Project Description

2μm Polarization Maintaining Filter Coupler (1×2/2×2)(Both axis working)

The 2000nm Polarization Maintaining Filter Coupler is a polarization maintaining coupler which splits the light from the input PM fiber into two output PM fibers. The PM Filter Coupler support the lightwave of each polarization to work, without blocking any polarization. The rugged stainless steel package is designed for high optical performance and stability. This compact device offers low excess insertion loss, low back reflection, and high extinction ratio. Split ratios from 1 to 50% are available.

The PM Filter Coupler can be used to split high power linearly polarized light into multiple paths without perturbing the line are state of polarization (SOP).It can also be used as a power tap to monitor signal power in a PM fiber system without disturbing the linear SOP of light propagating in the PM fiber. Applications include PM fiber interferometers, power sharing in polarization sensitive systems, and signal monitoring in PM fiber systems.

If you do not see a standard PM Filter Coupler that meets your needs, we welcome the opportunity to review your desired specification and quote a custom PM Filter Coupler. Requests for custom fiber pigtails, different wavelengths, tap Ratio and handling power of operation or other specific needs will be readily addressed.

Features Applications
·         Low Insertion Loss

·         High Extinction Ratio

·         High Return Loss

·         High Isolation

·         High stability & Reliability

 ·         Fiber Optic Instruments

·         Fiber Sensors

·         Coherent Detecting

·         Research

Performance Specifications

Parameter Unit Values
Port – 1×2 2×2
Operating Wavelength nm 2000±40
Max. Excess Loss dB 1.2 1.5
Max. Uniformity dB 0.6 0.8
Tap Ratio % 1±0.2%, 2±0.4%, 5±1.0%, 10%, and 50%
Min. Extinction Ratio(Type B(Both of axis working)) dB 18
Min. Return Loss dB 50
Min. Return Loss dB 55
Max. Power Handling W 0.5, 1, 2, 5
Fiber Type Tap Port SMF-28e or PM1550 or PM1950 fiber
Input & output ports – PM1550 or PM1950 fiber
Operating Temperature ℃ 0~+65
Storage Temperature ℃ -40~+85
Package Dimensions mm Ø5.5 x L35
  1. Above specifications are for device without connector.
  2. If tap port coupling ratio is ≤ 5%, ER will be 2dB lower; for ≤1% tap port, ER is out of concern
  3. 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 transmit through the connector less than 2W.

Package Dimension

Order information  P/N: PMFC-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
Port Operating Wavelength Power Handling Axis Alignment Coupling Ratio Fiber Type for Tap Port Pigtails Diameter Fiber Length Connector
102:1×2

202:2×2

 1940:1940nm

2000:2000nm

2050:2050nm

XX: Others

 L:<0.5W

1:1W

2:2W

 B:Both axis working 50:50/50

40:40/60

30:30/70

20:20/80

10:10/90

05:5/95

03:3/97

02:2/98

01:1/99

XX: Others

 0:SM Fiber

1: PM Panda fiber

X:Others

 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

SP: SC/PC

SA: SC/APC

LP: LC/PC

LA: LC/APC

XX: Others

Part Number Example:PMFC-202-2000-L-B-50-1-90-10-FA

Description: 2000nm Polarization Maintaining Filter 2×2 Coupler -0.5W, Both axis working , 50:50 coupling ratio, 1.0m PM1950 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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