DK Photonics' 2000/1570 nm Polarization Maintaining WDM/Isolator Hybrid Combination is a combination of a wavelength division multiplexer and an isolator in a compact package. All input and output fibers are polarization maintaining. This product has an extremely low insertion loss, a very stable tap-coupling ratio, high isolation, and high return loss. This product offers integrated solution to fiber laser application by combining more functions into a very compact package.
Performance Specifications
|
Parameter
|
Unit
|
Values
|
|
Stage of Isolator
|
-
|
Single Stage
|
Dual Stage
|
|
Signal Central Wavelength (λ c)
|
nm
|
2000
|
|
Max. Insertion Loss at 23℃, λc ± 20 nm
|
dB |
1.5
|
1.8
|
|
Min. Isolation at 23℃, λc ± 50 nm (Isolator)
|
dB |
16
|
35
|
|
Min. Isolation (WDM)
|
Signal Channel
|
dB
|
25
|
|
Pump Channel
|
dB
|
12
|
|
Pump Wavelength Range
|
nm
|
1520~1590
|
|
Max. Insertion Loss (Pump to Common)
|
dB
|
1.0
|
|
Min. Extinction Ratio @ 23℃
|
dB
|
Type B: 20, Type F: 22
|
|
Min. Return Loss
|
dB
|
50
|
|
Max. Power Handling (CW)
|
W
|
0.5, 2, 3, 10
|
|
Max. Peak Power for Pulse
|
kW
|
1, 5,10
|
|
Max. Tensile Load
|
N
|
5
|
|
Fiber Type
|
Pump port
|
-
|
PM1550 fiber or specified
|
|
Common Signal port
|
-
|
PM1950 fiber or specified
|
|
Operating Temperature
|
℃
|
-5 to +70
|
|
Storage Temperature
|
℃
|
-40 to +85
|
|
Package Dimensions
|
mm
|
Ф5.5× L35(<5W), 60x12x8(>5W)
|
- Above specifications are for device without connector.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
- Type B: Both axis working, Type F: Fast axis blocked, the default is Type B if without request.
- If there is pulse application, please be sure to inform us of pulse energy and peak power.
- If you have questions about the axial direction, please contact us.
Package Dimension
PS: Pump port is both axis working.
Order information
P/N:PMWIH-①-②-③-④-⑤-⑥-⑦-⑧
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
| ① |
②
|
③
|
④
|
⑤
|
⑥
|
⑦
|
⑧
|
|
Wavelength
|
Stage
|
Optical Power
|
Pump Configuration
|
Axis alignment (Only for signal)
|
Pigtail Diameter
|
Fiber Length
|
Connector
|
|
2057:2000 signal/1570 pump
XX: Others
|
S: Single Stage
D: Dual Stage
|
L:<0.5W
1:1W
3:3W
5:5W
10:10W
|
F: Forward Pump
B: Backward Pump
|
F: Fast axis blocked, Slow axis working
B: Both of axis working
|
25:250μm bare fiber
90:900μm Loose Fiber
XX: Others
|
05:0.5m
10:1.0m
15:1.5m
XX: Others
|
00: None
FP: FC/PC
FA: FC/APC
SP: SC/PC
SA: SC/APC
XX: Others
|
Part Number Example: PMWIH-S-2057-S-F-F-90-10-FA
Description: Polarization Maintaining WDM/ Isolator Hybrid Combination, 2000nm signal/1570nm pump, single stage isolator, fast axis blocked, slow axis working, with 0.9mm OD loose tube, 1.0m fiber length, and FC/APC connectors at all ports.
Ordering Information for Custom Parts:
If you need to customize other specifications, please provide detailed description for your requirement.
DownloadDatasheet in PDF