The 3 Ports 1550nm High Power Polarization Maintaining Optical Circulator is a precision-engineered, non-reciprocal passive optical device designed to route light sequentially from Port 1 → Port 2 and Port 2 → Port 3, while maintaining the input polarization state with high stability. Operating at the 1550 nm wavelength, this device offers low insertion loss, high isolation, high return loss, and an excellent polarization extinction ratio (PER), ensuring reliable and efficient performance in high-power polarization-sensitive systems.