DK Photonics' 2050/1570nm WDM/Tap Coupler Hybrid Combination is a combination of a wavelength division multiplexer, a tap coupler 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 amplifier application by combining more functions into a very compact package.
Performance Specifications
|
Parameter
|
Unit
|
Values
|
|
Signal Central Wavelength (λ c)
|
nm
|
2050
|
|
Signal Wavelength Range
|
nm
|
±40
|
|
Max. Signal Excess Loss, λ c, @ 23℃
|
dB |
1.8
|
|
Tap Ratio
|
%
|
1~50
|
|
Tap Channel Typ. Loss
|
dB
|
1% (19.5~22), 5% (13.5 ~ 16.0)
|
|
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 ns Pulse if any
|
kW
|
1, 5,10
|
|
Max. Tensile Load
|
N
|
5
|
|
Fiber Type
|
Pump port
|
-
|
PM1550 fiber or specified
|
|
Common Signal and tap port
|
-
|
PM1950 fiber or specified
|
|
Operating Temperature
|
℃
|
-5 to +70
|
|
Storage Temperature
|
℃
|
-40 to +85
|
|
Package Dimensions
|
mm
|
Ø5.5 x L38(<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.
- For forward pumping, Tap is both axis working, for backward pumping, signal output and Tap are both fast axis blocked, slow axis working. If you have questions about the axial direction, please contact us.
Package Dimension
PS: For forward pump, Tap is both axis working. For backward pump, Tap is fast axis blocked, slow axis working. Both types pump is both axis working.
Order information
P/N:PMWTH-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
|
Optical Power
|
Tap Ratio
|
Pump Configuration
|
Axis alignment
For signal
|
Pigtail Diameter
|
Fiber Length
|
Connector
|
|
5057:2050 signal/1570 pump
XX: Others
|
L:<0.5W
1:1W
3:3W
5:5W
10:10W
|
01:1% Tap
02:2% Tap
05:5% Tap
|
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: PMWTH-5057-L-01-B-F-90-10-FA
Description: Polarization Maintaining WDM/Tap Coupler Hybrid Combination, 2050nm signal/1570nm pump, 0.5W, 1% tap, backward pump, 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