Definition of PM fiber coupler

PM fiber coupler is a key device to realize linearly polarized light coupling, splitting and multiplexing. Its biggest feature is that it can stably transmit two orthogonal linearly polarized lights, and can keep their respective polarization states unchanged, so it is widely used in various military interferometric sensors, coherent optical communications, fiber optic gyroscopes, and fiber optic hydrophones. critical optics required.

Gracyfiber can provide a variety of fused tapered polarization maintaining fiber couplers, mainly including polarization maintaining couplers with structures of 1x2 and 2x2, and wavelengths of 1310nm, 1550nm and 1064nm.

The polarization maintaining coupler provided by Gracyfiber has the characteristics of low insertion loss, high extinction ratio, and high return loss. The coupling ratio, extinction ratio and other parameters can be customized according to your needs.