Gbaud symbol rate
• 264 Gbit/s for QPSK, 512 Gbit/s for QAM 16
• Analysis span 66 GHz
• Optical wavelength range 1528 nm to 1630 nm
• Absolute wavelength accuracy +/- 5 pm typical

The N4391A is a high end turn-key optical modulation analyzer for advanced research in single and multi-carrier 400 Gbit/s and 1Tbit/s complex modulated transmission systems. It is based on the latest Z-Series Keysight oscilloscopes, a 40 GHz dual polarization coherent receiver and optical modulation vector signal analysis software offering most flexible analysis tools and smart setup for easiest instrument setup.

Benefits

• Highest confidence in test results through full calibrated turn-key solution
• Widest range of modulation format offering
• Based on world class Z-Series 4 channel Keysight oscilloscope

Features

• Fully integrated in Vector Signal Analysis software with smart setup
• Analysis software also available as PC stand-alone version
• User configurable APSK and OFDM demodulator
• Modulation-format transparent polarization alignment
• Clearly structured measurement resultsaward_logo
• Optical characterization results for each polarization plane separately
• Optical summary results for complete signal
• BER and Q factor separated for each polarization plane and overall signal
• Freely configurable screen layout
• Internal PMF switch to select internal or external local oscillator laser for best long term test results
• Free selection and sequence of DSP algorithms
• Various CD and PMD compensation and measurement algorithms
• Integration of user DSP algorithm with the same freedom as Keysight algorithms

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• Keysight N4391A Data sheet
• Keysight N4391A User Manual

• Repeatability: ±0.01 dB, ±0.004 dB typical
• Switching time: < 20 ms
• Lifetime: > 1 billion cycles
• LAN, USB and GPIB interfaces
• 816x VXI Plug&Play driver support
• N77xx Viewer GUI

The N7731A is a dual 1x4 fiberoptic switch, available for single-mode or multimode fiber connections. These enhance accurate measurements and ease automation with excellent repeatability, fast switching time and flexible interfacing with LAN, USB and GPIB.

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• Keysight N7731A Data sheet
• Keysight N7731A User Manual

With the new N7742C, Keysight extends the functionality of the popular N774-C optical power meter family. The new instrument offers models for wider wavelength range, analog feedback, and finer granularity of port count, while keeping the speed and logging performance of the well-established N7744C and N7745C.

Optional extended wavelength range

In addition to the standard operating wavelength range of 1250 nm to 1650 nm (options #200, #400), this can be extended down to 800 nm with options #210 and #410.

• -80 dBm to +10 dBm power range

Analog output port perfect for automated alignment

The N7742C optical power meter provides an analog voltage output that can be used as feedback for automated alignment applications. The voltage on each channel’s analog output port is configurable to be linearly or logarithmically proportional to the optical power level. The new logarithmic mode is very helpful for tracking the signal level over a wide dynamic range, like during probe adjustment.

• Standard BNC connector with 0 to 2V output

Two and four port with user-exchangeable connector receptacles

N7742C is available with two (option #200, #210) or four power sensor channels (option #400, #410). The connector style can be configured individually for each port by choosing from N7742FI (FC), N7742KI (SC), N7742LI (LC) and N7742VI (ST) connector interfaces.

GUI available via LAN or USB, no software installation required

The graphical user interface opens after accessing the instrument from your web browser. If a LAN connection is not available, it is sufficient to connect the instrument via USB to a PC. The instrument shows up as a new drive with a shortcut. A click on that shortcut lets any modern browser open a connection to the instrument: the graphical user interface appears. It’s as simple as that!

• Comprehensive hardware and trigger concept along with large memory lets adapt the power meter to many test needs
• Instrument programming code is compatible to the Lightwave solution platform

High-speed measurement data acquisition for swept-wavelength and transient measurements

• Short minimum averaging time of 1 µs and up to 250 kHz bandwidth
• Data acquisition with up to 1 Million samples per second and per port
• Memory for 1 M samples/port plus 1 M/port buffer for continuous logging with up to 3x faster data transfer
• Frequency response matched to averaging time and stable dark-current zeroing provide high dynamic range without distorting filter shapes at high sweep speed

Members of a growing family

The N7742C benefits from the N77-C’s family-wide, common trigger concept, and a modern, browser-accessible user interface, that makes it convenient to configure the instrument’s functionality. High-speed measurement data acquisition, faster data interfaces, the use of dual-ported RAM for uninterrupted simultaneous measurement and readout, and fast power range switching help avoid unnecessary delays in the measurement process as well as in post-processing.

