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Optical Power Measurement Products
Keysight optical power measurement instruments and modules provide high performance functionality. These modules include multiport power meters, optical power sensor modules, optical heads and return loss modules.
Multiport power meters
Standalone multiport instruments of the N774xC and predecessor N774xA families provide fast sampling, deep memory and fast data transfer, especially for multichannel applications.
Power sensor modules
Power sensor modules provide a front panel optical input that accepts various 81000xI connector interfaces for popular fiber connector types or bare fibers. Besides giving optical power in units of W or dBm or dB referred to a reference, calibrated for any wavelength in the available range, these advanced instruments provide high speed data logging of up to 20 k (100 k for the 81636B) values, triggered internally or externally.
Optical heads provide a 5 mm diameter detector area and allow flexible placement of the power meter which is then connected to the N7749C, 81618A or 81619A interface module in the mainframe. The functionality is the same as for the sensor modules and a choice of adapters allows input from popular connector types, bare fibers or open beams.
Return loss modules
Return loss modules use two power sensors and fiber couplers to provide a direct measurement of the optical return loss. One sensor measures the optical power reflected back to the instrument while the other monitors the optical power output from the instrument. The ratio provides the return loss. These modules can use an external light source and can also be provided with internal Fabry-Perot lasers for very stable measurements.
Find the Series that is Right for You
Optical Power Meter Heads
Multiport Power Meters
Power Sensor Modules
Return Loss Modules
Protect Your Innovation Investment
Featured Resources for the Optical Power Measurement Products
Configuration Guides 2019.07.21
Lightwave Solution Platform
User Manuals 2018.11.30
81618A/9A Optical Head Interface Modules and Keysight 81620B/3B/4B/6B/8B Optical Heads User’s Guide
Lightwave Catalog: Test & Measurement Networks and Data Centers
Data Sheets 2017.11.30
Power Sensor Modules - Optical Heads - Return Loss Modules
User Manuals 2015.01.31
81610A/11A/12A/13A/14A Return Loss Module User's Guide
User Manuals 2015.01.31
81630B/4B/6B/7B Power Sensor Modules and 81635A Dual Power Sensor Module
View All Resources