1×4 Monolithic Fused Fiber coupler 1310/1550nm
Polarization maintaining fiber coupler are the key devices to realize the coupling, splitting and multiplexing of linearly polarized light. The most important characteristic of this system is that it can transmit two orthogonal linearly polarized light stably and keep their polarization state constant. It is used in the key optical devices of interferometric sensor, coherent optical communication, fiber optic gyroscope and fiber optic hydrophone.