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PM Hybrid Components

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1940/1570 nm Polarization Maintaining WDM/Isolator Hybrid Combination

DK Photonics’ 1940/1570 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.

Features

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

Applications

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

DK Photonics’ 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 1940
Max. Insertion Loss at 23℃, λc ± 20 nm nm 1.5 1.8
Min. Isolation at 23℃, λc ± 50 nm (Isolator) nm 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)
  1. Above specifications are for device without connector.
  2. 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.
  3. Type B: Both axis working, Type F: Fast axis blocked, the default is Type B if without request.
  4. If there is pulse application, please be sure to inform us of pulse energy and peak power.
  5. 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
9457:1940 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

SC/APC

XX: Others

Part Number Example: PMWIH-9457-S-F-F-90-10-FA

Description: Polarization Maintaining WDM/ Isolator Hybrid Combination ,1940nm 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.