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638nm Polarization Maintaining Isolator

The 638nm Polarization Maintaining Isolator is a passive device that guides lights at 638nm in only one direction while minimizing unwanted feedback. It is characterized with low insertion loss, high extinction ratio, high isolation, and excellent environmental stability and reliability. 


Key Features

Low insertion loss

High extinction ratio

High isolation

Excellent stability and reliability 


Applications

Fiber Sensors 

Instrumentation



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638nm Polarization Maintaining Isolator(PMISO).pdf


Specifications

                        Type

Parameter

Unit

Value

Center   wavelength

nm

638

Operating   bandwidth

nm

±10

Typ.   Insertion loss @23

dB

≤1.3

Max.   Insertion loss @23

dB

≤1.6

Extinction   ratio

dB

≥20

Min.   Isolation λc, 23, all polarization states

dB

≥23

Return   loss

dB

≥45

Handling   power

mW

≤300

Fiber   type

/

PM   Panda Fiber

Operating   temperature

+23   ~ +45

Storgae   temperature

-20   ~ +70

Dimensions

mm

20 x L66

* IL is 1.5dB higher, RL is 5dB lower and ER is 3dB lower for each connector added. The default connector key is aligned to slow axis.