PM Components (Fused Type)
1. Description:
DL uses unique fusing technique and polarization maintaining fiber to build the polarization maintaining fiber 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.
2. PM Coupler Types:
* Port type: 1×2, 2×2
* 850nm, 980nm, 1060nm, 1310nm, 1550nm splitter coupler
* 980/1550 980/1060 WDM coupler
* Mini size Φ3×26mm and wideband (±40) coupler
3. PM Coupler Specifications:
|
Parameter
Operating wavelength(nm) |
CR |
P grade |
A grade |
P grade |
A grade |
EL |
Dimensions
Φ×L(mm) |
|
IL (dB) |
ER (dB) |
|
780, 850
±15 |
50/50 |
≤3.8 |
≤4.0 |
≥20 |
≥18 |
≤0.6 (P)
≤0.8 (A) |
3×54 or longer |
|
20/80 |
≤8.2/1.7 |
≤8.5/1.9 |
|
10/90 |
≤11.8/1.4 |
≤12.0/1.6 |
|
5/95 |
≤15.0/1.0 |
≤15.2/1.2 |
|
1/99 |
≤22.5/0.6 |
≤22.8/0.8 |
|
980, 1060±15 |
50/50 |
≤3.6 |
≤3.8 |
≥20 |
≥18 |
≤0.4(P)
≤0.6(A) |
3×54 or longer |
|
20/80 |
≤8.0/1.5 |
≤8.2/1.7 |
|
10/90 |
≤11.6/1.2 |
≤11.8/1.4 |
|
5/95 |
≤14.8/0.8 |
≤15.0/1.0 |
|
1/99 |
≤22/0.4 |
≤22.5/0.6 |
|
1310, 1480, 1550±15 |
50/50 |
≤3.4 |
≤3.6 |
≥24(U)
≥20(P) |
≥18 |
≤0.3(P)
≤0.4(A) |
3×54 or longer |
|
20/80 |
≤7.6/1.4 |
≤8.0/1.5 |
|
10/90 |
≤11.2/1.0 |
≤11.6/1.2 |
|
5/95 |
≤14.2/0.6 |
≤14.8/0.8 |
|
1/99 |
≤21.5/0.3 |
≤22/0.4 |
|
1310, 1480, 1550±15
(min size) |
50/50 |
≤3.8 |
≥20 |
≥18 |
≤0.6 |
3×26 |
|
20/80 |
≤8.5/1.8 |
|
10/90 |
≤12/1.4 |
|
5/95 |
≤15/1.2 |
|
1/99 |
≤22/0.6 |
* If tap port coupling ratio is ≤ 5%, ER will be 2dB lower; for ≤1% tap port, ER is out of concern
* The specifications are w/o connector.
* For devices with connectors, 0.2dB higher for IL, 5dB lower for RL and 2dB lower for ER.
* For device with connector, key aligned to slow axis.
* For wide band PM copuler is only available for 1310, 1550 type, please contact with sales for detail specification.
PM WDM Specifications:
|
WDM |
Operating wavelength(nm) |
P grade |
A grade |
P grade |
A grade |
Isolation |
Dimension
Φ×L(mm) |
|
IL (dB) |
PER (dB) |
|
980/1550 |
980±10 |
≤0.3 |
≤0.4 |
≥20 |
≥18 |
≥18 |
3×54,3×70 or customize |
|
1525~1565 |
≤0.5 |
≤0.7 |
≥20 |
≥18 |
≥18 |
4. Product Ordering Information:
PMC-X-XXX-XXX-XX/XX-X-X-XX/XXX-XX*XX
Package: 3.0×54 etc.
Connector: FC/UPC, FC/APC etc.
Fiber Type: 4=others (PM fiber model number)
Pigtail Type: 0=250μm, 1=900μm, 2=2mm, 3=3mm, 4=others
Coupling Ratio: 1/99, 50/50 etc.
Operating Wavelength: 1310nm, 1550nm etc.
Port Number: 1×2 or 2×2
Grade: P=Perfect, A=Grade A, X=on customer request