Synchronous Scrambling
See datasheet of the
A3200 Synchronous Scrambler.
As the measurements on the last page show, the polarization state (SOP) of the loop does not change randomly. All SOPs typically lie more or less on a surface going through the Poincaré sphere.
This deterministic behavior can only be overcome by actively scrambling the SOP inside the loop (see figure). Our A3200 is a polarization controller based on LiNbO3 technology. The instrument is capable of quickly switching the SOP within 10µs. Switching can be synchronized by an external signal enabling loop-synchronous operation.
Feature highlights:
- Random scrambling operation at various speeds
- Pseudo-random scrambling operation for repeated measurements
- 10µs switching time between SOPs.
- TTL trigger inputs for loop-synchronization.