products details

Home Products

3x3 PM Fused Fiber Coupler with 33/33/33 Coupling Ratio High Polarization Extinction Ratio and Multiple Wavelength Options

Name: 3x3 PM Fused Fiber Coupler with 33/33/33 Coupling Ratio High Polarization Extinction Ratio and Multiple Wavelength Options
Brand: Gezhi Photonics (Shenzhen) Technology Co., Ltd.
SKU: PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX
Price: 438.00 USD
Availability: InStock

Brand Name:	GEZHI or OEM
Model Number:	PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX
MOQ:	1pc
Price:	US$188-US$688
Delivery Time:	2-3weeks
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

CE/RoHS/ISO9001

Document:

3x3 PM Fused Coupler 780,98...nm.pdf

Center Wavelength:

780/980/1030/1064/1310/1550nm

Operating Wavelength Bandwidth:

±10nm

Max Excess Loss:

1.0dB (0.8dB For 1310/1550nm)

Extinction Ratio:

≥17dB

Coupling Ratio:

33/33/33 ±10%

Max CW Power Handling:

0.5/1/2W

Packaging Details:

Paper box

Supply Ability:

1000pcs per month

Highlight:

33/33/33 coupling ratio PM Fiber Splitter

High Polarization Extinction Ratio Polarization Maintaining Fiber Coupler

Multiple Wavelength Options 3x3 PM Fused Fiber Coupler

Product Description

Product Overview

Our 3x3 PM fused coupler is a polarization maintaining optical fiber splitter manufactured by Gezhi Photonics via advanced fused biconical taper technology. This 3×3 PM fiber coupler evenly splits input light into three equal 33/33/33% output ports, fully supporting both fast and slow polarization axes without axis shielding. Available in multiple common laser & communication wavelengths, the device features ultra-low insertion loss, high return loss and excellent polarization extinction ratio, widely deployed in coherent optical communication, power monitoring systems and precision fiber optic test instruments.

Core Features

Low Insertion Loss & Max 1.0dB Excess Loss
High Return Loss ≥55dB
High Polarization Extinction Ratio ≥17dB (tested on slow axis by default)
Uniform 33/33/33 coupling ratio with ±10% tolerance
Multi wavelength options: 780nm, 980nm, 1030nm, 1064nm, 1310nm, 1550nm
CW power rating: 0.5W / 1W / 2W, heat sink package for >10W high power pulse/ CW
Wide operating temperature range -5℃ ~ +75℃
Two standard package sizes & customizable fiber pigtails and connectors
Both polarization axes fully functional without blocking

Typical Applications

Coherent Optical Communication Systems
Laser Power Monitoring & Detection
Precision Fiber Optical Test Instruments
Polarization Maintaining Fiber Laser Systems
Interferometric Sensing Equipment
Laboratory Optical Research

Technical Specifications Table

Parameter	Unit	Values
Type		3x3
Center Wavelength	nm	780	980	1030	1064	1310	1550
Operating Wavelength Bandwidth	nm	±10	±10	±10	±10	±10	±10
Max Excess Loss	dB	1.0	1.0	1.0	1.0	0.8	0.8
Extinction Ratio	dB	≥17	≥17	≥17	≥17	≥17	≥17
Coupling Ratio	%	33/33/33	33/33/33	33/33/33	33/33/33	33/33/33	33/33/33
Coupling Ratio Tolerance	%	±10	±10	±10	±10	±10	±10
Min Return Loss	dB	≥55	≥55	≥55	≥55	≥55	≥55
Max CW Power Handling	W	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2
Tensile Load	N	≤5	≤5	≤5	≤5	≤5	≤5
Operating Temperature	℃	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75
Storage Temperature	℃	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85
Standard Package Size	mm	3×60mm (bare fiber) / 4×70mm (900μm loose tube)

Important Notes

The PM fused coupler supports both polarization axes and cannot block any axis; standard extinction ratio test is performed on slow axis.

The above specs apply to bare devices without fiber connectors. If equipped with connectors: Insertion Loss rises 0.3dB, Return Loss drops 5dB, Extinction Ratio reduces 2dB.

For high-power scenarios over 10W, heat sink packaging is available upon request.

If used for pulsed laser applications, please provide pulse energy and peak power for customized design.

Package & Port Layout

Standard 3x3 PM coupler housing with 6 fiber ports: Port1, Port2, Port3 as input group; Port4, Port5, Port6 as output group. Serial number printed on each metal package for traceability.

