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SM Hybrid Components

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1940/1570nm SM WDM/Tap Coupler Hybrid Combination

DK Photonics’ 1940/1570nm WDM/Tap Coupler Hybrid Combination is a combination of a wavelength division multiplexer and tap coupler in a compact package. All input and output fibers are polarization independent. 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.

Features

  • Compact Size
  • Low insertion loss
  • High channel Isolation
  • LowPDL
  • High stability and reliability

Applications

  • Fiber laser
  • Fiber amplifier
  • Fiber Sensor
  • Laboratory R&D

DK Photonics’ 1940/1570nm WDM/Tap Coupler Hybrid Combination is a combination of a wavelength division multiplexer and tap coupler in a compact package. All input and output fibers are polarization independent. 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 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 5
Fiber Type Pump port –  SMF-28e fiber or specified
Common Signal and tap port – SM1950 fiber or specified
Operating Temperature ℃ -5 to +70
Storage Temperature ℃ -40 to +85
Package Dimensions mm Ø5.5 x L35(<5W), 60x12x8(>5W)
  1. Above specifications are for device without connector.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmitsthrough the connector less than 2W.
  3. If there is pulse application, please be sure to inform us of pulse energy and peak power.

Package Dimension

SM WDM/Tap Coupler Hybrid Combination

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/1570 pump

2057:2000 signal/1570 pump

XX: other

 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, 1.0m 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.