PM Faraday Rotator Mirror

PM Faraday Rotator Mirror is a polarization-maintaining version of the Faraday mirror, designed specifically for use with polarization-preserving fiber systems. Featuring a 45-degree Faraday rotator combined with a mirror and integrated with PM fiber pigtails, it reflects light with a deterministic 90-degree polarization rotation while maintaining the linear polarization state aligned to the fiber’s slow or fast axis. This device is essential in PM fiber interferometers, high-stability laser cavities, and advanced sensing systems where both polarization extinction and automatic compensation for birefringence fluctuations are required. Its precise and stable performance is vital for applications demanding ultimate polarization control and interferometric signal integrity.