Ordering Code Explanation

Model Format:PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX

Position	Code Item	Optional Code & Description
①	Wavelength	780 = 780nm 980 = 980nm 1030 = 1030nm 1064 = 1064nm 1310 = 1310nm 1550 = 1550nm S = Custom specified wavelength
②	Configuration Type	33 = 3×3 PM fused coupler
③	Fiber Type	PM780 / PM980 / PM1060 / PM1300 / PM1550 S = Custom fiber type
④	Power Handling	0L = 0.5W 01 = 1W 02 = 2W
⑤	Package Dimensions	S3 = 3.0×60mm S4 = 4.0×70mm S = Custom package size
⑥	Pigtail Type	00 = bare fiber 09 = 900μm loose tube
⑦	Fiber Length	08 = 0.8m 10 = 1m S = Custom fiber length
⑧	Connector Type	FA = FC/APC FP = FC/UPC SA = SC/APC SP = SC/UPC S = Custom connector

Customization Service

Gezhi Photonics supports full customization for 3x3 PM fused couplers:

Custom operating wavelengths & bandwidth
Special high-power heat sink packaging for CW / pulse lasers
Custom fiber length, connector types (FC, SC, LC etc.)
Special package size and labeling requirements
Test report & customized optical performance parameters

Company Info

Gezhi Photonics Co.,Ltd is a professional manufacturer of polarization maintaining fiber components, fused couplers, fiber splitters and passive optical devices. All PM couplers are strictly tested before delivery, stable performance for industrial, lab and communication global customers.

Tags:

Polarization Maintaining Components

polarization maintaining isolator

polarization maintaining optical circulator

Polarization Maintaining Fused WDM with Ultra-low Insertion Loss, High Polarization Extinction Ratio, and Wide Operating Temperature Range

Get Best Price

PM Filter WDM Polarization Maintaining WDM Filter with Ultra Low Insertion Loss High Polarization Extinction Ratio and Multiple Wavelength Combinations

Get Best Price

Products Details

Home Products

Polarization Maintaining Components

3x3 PM Fused Fiber Coupler with 33/33/33 Coupling Ratio High Polarization Extinction Ratio and Multiple Wavelength Options

All Category

CWDM Mux Demux

DWDM Mux Demux

AAWG DWDM

Filter WDM

Compact CWDM Module

Optical Add Drop Multiplexer

Fiber Optical Switches

Optical Switch Equipment

MEMS Optical Switch

Polarization Maintaining Components

High Power Components

Fiber Optic Passive Components

Patch Cable Series

Fiber Optic Box

Optical Transceiver Module

Fiber Optic Accessories

3x3 PM Fused Fiber Coupler with 33/33/33 Coupling Ratio High Polarization Extinction Ratio and Multiple Wavelength Options

Brand Name:	GEZHI or OEM
Model Number:	PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX
MOQ:	1pc
Price:	US$188-US$688
Packaging Details:	Paper box
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

GEZHI or OEM

Certification:

CE/RoHS/ISO9001

Model Number:

PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX

Document:

3x3 PM Fused Coupler 780,98...nm.pdf

Center Wavelength:

780/980/1030/1064/1310/1550nm

Operating Wavelength Bandwidth:

±10nm

Max Excess Loss:

1.0dB (0.8dB For 1310/1550nm)

Extinction Ratio:

≥17dB

Coupling Ratio:

33/33/33 ±10%

Max CW Power Handling:

0.5/1/2W

Minimum Order Quantity:

1pc

Price:

US$188-US$688

Packaging Details:

Paper box

Delivery Time:

2-3weeks

Payment Terms:

T/T

Supply Ability:

1000pcs per month

Highlight:

33/33/33 coupling ratio PM Fiber Splitter

High Polarization Extinction Ratio Polarization Maintaining Fiber Coupler

Multiple Wavelength Options 3x3 PM Fused Fiber Coupler

Product Description

Product Overview

Core Features

Low Insertion Loss & Max 1.0dB Excess Loss
High Return Loss ≥55dB
High Polarization Extinction Ratio ≥17dB (tested on slow axis by default)
Uniform 33/33/33 coupling ratio with ±10% tolerance
Multi wavelength options: 780nm, 980nm, 1030nm, 1064nm, 1310nm, 1550nm
CW power rating: 0.5W / 1W / 2W, heat sink package for >10W high power pulse/ CW
Wide operating temperature range -5℃ ~ +75℃
Two standard package sizes & customizable fiber pigtails and connectors
Both polarization axes fully functional without blocking