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• Keysight N7742C Data sheet
• Keysight N7742C User Manual

With the new N7743C, Keysight extends the functionality of the popular N774-C optical power meter family for higher power levels..The new instrument offers models for wider wavelength range, analog feedback, and finer granularity of port count, while keeping the speed and logging performance of the well-established N7744C and N7745C.

Optional extended wavelength range

In addition to the standard operating wavelength range of 1250 nm to 1650 nm (options #200, #400), this can be extended down to 800 nm with options #210 and #410.

• -70 dBm to +20 dBm power range

Analog output port perfect for automated alignment

The N7742C optical power meter provides an analog voltage output that can be used as feedback for automated alignment applications. The voltage on each channel’s analog output port is configurable to be linearly or logarithmically proportional to the optical power level. The new logarithmic mode is very helpful for tracking the signal level over a wide dynamic range, like during probe adjustment.

• Standard BNC connector with 0 to 2V output

Two and four port with user-exchangeable connector receptacles

The N7743C optical power meter provides an analog voltage output that can be used as feedback for automated alignment applications. The voltage on each channel’s analog output port is configurable to be linearly or logarithmically proportional to the optical power level. The new logarithmic mode is very helpful for tracking the signal level over a wide dynamic range, like during probe adjustment.

GUI available via LAN or USB, no software installation required

The graphical user interface opens after accessing the instrument from your web browser. If a LAN connection is not available, it is sufficient to connect the instrument via USB to a PC. The instrument shows up as a new drive with a shortcut. A click on that shortcut lets any modern browser open a connection to the instrument: the graphical user interface appears. It’s as simple as that!

• Comprehensive hardware and trigger concept along with large memory lets adapt the power meter to many test needs
• Instrument programming code is compatible to the Lightwave solution platform

High-speed measurement data acquisition for swept-wavelength and transient measurements

• Short minimum averaging time of 1 µs and up to 250 kHz bandwidth
• Data acquisition with up to 1 Million samples per second and per port
• Memory for 1 M samples/port plus 1 M/port buffer for continuous logging with up to 3x faster data transfer
• Frequency response matched to averaging time and stable dark-current zeroing provide high dynamic range without distorting filter shapes at high sweep speed

Members of a growing family

The N7742C benefits from the N77-C’s family-wide, common trigger concept, and a modern, browser-accessible user interface, that makes it convenient to configure the instrument’s functionality. High-speed measurement data acquisition, faster data interfaces, the use of dual-ported RAM for uninterrupted simultaneous measurement and readout, and fast power range switching help avoid unnecessary delays in the measurement process as well as in post-processing.

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• Keysight N7743C Data sheet
• Keysight N7743C User Manual

N7749C interface for two or four optical power heads

• Controls up to two or four remote heads
• Sample averaging times ranging from 100 µs to 10 s for all heads
• Readout over LAN and USB interfaces with built-in web-browser GUI
• SCPI command set common to Keysight optical power meters
• Power values logged with dual-1M sample buffers for each head, to sample continuously with internal or external triggering
• Uninterrupted simultaneous measurement and readout minimize overhead time for repetitive measurements
• Family-wide, common trigger concept

N7749C interface for two or four optical power heads

• Direct feedback for optimization processes like fiber alignment with analog voltage outputs, at the remote head itself and from the N7749C front panel
• Either linear proportional to the optical signal power or logarithmic over decades of power levels.

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• Keysight N7749C Data sheet
• Keysight N7749C User Manual

Measurement capability: attenuator

• Settling time: 20 ms attenuation, 100 ms power
• 0.1 to 1000 dB/s attenuation transition speed (selectable)
• +23 dBm input power
• ≤ 1.2 dB insertion loss

Measurement capability: power meter

• Wavelength range: 1260-1640 nm
• Power range: -80 to +10 dBm
• Polarization dependence: <0.01 dB

System capability

• Two attenuator channels and two power meters in one half-width rack unit
• Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
• Includes powerful and user-friendly GUI software
• Two instrument configurations can be stored and recalled

The Keysight N7752A combines an attenuator with 2 front-panel power meter channels, offering exceptional performance at a low price. The power meters permit measurements from any point in the measurements setup and assist in calibrating power offsets with respect to the attenuator output.

Extension of N77xx-series

The N7752A attenuator is an extension to Keysight's high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.

Features and Benefits

• Compact instrument combines and integrates multiple functions for setting attenuation and power levels and optical power measurement to reduce CAPEX and floor space.
• Fast and precise setting of optical power levels with settling times of 100 ms for improved test throughput.
• The power meters support convenient power offset calibration of the attenuators.
• Active power control to keep output power constant
• The multichannel attenuator sets and measures several ports at the same time and saves significant time characterizing multiport and multichannel components and network equipments.
• The instrument can be controlled via LAN and USB, as well as GPIB for compatibility with existing equipment.
• An easy-to-use and intuitive graphical user interface software speeds up the integration process.

