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780~890nm PM Circulator

The high power PM circulator is characterized with low insertion loss, high extinction ratio, high isolation, high power handling, high return loss, excellent environmental stability and reliability. They are ideal for fiber laser and instrumentation applications.   



* Fiber Laser

* Fiber Sensor


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780~890nm PM Circulato-191-V1.3.pdf




High Power

Low Power

3 Port

4 Port

3 Port

4 Port

Operating wavelength( nm)

780808850 880 or customized



Insertion loss in bandpass at 23( dB)





Band of isolation( nm)


Isolation in band at 23( dB)


Typical Peak isolation ( dB)


Extinction ratio ( dB)


Return loss ( dB)


Fiber type (can be customized)

Panda PM fiber

Input max. power handling (W)



Dimensions (L x W x H mm)


Operating temperature()

-5 ~ +50

Storage temperature()

-20 ~ +70

*Fort 3port type, input power of Port3<0.3W;

*For 4 port type, the port 1 to 2, 2to 3, 3 to 4 and 4 to 1 is pass; the port 2 to 1, 3 to 2, 4 to 3 is isolated.

*The precondition of above specifications is extinction ratio of system ≥25dB

*The Above specifications is without connector, the connector handle power ≤0.3W

*IL is 0.80dB higher, RL is 5dB lower and ER is 3dB lower for each connector added. The default connector key is aligned to slow  axis.