OPC PHOTONICS’ WDM/Tap Coupler Hybrid Combination is a combination of a wavelength division multiplexer and a tap coupler in a compact package. 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.
| Features | Applications |
| · Compact Size
· Low insertion loss · High channel Isolation · High Extinction Ratio · High stability and reliability |
· Fiber laser
· Fiber amplifier · Fiber Sensor · Communications · Laboratory R&D |
Performance Specifications
| Parameter | Unit | Values | |
| Signal Central Wavelength (λ c) | nm | 1940, 2000,2050 | |
| Signal Wavelength Range | nm | ±40 | |
| Max. Signal Excess Loss, λ c, @ 23℃ | nm | 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 | |
| Max. PDL | dB | 0.15 | |
| 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) | N | ≤5 | |
| Fiber Type | Pump port | – | SMF-2e fiber or Specified |
| Common Signal and tap port | – | Nufern SM1950 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. Power transmits through the connector less than 2W.
- If there is pulse application, please be sure to inform us of pulse energy and peak power.
Package Dimension
PS: For forward pump, signal wavelength is polarization independent. For backward pump, signal wavelength is Polarization dependent.
Order information P/N:WTH-①-②-③-④-⑤-⑥-⑦
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 |
| Wavelength | Optical Power | Tap Ratio | Pump Configuration | Pigtail Diameter | Fiber Length | Connector |
| 9457:1940 signal/1970 pump
2057:2000 signal/1970 pump |
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 |
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 SA: SC/APC XX: Others |
Part Number Example: WTH-9457 -L-01-B-90-10-FA
Description: SM WDM/Tap Coupler Hybrid Combination, 1940nm signal/1570nm pump, 1% tap, forward pump, SMF-28e fiber at 1570nm port, other with SM1950 fiber, with 0.9mm OD loose tube, 1.0 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.
Request a quote
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