Applications

• Optical transceiver testing
• Optical network integration testing

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• Keysight N7752A-021 Data sheet
• Keysight N7752A-021 User Manual

Measurement capability: attenuator

• Settling time: 20 ms attenuation, 100 ms power
• 0.1 to 1000 dB/s attenuation transition speed (selectable)
• +23 dBm input power
• ≤ 1.2 dB insertion loss

Measurement capability: power meter

• Wavelength range: 1260-1640 nm
• Power range: -80 to +10 dBm
• Polarization dependence: <0.01 dB

System capability

• Two attenuator channels and two power meters in one half-width rack unit
• Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
• Includes powerful and user-friendly GUI software
• Two instrument configurations can be stored and recalled

The Keysight N7752A combines an attenuator with 2 front-panel power meter channels, offering exceptional performance at a low price. The power meters permit measurements from any point in the measurements setup and assist in calibrating power offsets with respect to the attenuator output.

Extension of N77xx-series

The N7752A attenuator is an extension to Keysight's high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.

Features and Benefits

• Compact instrument combines and integrates multiple functions for setting attenuation and power levels and optical power measurement to reduce CAPEX and floor space.
• Fast and precise setting of optical power levels with settling times of 100 ms for improved test throughput.
• The power meters support convenient power offset calibration of the attenuators.
• Active power control to keep output power constant
• The multichannel attenuator sets and measures several ports at the same time and saves significant time characterizing multiport and multichannel components and network equipments.
• The instrument can be controlled via LAN and USB, as well as GPIB for compatibility with existing equipment.
• An easy-to-use and intuitive graphical user interface software speeds up the integration process.

Applications

• Optical transceiver testing
• Optical network integration testing

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• Keysight N7752A-022 Data sheet
• Keysight N7752A-022 User Manual

Measurement capability

• Settling time: 20 ms attenuation, 100ms power
• 0.1 to 1000 dB/s attenuation transition speed (selectable)
• +23 dBm input power
• ≤ 1.2 dB insertion loss

System capability

• Four attenuator channels in a one half-width rack unit
• Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
• Includes powerful and user-friendly GUI software
• Two instrument configurations can be stored and recalled

The Keysight N7764A variable optical attenuator offers exceptional performance at a low price.

Extension of N77xx-series

The N7764A attenuator is an extension to Keysight’s high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.

Features and Benefits

• Compact instrument combines and integrates multiple functions for setting attenuation and power levels and controlling optical power to reduce CAPEX and floor space.
• Fast and precise setting of optical power levels with settling times of 100 ms for improved test throughput.
• Active power control to keep output power constant
• The multichannel attenuator sets and controls several ports at the same time and saves significant time characterizing multiport and multichannel components and network equipment.
• The instrument can be controlled via LAN and USB, as well as GPIB for compatibility with existing equipment.
• An easy-to-use and intuitive graphical user interface speeds up the integration process.

Applications

• Optical transceiver testing
• Optical network integration testing

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• Keysight N7764A Data sheet
• Keysight N7764A User Manual

• Miniature bulk optics for best transfer of modal distribution
• Built-in power monitoring for accurate power setting and stabilizing
• Wavelength range: 800 – 1370 nm
• Attenuation range: 0 to 35 dB
• Relative power monitor uncertainty: ±0.1 dB + 300 pW
• Settling time: typ. 200 ms
• Transition speed: selectable from 0.1 to 80 and 1000 dB/s
• Optical path blocking: typ. >60 dB

Optical attenuator instruments are used to flexibly control optical signal power levels in test setups. A primary application is determining optical receiver sensitivity by measuring the BER vs. input signal power. The N7766A and N7768A provide 2 or 4 attenuator channels respectively for multimode fiber setups and are available with either 50 µm, 62.5 µm or 80 µm fiber ports. The output power is monitored, especially to allow accurate and stable power setting independent of the input power. Convenient offset parameters allow the set power to correspond to the signal after other optical components in the setup path.

