Faraday Rotator Mirror(FRM)
Low Excess Loss Wide Operating Wavelength Range Low PDL Compact Design High Stability And Reliability
Low Excess Loss Wide Operating Wavelength Range Low PDL Compact Design High Stability And Reliability
a fiber optic hydrophone consists of a sensing Michelson interferometer and a compensating Mach-Zehnder interferometer for optical path length compensation. The double interferometer configuration has the following advantages: the hydrophone can be made more sm 1; a laser source with a relatively short coherence length can be used; and the compensating interferometer can be located near the signal processing electronics, far away from the sensing interferometer and noise introduced by reference arm can be greatly reduced.
The optical fiber Faraday rotating mirror can reflect the light relative to the incident light SOP in the orthogonal polarization direction of 90°. The in-line fiber optic Faraday rotator is used to change the polarization state of the input light, so that the direction of the polarized light passing through the Faraday rotator is rotated by 45 degrees. With low insertion loss, high return loss, high signal-to-noise ratio and good environmental stability and reliability, it can minimize the polarization state change caused by thermal disturbance and mechanical disturbance in the fiber, and it is very good in improving the performance of fiber amplifier, fiber laser and fiber interferometer.