Project Description

1310/1550nm Polarization Maintaining Fused WDM

DK Photonics uses unique fusing technique and polarization maintaining fiber to build the 1310/1550nm polarization maintaining fused WDM. It features low excess loss, small size and high polarization extinction ratio. PM fused WDM is widely used for fiber laser, optical sensors and optical gyro.

This product can also be used to multiplex other wavelengths. Including 980/1030 nm (pulsed laser applications) and 1064/1550 nm (Erbium-Ytterbium pumping). Low power (300mW, 500mW) and high power (20W) handling are available. They are ideal for polarization maintaining fiber amplifiers, fiber lasers, and high speed communication system and instrumentation applications.

Features Applications
·         Low Insertion Loss

·         High Isolation

·         High Extinction Ratio

·         High power handling

·         Polarization-Insensitive

·         High Stability and Reliability

 ·         Fiber laser

·         Fiber amplifier

·         Fiber Sensor

·         Monitoring in Coherent Systems

·         Communications

Performance Specifications

Parameter Unit Specifications
Operating Wavelength nm 1310/1550
Operating bandwidth nm ±15
Max. Insertion Loss Pump Port dB 0.50
Signal Port dB 0.50
Min. Isolation dB 16
Min. Extinction Ratio dB 18
Min. Directivity dB 55
Max. Power Handling W 2, 5,10
Operating Temperature °C -5 ~ +70
Storage Temperature °C -50 ~ +85
Fiber Type – PM panda fiber
Fiber Pigtail Length m 1m or custom length
Port Configuration – 1×2
Package Dimension mm Ф3.0×54(bare fiber), or Ф3.0×70(900μm loose tube)
  1. Above specifications are for device without connector, and the PM WDM device is both axis working, no axis can be blocked; default test extinction ratio is on the slow axis. All parameters are tested at room temperature.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. Power transmits through the connector less than 2W. The default connector key is aligned to slow axis.
  3. For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
  4. If there is pulse application, please be sure to inform us of pulse energy and peak power.

Package Information:

Order information   P/N: PMFBTWDM-①-②-③-④-⑤-⑥

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
Port Operating Wavelength Power Handling Pigtails Diameter Fiber Length Connector
102:1×2

202:2×2

 95:980/1550nm

65:1064/1550nm

96:980/1064nm

35:1310/1550nm

XX: Others

 L:<0.5W

1:1W

3:3W

5:5W

10:10W

 25:250μm bare fiber

90:900μm Loose tube

XX: Others

 08:0.8m

10:1.0m

XX: Others

 00:None

FP: FC/PC

FA: FC/APC

SA: SC/APC

LA: LC/APC

XX: Others

Part Number Example PMFBTWDM-102-35-L-90-10-FA

Description: 1310/1550nm 1×2 Polarization Maintaining Fused WDM – 0.5W, 1.0m PM Panda Fiber with 0.9mm OD loose tube, 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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