OZ Optics' High Speed Electro-Optic Polarization Controller (EOPC) is based on a novel, low-loss high speed free space Electro-Optic crystal technology. It provides a simple, efficient means to quickly manipulate the state of polarization by applying an external voltage. High-Speed polarization state management is enabled using two to four crystals in a row with remarkably low loss, all housed in a compact and robust butterfly package. The device can be offered with 2, 3 or 4 crystals (depending on the customer requirement), and by applying external voltages one can change/manipulate/control the output polarization state. For endless polarization control, a device with 4 crystal elements is required while a 3 elements device will be sufficient for polarization scrambling mode operation. The compact, motionless and vibration free design allows fast linear response with less than 10 μs response time to the control signal. The controller's rapid response speed easily handles changes in polarization, caused by the external environment, and is highly suitable for polarization controlling and scrambling to either average PDL and PDG effects, or for making PMD, PDL or DOP measurements. This makes it ideal for precise test and measurement applications.
OZ Optics' offers as well a 4-channel driver, The “EOPC-1000-DRIVER-04” is a bench-top entry level module capable of controlling up to four channels Electro-Optic crystal based. The driver module converts the 0.0 to 4.0 Volts input analog control voltage signals to an amplified high-voltage output levels applied to the retardation plates of the (EOPC) crystals.
The “EOPC-1000-DRIVER-04” bench-top module includes the high voltage power supply circuit and the 4-channels high voltage high speed power amplifiers. The Electro-Optic Polarization Controller (EOPC) crystal is inserted on the lockable ZIF socket on top of the module.
