|5989-8113EN N7784B High Speed Polarization Controller - Data Sheet c20140507 .pdf||Keysight Technologies
N7784B High Speed
The Keysight Technologies N7784B polarization controller contains a high-speed polarization controller
plus microcontroller-based driving circuitry. This unit can operate in various modes.
As a 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 aligned into a polarization maintaining fiber (PMF).
Alternatively, an external electrical feedback signal can be provided for stabilizing the SOP.
As a synchronous scrambler, the device switches the SOP of the output signal in a random (pseudo)
way. Switching of the SOP occurs within a few microseconds. The SOP is stable for a predefined time
until it again switches to a new SOP. An elect|