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PM Filter&Tap Coupler

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1550nm Polarization Maintaining Tap Coupler (1×2/2×2) (Fast axis blocking)

The 1550nm Polarization Maintaining Tap Coupler is a polarization maintaining coupler which splits the light from the input PM fiber into two output PM fibers. The state of polarization can be aligned either with the slow axis or the fast axis of the PM fibers. 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.

Features

  • Low Insertion Loss
  • High Extinction Ratio
  • Compact In-Line Package
  • High Stability and Reliability

Applications

  • Fiber Optic Instruments
  • Fiber Sensors
  • Coherent Detecting
  • Research

The 1550nm Polarization Maintaining Tap Coupler is a polarization maintaining coupler which splits the light from the input PM fiber into two output PM fibers. The state of polarization can be aligned either with the slow axis or the fast axis of the PM fibers. 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.

This PM tap coupler is made of separate light crystals; the output port of light is different from the PM Filter Coupler. And its coupling ratio is more accurate, can handle higher power than PM filter coupler.

The PM Tap 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 Tap Coupler that meets your needs, we welcome the opportunity to review your desired specification and quote a custom PM Tap Coupler. Requests for custom fiber pigtails, different wavelengths, tap Ratio and handling power of operation or other specific needs will be readily addressed.

Performance Specifications

PARAMETER UNIT VALUES
Configuration 1×2 2×2
Center Wavelength nm 1550
Operating Wavelength Range nm ±40
Tap Coupling Ratio % 1±0.2%, 2±0.4%, 4±0.8%, 5±1.0%, 10%, 20% and 50%
Max. Insertion Loss dB IL related to CR
Max. Excess Loss dB 0.7 1.1
Uniformity (Only for 50/50) dB 0.6 0.8
Mini. Extinction Ratio Type F (Fast axis blocked) dB 22 20
Return Loss dB ≥50
Max. Power Handling W 0.5, 1, 2, 5,10, 20
Max. Tensile Load N 5
Fiber Type SMF-28e or PM1550-XP Panda fiber for tap port

PM1550-XP fiber for input & output ports

Operating Temperature -5 to +70
Storage Temperature -40 to +85
Package Dimensions mm Ø5.5 x L35
  1. Above specifications are for device without connector. All parameters are tested at room temperature.
  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 transmits through the connector less than 2W.
  4. For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
  5. If there is pulse application, please be sure to inform us of pulse energy and peak power.

 

Comparison of three types of 1X2 polarization maintaining couplers:

Polarization Maintaining Tap Coupler

Package Dimension

1X2
2X2
1X2 Polarization Maintaining Tap Coupler
2X2 Polarization Maintaining Tap Coupler

Order information

P/N: PMTC-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.
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
15:1550nm
XX: Others
L:<0.5W
1:1W
2:2W
F: Fast axis blocked
50:50/50
40:40/60
30:30/70
20:20/80
10:10/90
05:5/95
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
SA: SC/APC
LP: LC/PC
LA: LC/APC
XX: Others
Part Number Example: PMTC-102-15-2-F-50-1-25-10-00

Description: 1550nm Polarization Maintaining Tap Coupler 1×2, – 2W, Fast axis blocked, 50:50 coupling ratio, 1.0m PM Panda Fiber with bare fiber and no connectors at all ports.

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.