Features

• Mechanical and Thermal Stability
• Continuously Variable Split Ratio

The Variable Polarization Splitter Kit is based on Thorlabs' FiberTable. A PM fiber attaches to the input FiberPort, which collimates the output. The polarization of this beam is then rotated with a half-wave retarder. By changing the orientation, the ratio of the vertical to horizontal state of polarization (SOP) is changed, which then affects how much signal is transmitted and reflected through the polarizing beamsplitter cube. The beamsplitter is designed to transmit the P component and reflect the S component.

The P component transmittance is >96% (<1.5% surface reflection) and the S component reflectance is >98%, which leads to an excellent extinction ratio. The extinction ratio of the transmitted P-component and reflected S-component is >1000:1. The split ratio is continuously variable from 0 to 30 dB and is dependent on polarization extinction ratio from the input PM fiber.

Each kit comes with 1x FiberTable (51 mm x 60 mm), 3x PAF FiberPorts, 1x RZBH Rotating Half-Wave Plate, 1x PSCLB Polarizing Beamsplitter, and 3x HCA Wall Plates.