The Agilent 81634A optical power sensor is specially designed for spectral ripple and low PDL measurements of optical components.
Agilent's current production model is the 81634B. The only difference between these two models is the 81634B has incorporated an analog output signal (bnc).
Sensor element: InGaAs
Wavelength range: 800 to 1700 nm
Power range: +10 dBm
Applicable fiber type: Standard SM and MM up to 62.5µm core size