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• Keysight N7768A-050 Data sheet
• Keysight N7768A-050 User Manual

• Miniature bulk optics for best transfer of modal distribution
• Built-in power monitoring for accurate power setting and stabilizing
• Wavelength range: 800 – 1370 nm
• Attenuation range: 0 to 35 dB
• Relative power monitor uncertainty: ±0.1 dB + 300 pW
• Settling time: typ. 200 ms
• Transition speed: selectable from 0.1 to 80 and 1000 dB/s
• Optical path blocking: typ. >60 dB

Optical attenuator instruments are used to flexibly control optical signal power levels in test setups. A primary application is determining optical receiver sensitivity by measuring the BER vs. input signal power. The N7766A and N7768A provide 2 or 4 attenuator channels respectively for multimode fiber setups and are available with either 50 µm, 62.5 µm or 80 µm fiber ports. The output power is monitored, especially to allow accurate and stable power setting independent of the input power. Convenient offset parameters allow the set power to correspond to the signal after other optical components in the setup path.

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• Keysight N7768A-062 Data sheet
• Keysight N7768A-062 User Manual

• Wavelength: 1240-1380 nm or 1340-1495 nm or 1450-1650 nm or 1490-1640 nm
• Sweep speeds: up to 200 nm/s, bidirectional
• Max. power: > +12 dBm peak (Options 114, 116, 216) or > +13 dBm peak (Option 113)
• Signal to SSE ratio: ≥ 80 dB/nm typical
• Absolute wavelength accuracy: ±1.5 pm typical (also during continuous sweeps)

The new Keysight N7776C top line tunable laser source is designed to reach best-in-class accuracy in static and swept operation for outstanding test efficiency. Two-way sweeps up to 200 nm/s speed with sub-picometer repeatability and without impacting the specified dynamic accuracy accelerate wavelength-dependent alignment processes and the automated calibration of wavelength-selective devices. Shorter time to testing and faster swept-wavelength tests help reduce test cost per device, improve test margins and lower the cost of ownership.

With more than +12 dBm output power at the product family’s lowest spontaneous emission level, the N7776C enables the validation of extremely deep filters. It also offers the best wavelength accuracy – enabled by its high-resolution wavelength reference unit that provides real-time tracking and control and includes a gas cell for excellent long-term stability and self-adjustment capability.

Like its predecessors 81600B and 81606A, the new N7776C tunable laser source is supported by the photonic application suite software for spectral measurements of insertion loss, polarization dependent loss and dispersion. In combination with the N774xC multiport power meters and the N7786C polarization synthesizer, the new lasers provide optimal swept-wavelength accuracy and excellent dynamic range for measuring both filter stop bands and pass bands.

All N777xC tunable lasers are based on a common cavity and laser module design and share a narrow linewidth, excellent long-term stability and low spontaneous emission level. They are software compatible with the 8160xA and 81600B lasers, the industry standards for more than a decade, but occupy 1 height unit less rack space. The remote user interface on the instrument is accessible with just a web browser, either via LAN or via USB connection. An optional touch-screen display provides local operator access and displays current operating parameters.

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• Keysight N7776C Data sheet
• Keysight N7776C User Manual

• Wavelength: 1240-1380 nm or 1340-1495 nm or 1450-1650 nm or 1490-1640 nm
• Tuning time: 300 ms for a 1 nm step
• Max. power: > +12 dBm peak typ. (Options 114, 116, 216) or > +13 dBm peak typ. (Option 113)
• Signal to SSE ratio: ≥ 75 dB/nm typical
• Absolute wavelength accuracy: ±10 pm typical

The new N7779C basic line tunable laser source, like the other new N777xC models, can step quickly to discrete wavelengths with a resolution of 0.1 pm and a typical wavelength repeatability of ±3 pm, making it ideal for cost-effective testing of broadband optical devices. With wavelength setting times like 300 ms, rapid stepped sweeps are possible. Like the other lasers in the N777xC family, it delivers more than +12 dBm peak output power with low spontaneous emission levels. At ±0.01 dB power stability over an hour, it can also serve as a static local oscillator with a wide tuning range for receiver testing or transmission experiments.

All N777xC tunable lasers are based on a common cavity and laser module design and share a narrow linewidth, excellent long-term stability and low spontaneous emission level. They are software compatible with the 8160xA and 81600B lasers, the industry standards for more than a decade, but occupy 1 height unit less rack space. The remote user interface on the instrument is accessible with just a web browser, either via LAN or via USB connection. An optional touch-screen display provides local operator access and displays current operating parameters.

