3 Ports 1480nm Singlemode Polarization Insensitive Optical Circulator

3 Ports 1480nm Singlemode Polarization Insensitive Optical Circulator

The 3 Ports 1480nm Singlemode Polarization Insensitive Optical Circulator is a high-performance non-reciprocal passive optical device that directs light sequentially from Port 1 → Port 2 and Port 2 → Port 3, ensuring unidirectional signal flow with minimal insertion loss and excellent isolation. Operating at 1480 nm, it is specifically optimized for optical amplification systems (EDFA pump monitoring), wavelength multiplexing, and optical measurement setups where stable and precise signal routing is essential.

Designed with a polarization-insensitive structure, this circulator delivers consistent performance regardless of input polarization state. Its low insertion loss, high return loss, and compact package make it ideal for integration in fiber communication networks, optical amplifiers, and test instrumentation that operate near the 1480 nm band.

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.

Features

Three-port circulator
Low loss, good interchangeability, good inter-pluggability.

Three independent ports
It has low insertion loss, broadband high isolation, and low PDL.
Excellent temperature stability can be used for wavelength addition and subtraction, dispersion compensation, and EDFA applications.

Application Diagrams

Circulator can be used to send optical signals through a single fiber in two directions.
As the picture shows: A Circulator is located at both ends of the fiber. Each Circulator functions to add a signal in one direction while removing the signal in the other.

Dimension Drawing (Unit: mm)