Agilent Technologies N7784B
the N7784B allows switching the internal waveplates to user definable angles with very high speed and repeatability. The unit does not contain any moving parts and therefore is robust and withstands even rough environmental conditions. As traditional scrambler the N7784B varies the output SOP smoothly in a random/pseudo random way.| Part No. | N7784B |
|---|---|
| Datasheet | N7784B Download |
| Manufacturer |  Agilent Technologies |
| Description | High Speed Polarization Controller |
| Buy | Stock & Price |
APPLICATIONS
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● Interferometry: polarization stabilization to maximize contrast ratio Recirculating loop experiments: loop-synchronous polarization scrambling Trigger Fiber loop Pol contr Switch System test: polarization sensitivity analysis on link/transmission quality Tx unit Rx unit Agilent N7784B Instrument Setup and Application Examples The instrument setup is shown in Figure 1. If a scrambling or switching operation is desired, only ports I and II are used. If the SOP of the signal is stabilized and the signal is fed in a PMF, then port II and port III have to be connected by an SMF. In this situation, the output signal is available on port IV. If an external feedback signal is available for stabilization, only ports I and II are occupied. Optical input Port I PC input Port II PC output Port III PBS input Port IV PBS output Analog in Computer Figure 4. Recirculating loop SMF Polarization controller SMF PMF Pol splitter The results obtained in re-circulating loop experiments depend heavily on the PMD and PDL properties of the loop.