1. Polarization Maintaining Optical Circulator - 4 Ports
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    Polarization Maintaining Optical Circulator - 4 Ports

    Model CIR-4-PM
    Price:   £499.65 £487.36
    Available Options:
    Center Wavelength:
    Connector Type:

This four port polarization maintaining optical circulator routes input light from input port to three different output ports in sequence. It has two types of route path, type A the traditional routing from port 1 to port 4; type B the full circle routing from port 1 to port 4 and then back to port 1.
This product features low insertion loss, high extinction ratio, and high isolation.


  • High isolation and extinction ratio
  • Low insertion loss
  • Low cross talk
  • High stability and reliability
  • Epoxy-free optical path


  • Fiber optical networks
  • Dispersion compensation
  • Polarization sensitive optical systems


Ordering Information:

a: Center Wavelength, a=1310 for 1310nm, a=1550 for 1550nm, etc.
b: Type of the Circulator, b=A for Type A route path; b=B for Type B route path.
c: Pigtail Type, c=0 for 250 micron Panda PM bare fiber pigtail, c=1 for 900 micron loose tube PM pigtail, etc.
d: Connector Type, d=FA for FC/APC, d=SU for SC/UPC, d=N for no connectors, etc.

Example: CIR-4-PM-1550-A-1-FA
Optical fiber circulators, four ports, PM fiber, two types of operating, +/-30nm bandwidth, 1550nm or 1310nm