Four-Channel Multimode Optical Attenuator
N7768A - Keysight Technologies
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 m, 62.5 m or 80 m 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.
-
product
Optical Signal Conditioning Products
The single-mode fiber N7761A, N7762A and N7764A provide 1, 2 or 4 attenuation channels in a compact remote-controlled instrument. These attenuators provide very fast adjustment and have built-in output power monitoring for accurate power setting and control, as needed for receiver sensitivity testing or in system simulations.