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• Keysight N7779C Data sheet
• Keysight N7779C User Manual

• Wavelength: 1240-1380 nm or 1340-1495 nm or 1450-1650 nm or 1490-1640 nm
• Tuning time: 300 ms for a 1 nm step
• Max. power: > +12 dBm peak typ. (Options 114, 116, 216) or > +13 dBm peak typ. (Option 113)
• Signal to SSE ratio: ≥ 75 dB/nm typical
• Absolute wavelength accuracy: ±10 pm typical

The new N7779C basic line tunable laser source, like the other new N777xC models, can step quickly to discrete wavelengths with a resolution of 0.1 pm and a typical wavelength repeatability of ±3 pm, making it ideal for cost-effective testing of broadband optical devices. With wavelength setting times like 300 ms, rapid stepped sweeps are possible. Like the other lasers in the N777xC family, it delivers more than +12 dBm peak output power with low spontaneous emission levels. At ±0.01 dB power stability over an hour, it can also serve as a static local oscillator with a wide tuning range for receiver testing or transmission experiments.

All N777xC tunable lasers are based on a common cavity and laser module design and share a narrow linewidth, excellent long-term stability and low spontaneous emission level. They are software compatible with the 8160xA and 81600B lasers, the industry standards for more than a decade, but occupy 1 height unit less rack space. The remote user interface on the instrument is accessible with just a web browser, either via LAN or via USB connection. An optional touch-screen display provides local operator access and displays current operating parameters.

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• Keysight N7779C Data sheet
• Keysight N7779C User Manual

• Comprehensive Polarization Control and Management Capabilities
• Covers S-, C- and L-Band plus 1.3μm Window (O-Band)
• Up to 100K SOPs/s
• SOP Switching time less than 10us

The Keysight N7784B Polarization Controller contains a high-speed polarization controller plus microcontroller based driving circuitry. This unit can operate in various modes:

As Polarization Stabilizer it provides a stable output State of Polarization (SOP) even with fluctuations and drifts of the input SOP as occurring for example through temperature drift and mechanical settling processes. The stabilized output signal is guided in a Polarization Maintaining Fiber (PMF). Alternatively an external electrical feedback signal can be provided for stabilizing the SOP.

As Synchronous Scrambler the device switches the SOP of the output signal in a (pseudo) random way. Switching of the SOP occurs within few microseconds. The SOP is stable for a predefined time until it again switches to a new SOP. An electrical trigger input can be used to synchronize the scrambler with external events.

As SOP Switch the Keysight N7784B switches to a set of SOPs with high repeatability which allows customized implementations of the Mueller Matrix method for PDL characterization of components.

As traditional Scrambler the Keysight N7784B varies the output SOP smoothly in a random/pseudo random way.

The unit does not contain any moving parts and therefore is robust and withstands even rough environmental conditions. All abovementioned applications of the N7784B are supported by a PC software package.

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• Keysight N7784B Data sheet
• Keysight N7784B User Manual

• Comprehensive polarization stabilization/control
• Fast switching capability
• Enables single-sweep spectral PDL measurements with photonic application software suite
• 1240 nm to 1650 nm operating wavelength range
• Robust, no moving optical part

The Keysight Technologies N7786C contains a high-speed lithium-niobate based polarization controller and a polarization analyzer that monitors the output signal and provides feedback to the controller. This unit can operate in several modes:

• As a polarization stabilizer, it provides a stable output state of polarization (SOP) even with fluctuations and drifts of the input SOP. The stabilized output signal is guided in a standard single-mode fiber (SMF). The output SOP can be defined in the following ways:
  - When the set-and-forget switch in the user interface is activated, the current SOP is stored and maintained, even if polarization changes occur on the instrument input.
  - Defined Stokes: the target output SOP can be defined by the user using the Stokes parameters, which are then set using the polarization analyzer feedback,
  - Defined sequence: the device switches the SOP of the output signal in a chosen pattern with a cycling speed of up to 100 kSOPs/s.
• As an SOP switch, the N7786C cycles through a sequence of SOPs at a chosen rate up to more than 40 kHz. The internal settings for the SOP sequence are first determined with the stabilizer function for rapid direct switching. SOP switching occurs within a few microseconds. An electrical trigger input can be used to synchronize the scrambler with external events.
• As a traditional scrambler, the N7786C varies the output SOP in a random way. Full coverage of the Poincaré Sphere can be achieved within a few milliseconds.
• As a polarization analyzer, the instrument provides truly high-speed capabilities: Up to 1 M samples can be taken with a sample rate of up to 1 M samples per second.
• As fast-switching polarization controller for single-sweep wavelength dependent PDL measurements in combination with the photonics application software suite (PAS).

Many applications of the N7786C are supported by the built-in user interface. Programming uses a new SCPI command set and the instrument is addressed as a VISA resource.
The instrument comes in a compact form factor of just one rack unit height, with LAN and USB interfaces.

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• Keysight N7786C Data sheet
• Keysight N7786C User Manual