Optical Instruments

Polarization Extinction Ratio Meter

The PERM-800 optical power meter is an innovative solution that directly measures our output polarization extinction ratio from a fiber. It features unmatched low cost, all wavelength options, a large dynamic range, and high resolution. The design adds a rotary polarizer to an optical power meter. As the polarizer manually rotates, maximum and minimum intensity readings are obtained, and the ratio is ER. The rotation is continuous, providing high resolution and accuracy. The design accepts all types of fiber connectors as well as a free space laser beam. One attractive option is bare fiber can be conveniently inserted into the meter, which matches our PM fusion splicer, fiber holder. The PERM-800 is also an optical power meter. For the connector test, the polarizer rotary is pre-aligned to the key. The ease of operation has been proven in production and laboratory environments.