Polarization Maintaining Filter Coupler
The PM Filter Coupler( both axis working) is characterized with low insertion loss, high return loss, high extinction ratio and excellent environmental stability and reliability, widely applied as a PM splitter,which can divide the signal into variousratios.the PM Filter Coupler support the lightwave of each polarization to work, without blocking any polarization. So, It performs prosperly in Foct,Gyro,and other polarization maintaining fiber system
Technical Index
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Parameter |
1 x 2 |
2 x 2 |
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Wavelength (nm) |
1310, 1550 |
980,1064 |
1310, 1550 |
980,1064 |
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Operating Bandwidth (nm) |
±40 |
±20 |
±40 |
±20 |
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Excess Loss (dB) |
≤0.7 |
≤0.8 |
≤1.0 |
≤1.2 |
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Uniformity(only for 50/50) (dB) |
≤0.4 |
≤0.5 |
≤0.6 |
≤0.8 |
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Tap Ratio (%) |
1±0.2%,2±0.4%,5±1%,10%,20%,30%,50% |
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Extinction Ratio(dB) |
Type B (Both of axis working) |
≥20 |
≥20 |
≥18 |
≥18 |
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Type F (Fast axis blocked) |
≥22 |
≥22 |
≥22 |
≥22 |
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Return Loss (dB) |
≥50 |
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Power Handling (mW) |
≤300 |
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Fiber Type |
Tap port 2(only for 1×2) |
SMF-28e or PM1310 Panda fiber for 1310nm, SMF-28e or PM1550 Panda fiber for 1550nm, HI 1060 or PM980 Panda fiber for 980nm &1064nm |
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Tap port 2&4(only for 2×2) |
PM1310 Panda fiber for 1310nm,PM1550 Panda Fiber for 1550nm PM980 Panda fiber for 980nm&1064nm |
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Port 1 & 3 |
PM1310 Panda fiber for 1310nm,PM1550 Panda Fiber for 1550nm ,PM980 Panda fiber for 980nm&1064nm. |
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Ports Marking color(only for 1X2 250um bare fiber) |
Port2 :Black ,Other ports :Clear |
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Ports Marking color(only for 1X2 With 900um loose tube ) |
900um Red loose tube for all ports; Marking:port2:black. |
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Ports labeling (only for 2×2 250um& With 900um loose tube ) |
250um bare fiber& 900um Red loose tube for all ports; labeling port1,port2 ,port3,port4. |
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Operating Temperature (°C) |
-5~+70 |
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Storage Temperature(°C) |
-40 ~ +80 |
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Dimensions (mm) |
φ5.5 × L35(P1) (only for bare fiber or 900um loose tube) |
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L98XW14.5XH8.5(P6) (only for 3mm or 2mm cable) |
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Ordering Information
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PMFC |
Wavelength |
PortType |
Coupling Ratio |
Axis Alignment |
Fiber for tap port |
Pigtail Type |
Length |
Connector |
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0980=980nm |
1=1×2 |
1=1/99 |
F=Fast Axis Blocked |
1=Panda fiber |
1=250um bare fiber |
H=0.5m |
0=None |
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1064=1064nm |
2=2×2 |
2=2/98 4=4/96 |
B=Both Axis Working |
2=SMF-28e |
2=900um loose tube |
8=0.8m |
1=FC/UPC |
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1310=1310 nm |
5=5/95 |
3=HI1060 |
3=3mm loose tube |
1=1.0m |
2=FC/APC |
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1550=1550 nm |
A=10/90 |
4=2mm loose tube |
5=1.5m |
3=SC/APC |
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1480=1480 nm |
B=20/80 |
A=0.1m |
4=SC/UPC |
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C=30/70 |
B=0.75m
C=0.7m |
6=LC/PC |
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D=40/60 |
D=1.2m |
A=FC/APC on port1&3, FC/UPC on port2 |
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E=50/50 F=15/85 G=25/75 H=35/65 |
B=SC/APC on port3, SC/UPC on port1&2 C= SC/APC on port1, SC/UPC on port2&3 |