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4 Ports Polarization Maintaining Optical Circulator (4 Ports PMCIR)

 The 4 ports Polarization Maintaining optical circulator is a 4 ports micro-optic device built with PM fiber. The PM Circulator transmits the incoming signal from port1 to port2, from port2 to port3, from port3 to port4 while maintaining the polarization of the signal. It is characterized with low insertion loss, high isolation, high return loss, high extinction ratio and excellent environmental stability and reliability. It is widely used in fiber amplifier systems, fiber lasers and optical fiber sensors.



Key Features:

* Low insertion loss

* High extinction ratio

* High isolation

* Excellent stability and reliability


Applications:

* Fiber lasers

* Fiber amplifiers

* Fiber Sensors

* Optical Communications

  • Details
  • Picture

4 Ports PORT PM Circulator (PMCIR).pdf(doc:028)


Specifications:

Parameter

Unit

4 Ports Polarization Maintaining Optical Circulator

Type   A

Type   B

Type   A

Type   B

Center wavelength

nm

1064  

1310   or   1550

Operating bandwidth

nm

±5

±20

Insertion loss@23

dB

≤4.0

≤2.3

≤1.1

≤1.0

Extinction ratio

dB

≥20

≥20

Isolation @23

dB

≥45

≥25

≥40

≥22

Return loss

dB

≥50

Crosstalk

dB

≥50

Handling power

mW

≤300

≤300

Fiber type

/

PM   Fiber

Operating temperature

-5   to +50

-5   to +70

Storage temperature

-40   to   +85

Dimensions

mm

Ф5.5×   L35

* IL is 0.3dB (1310~1550nm) or 0.5dB (1064nm) higher, RL is 5dB lower and ER is 2dB lower for each connector added. The default connector key is aligned to slow axis.

* The optical path:  Type A: 1→2, 2→3, 3→4(Block 4→1),  Type B: 1→2, 2→3, 3→4, 4→1