Project Description

980/1550nm Polarization Maintaining WDM/Tap Coupler/Isolator Hybrid Combination

DK Photonics’ WDM/Tap Coupler/Isolator Hybrid Combination is a combination of a wavelength division multiplexer, tap coupler 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 EDFA 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
Stage of Isolator – Single Stage Dual Stage
Signal Central Wavelength(λ c) nm 1550, 1590
Signal Wavelength Range nm 1528~1565(C Band) , 1570~1605(L Band)
Max. Signal Excess Loss, λ c, @ 23℃ nm 1.3 1.5
Min. Signal Isolation, λ c, @ 23℃(Isolator) nm 31 45
Tap Ratio % 1~50
Tap Channel Typ. Loss dB 1%(19.0~21), 2%(16.2 ~ 19.2), 5%(12.2 ~ 15.2)
Min. Isolation(WDM) Signal Channel dB 30
Pump Channel dB 12
Pump Wavelength Range nm 960~990
Max. Insertion Loss(Pump to Common) dB 0.6
Min. Extinction Ratio @ 23℃ dB 20
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) N ≤5
Fiber Type Pump port – Nufern PM980-XP fiber or Specified
Common Signal and tap port – Nufern PM1550-XP fiber or Specified
Operating Temperature ℃ -5 to +70
Storage Temperature ℃ -40 to +85
Package Dimensions mm Ø5.5 x L38
  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. If there is pulse application, please be sure to inform us of pulse energy and peak power.
  4. 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

Order information  P/N:PMWTIH-①-②-③-④-⑤-⑥-⑦-⑧-⑨

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 ⑨
Wavelength Stage of Isolator Optical Power Tap Ratio Pump Configuration Axis alignment Pigtail Diameter Fiber Length Connector
59:1550 signal/980 pump S:Single Stage

U:Dual Stage

 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

LP: LC/PC

LA: LC/APC

XX: Others

Part Number Example: PMWTIH-59-S-L-01-B-F-90-10-FA

Description: Polarization Maintaining WDM/Tap Coupler/Isolator Hybrid Combination ,1550nm signal/980nm pump, single stage isolator, 1% tap, backward pump, fast axis blocked, slow axis working ,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.

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