Polarization Maintaining filter fiber optical coupler with High Extinction Ratio

Parameter

Unit

1x2

2x2

Center Wavelength

nm

1310, 1550

980,1064

1310, 1550

980,1064

Operating Wavelength Range

nm

±40

±20

±40

±20

Excess Loss (dB)

dB

≤0.7

≤0.8

≤1.0

≤1.2

Uniformity(only for 50/50)  (dB)

dB

≤0.4

≤0.5

≤0.6

≤0.8

Typ. Insertion Loss @23°C

dB

0.4

0.5

0.5

0.6

Insertion Loss @-5 ~ +70 °C

dB

≤0.55

≤0.65

≤0.65

≤0.80

Tap Ratio

%

1±0.2%,2±0.4%,5±1%,10%,20%,30%,50%

Extinction Ratio

 @23°C

Type B (Both of axis working)

dB

≥28

≥28

≥26

≥26

Type F (Fast axis blocked)

dB

≥28

≥28

≥28

≥28

Return loss

dB

≥50

Power handling

mW

≤300

Fiber Type

Tap port 2(only for 1x2)

-

SMF-28e or PM1310 Panda fiber for 1310nm,

SMF-28e or PM1550 Panda fiber for 1550nm,

 HI1060 or PM980 Panda fiber for 980nm &1064nm

Tap port 2&4(only for 2x2)

-

PM1310 Panda fiber for 1310nm

PM1550 Panda Fiber for 1550nm

PM980 Panda fiber for 980nm&1064nm

Port 1 &Port 3

-

PM1310 Panda fiber for 1310nm

PM1550 Panda Fiber for 1550nm

PM980 Panda fiber for 980nm&1064nm

Operating temperature

°C

-5~+70

Storage temperature

°C

-40 ~+85

Package Dimensions

mm

Φ5.5±0.2xL35±1 (P1)