Keysight Technologies 81634B

The Keysight (Agilent) 81634B Optical Power Sensor Module provides high-precision optical power measurements from 800 to 1700 nm. With sensitivity down to –110 dBm and polarization dependence below ±0.005 dB, it is ideal for single- or multichannel fiber optic device testing. Compatible with all Agilent 816x Lightwave mainframes, the module supports bare fiber and standard connector adapters. A hermetically sealed, thermally stabilized detector with a glass window ensures stable, repeatable readings across variable environmental conditions. The 81634B enables advanced applications such as data logging, stability analysis, and synchronized spectral measurements with tunable laser modules. It supports fast acquisition with averaging times as low as 100 µs and logs up to 20,000 data points for detailed performance tracking. Testwall can supply the used Keysight (Agilent) 81634B, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 81634B.