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Polarization Maintaining Filter Splitter(PMFS)

The Polarization Maintaining filter splitter is a 3 or 4 ports micro-optic device built with PM fiber. The PMFS transmits a signal from one of the input to two outputs with various ratios while maintaining the polarization of the signal. It is characterized with low insertion loss, high return loss, high extinction ratio and excellent environmental stability and reliability. There are two type of working axis, one is both axis working and another is Fast axis blocked.


Key Features:

* Low insertion loss

* High extinction ratio

* Excellent stability and reliability


Applications:

* Fiber lasers

* Fiber amplifiers

* Fiber Sensors

* Optical Communications

  • Details
  • Picture

PM Filter Splitter(PMFS).pdf(doc:029)


Specifications:

Parameter

Unit

PM Filter Splitter

1×2

2×2

1×2

2×2

Center wavelength

nm

1064

1310,1550

Operating bandwidth

nm

±20

±40

Excess loss

dB

≤0.8

≤1.0

≤0.7

≤1.0

Extinction ratio

Type F

dB

≥22

≥20

≥22

≥20

Type B

dB

≥20

≥18

≥20

≥18

Tap ratio

%

1±0.2%, 2±0.4%, 5±1.0%, 10±2.0%, 20±2.5%,   30±3.0%, 40±4.0%, and 50±5.0%

Return loss

dB

≥50

Handling power

mW

≤300

≤500

Fiber type

/

PM fiber Input / Output
  SMF-28e/Hi1060 or PM fiber for tap

Operating temperature

-5~+70

Storage temperature

-40~+85

Dimensions

mm

Φ5.5×L35 or Ф3.0× L30

* Type B: Both axis working, Type F: for Fast axis blocked.

*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.