4 Ports C+L 1528~1610nm Singlemode Polarization Insensitive Optical Circulator

4 Ports C+L 1528~1610nm Singlemode Polarization Insensitive Optical Circulator

The 4 Ports C+L 1528~1610nm Singlemode Polarization Insensitive Optical Circulator is a high-performance non-reciprocal passive optical device that directs light sequentially from Port 1 → Port 2 → Port 3 → Port 4, ensuring precise and efficient unidirectional signal transmission. Designed to operate over the C+L wavelength band (1528–1610 nm), it provides broadband operation, low insertion loss, high isolation, and excellent return loss, making it an ideal solution for next-generation optical communication systems.

Featuring a polarization-insensitive design, this circulator maintains stable performance regardless of input polarization state. The device is constructed using advanced optical coating technology and precision alignment techniques, ensuring superior reliability and environmental stability under varying conditions.

This 4-port circulator is widely used in DWDM/CWDM systems, ROADM modules, EDFA and Raman amplifiers, optical sensing networks, and testing equipment, where broadband transmission and low-loss performance are critical for system stability and efficiency.

Specifications

Note: Test environment: 25°C. Data shown exclude connectors. Adding connectors will increase insertion loss by 0.3dB and reduce return loss by 5dB.

Dimension Drawing (Unit: mm)