Near infrared broadband fiber ring resonator (1250-1370nm)

Optical circulators are three port devices, and light can only propagate in one direction. If the signal is input from port 1, it is output from port 2; And if the signal is input from port 2, it will be output from port 3, with very low output loss. When light is input from port 2, there is a significant loss when output from port 1. Similarly, when light is input from port 3, there is also a significant loss when output from ports 1 and 2. Optical circulators are irreversible optical devices. Xiaoxiao photon ring resonator has high isolation and low insertion loss, and can be widely used in advanced communication systems