Typical Applications

Coherent Optical Communication Systems
Laser Power Monitoring & Detection
Precision Fiber Optical Test Instruments
Polarization Maintaining Fiber Laser Systems
Interferometric Sensing Equipment
Laboratory Optical Research

Technical Specifications Table

Parameter	Unit	Values
Type		3x3
Center Wavelength	nm	780	980	1030	1064	1310	1550
Operating Wavelength Bandwidth	nm	±10	±10	±10	±10	±10	±10
Max Excess Loss	dB	1.0	1.0	1.0	1.0	0.8	0.8
Extinction Ratio	dB	≥17	≥17	≥17	≥17	≥17	≥17
Coupling Ratio	%	33/33/33	33/33/33	33/33/33	33/33/33	33/33/33	33/33/33
Coupling Ratio Tolerance	%	±10	±10	±10	±10	±10	±10
Min Return Loss	dB	≥55	≥55	≥55	≥55	≥55	≥55
Max CW Power Handling	W	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2	0.5 / 1 / 2
Tensile Load	N	≤5	≤5	≤5	≤5	≤5	≤5
Operating Temperature	℃	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75	-5 ~ +75
Storage Temperature	℃	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85	-40 ~ +85
Standard Package Size	mm	3×60mm (bare fiber) / 4×70mm (900μm loose tube)

Important Notes

The PM fused coupler supports both polarization axes and cannot block any axis; standard extinction ratio test is performed on slow axis.

The above specs apply to bare devices without fiber connectors. If equipped with connectors: Insertion Loss rises 0.3dB, Return Loss drops 5dB, Extinction Ratio reduces 2dB.

For high-power scenarios over 10W, heat sink packaging is available upon request.

If used for pulsed laser applications, please provide pulse energy and peak power for customized design.

Package & Port Layout

Standard 3x3 PM coupler housing with 6 fiber ports: Port1, Port2, Port3 as input group; Port4, Port5, Port6 as output group. Serial number printed on each metal package for traceability.

Ordering Code Explanation

Model Format:PMFBTC-XXXX-XX-XX-X-XX-XX-XX-XX-XX

Position	Code Item	Optional Code & Description
①	Wavelength	780 = 780nm 980 = 980nm 1030 = 1030nm 1064 = 1064nm 1310 = 1310nm 1550 = 1550nm S = Custom specified wavelength
②	Configuration Type	33 = 3×3 PM fused coupler
③	Fiber Type	PM780 / PM980 / PM1060 / PM1300 / PM1550 S = Custom fiber type
④	Power Handling	0L = 0.5W 01 = 1W 02 = 2W
⑤	Package Dimensions	S3 = 3.0×60mm S4 = 4.0×70mm S = Custom package size
⑥	Pigtail Type	00 = bare fiber 09 = 900μm loose tube
⑦	Fiber Length	08 = 0.8m 10 = 1m S = Custom fiber length
⑧	Connector Type	FA = FC/APC FP = FC/UPC SA = SC/APC SP = SC/UPC S = Custom connector

Customization Service

Gezhi Photonics supports full customization for 3x3 PM fused couplers:

Custom operating wavelengths & bandwidth
Special high-power heat sink packaging for CW / pulse lasers
Custom fiber length, connector types (FC, SC, LC etc.)
Special package size and labeling requirements
Test report & customized optical performance parameters

Company Info

Tags:

Polarization Maintaining Fused WDM with Ultra-low Insertion Loss, High Polarization Extinction Ratio, and Wide Operating Temperature Range

Get Best Price

PM Filter WDM Polarization Maintaining WDM Filter with Ultra Low Insertion Loss High Polarization Extinction Ratio and Multiple Wavelength Combinations

Get Best Price

Dual Stage TGG PM Optical Isolator 780-1080nm with High Isolation for Fiber Lasers

Get Best Price

TGG Crystal Based Polarization Maintaining Optical Circulator with High Extinction Ratio Low Insertion Loss and Wide Wavelength Coverage

Get Best Price

1×2 PM1550 DWDM Polarization Maintaining Device with 1550nm Wavelength, Low Insertion Loss, and High Extinction Ratio

Get Best Price