Optical Polarization Maintaining Coupler 780nm 840nm 980nm 1310nm 1480nm 1550nm
Sailotar uses unique fusing technique and polarization maintaining fiber to build the polarization maintaining fused standard coupler (PMC). The coupling ratio could be selected according to customer's request. It features low excess loss, small size and high polarization extinction ratio. PMC is widely used for optical sensors and optical gyro, optical amplifier.
Parameter
|
780,840 ± 15nm
|
980,1064 ± 15nm
|
1310,1480,1550 ± 15nm
|
IL(dB)
@Central wavelength
|
CR
|
P
|
A
|
P
|
A
|
P
|
A
|
50/50
|
≤3.8
|
≤4.0
|
≤3.6
|
≤3.8
|
≤3.4
|
≤3.6
|
30/70
|
≤6.3/2.2
|
≤6.5/2.4
|
≤5.75/2.0
|
≤6.1/2.1
|
≤5.6/1.95
|
≤5.75/2.1
|
20/80
|
≤8.2/1.7
|
≤8.5/1.9
|
≤8.0/1.5
|
≤8.2/1.7
|
≤7.6/1.4
|
≤8.0/1.5
|
10/90
|
≤11.8/1.4
|
≤12.0/1.6
|
≤11.6/1.2
|
≤11.8/1.4
|
≤11.2/0.85
|
≤11.6/1.0
|
5/95
|
≤15.0/1.0
|
≤15.2/1.2
|
≤14.8/0.8
|
≤15.0/1.0
|
≤14.2/0.6
|
≤14.8/0.8
|
3/97
|
≤17.5/0.9
|
≤17.7/1.0
|
≤16.57/0.45
|
≤17.12/0.6
|
≤16.2/0.4
|
≤16.7/0.5
|
2/98
|
≤19.0/0.85
|
≤19.2/0.95
|
≤18.4/0.4
|
≤18.9/0.5
|
≤18.0/0.35
|
≤18.5/0.45
|
1/99
|
≤22.5/0.75
|
≤22.8/0.85
|
≤22.0/0.35
|
≤22.5/0.4
|
≤21.5/0.3
|
≤22/0.4
|
0.1/99.9
|
28~32 / ≤0.6
|
28~32 / ≤0.3
|
28~32 / ≤0.25
|
Connector Loss
|
0.8
|
0.5
|
0.3
|
ER(dB)
|
CR > 5%
|
20
|
18
|
20
|
18
|
20
|
18
|
5% ≥ CR > 1%
|
18
|
16
|
18
|
16
|
18
|
16
|
CR ≤ 1%
|
Out of concern
|
Dimension: Φ×L(mm)
|
3×54 or longer
|
2.Mini size PM Coupler Specifications:
Parameter
|
Unit
|
Specification
|
Return loss
|
dB
|
≥50
|
Directivity
|
dB
|
≥50
|
Power handling
|
mW
|
≤500
|
Operating temperature
|
degree Celsius |
-5 ~ 75
|
Storage temperature
|
degree Celsius
|
-40 ~ 85
|
Fiber type
|
degree Celsius
|
Panda PM fiber |
