Service Manuals, User Guides, Schematic Diagrams or docs for : Agilent 5989-8113EN N7784B High Speed Polarization Controller - Data Sheet c20140507 [6]
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>> Download 5989-8113EN N7784B High Speed Polarization Controller - Data Sheet c20140507 [6] documenatation <<Text preview - extract from the documentKeysight Technologies
N7784B High Speed
Polarization Controller
Data Sheet
Introduction
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 electrical trigger input can be used to synchronize the
scrambler with external events.
As an SOP switch, the N7784B allows switching the internal waveplates to user definable angles with
very high speed and repeatability.
As traditional scrambler the N7784B varies the output SOP smoothly in a random/pseudo random way.
The unit does not contain any moving parts and therefore is robust and withstands even rough
environmental conditions. All above-mentioned applications of the N7784B are supported by a PC
software package.
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