Page 1
EasyPath Passive
Optical Splitter
User Manual
V1.00
800－810－9292
Page 2
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Contents
1 Overview .............................................................................................1
2 Features ..............................................................................................1
3 Technical Specifications .....................................................................1
3.1 1:2（2:2）Three-Window Coupler Module ................................................. 1
3.2 1:4(2:4) Three-Window Coupler Module
..................................................... 3
3.3 1:8(2:8) Three-Window Coupler Module Figure
.......................................... 4
3.4 1:16(2:1 6) Three-Window Coupler Module Drawing
................................... 5
3.5 1:32(2:3 2) Three-Window Coupler Module Drawing
................................... 6
4 Application ..........................................................................................8
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Passive Optical Splitter User Manual Page 1
1 Overview
Optical Splitter can couple, tribute and distribute optical signal in
optical transmission network, Optical Splitter is important passive
device in optical channel, and Optical Splitter has multi-input-port
and multi-output-port. In common, M×N means one Optical Splitter
has M input ports and N output ports. Main module of POS (Passive
Optical Splitter) is 1×N three-window coupler with tree type, and
this module is connected in series by N-1 1×2 three-window coupler.
It can meet precision requirement of optical splitter ratio in 1310nm,
1490nm and 1550nm three wavelength telecommunication window.
This module has feature of low excess loss and low PDL. Optical
Splitter is widely used in FTTx and broadband optical network.
2 Features
Three operating windows
Low excess loss
Low PDL
High stability and reliability
3 Technical Specifications
3.1 1:2（2:2）Three-Window Coupler Module
2:2 Three-W indow Coupler F i gure
1:2 Three-W indow Coupler F i gure
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Passive Optical Splitter User Manual Page 2
1:2(2:2) Three-Window Coupler Module Figure
Specifications
Operating wavelength (nm)
1310, 1490 and 1550 three windows
Operating bandwidth (nm)
1310±40, 1490±10 & 1550±40
Insertion loss (dB)
≤3.9
Center Uniformity(dB)
<1
Typical excess loss (dB)
0.1
PDL (dB)
≤0.2
Directivity (dB)
≥55
Operating temperature (oC)
-20 ~ +70
Storage temperature (oC)
-40 ~ +85
Fiber lead length
1 meter, others on request
Fiber type
SMF-28e（900μm, 2mm, 3mm loose
tube）
Encapsulation dimension
（mm）
φ3 X 54
Note:
The above parameter is referenced
without connector’s IL. If the product
needs connectors, the IL should add
0.2dB for every connector.
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Passive Optical Splitter User Manual Page 3
3.2 1:4(2:4) Three-Window Coupler Module
1:4(2:4) Three-Window Coupler Module Figure
Specifications
Operating wavelength (nm)
1310, 1490 and 1550 three windows
Operating bandwidth (nm)
1310±40, 1490±10 & 1550±40
Insertion loss (dB)
≤7.6
Center Uniformity(dB)
<2
Typical excess loss (dB)
0.3
PDL (dB)
≤0.3
Directivity (dB)
≥55
Operating temperature (oC)
-20 ~ +70
Storage temperature (oC)
-40 ~ +85
Fiber lead length
1 meter, others on request
Fiber type
SMF-28e（ 900μm, 2mm, 3mm loose
tube）
Encapsulation dimension
（mm）（W*D*H）
100×80×8（aluminum box）
Note:
The above parameter is referenced
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Passive Optical Splitter User Manual Page 4
without connector’s IL. If the product
needs connectors, the IL should add
0.2dB for every connector.
3.3 1:8(2:8) Three-Window Coupler Module Figure
1:8(2:8) Three-Window Coupler Module Figure
Specifications
Operating wavelength (nm)
1310, 1490 and 1550 three windows
Operating bandwidth (nm)
1310±40, 1490±10 & 1550±40
Insertion loss (dB)
≤11.7
Center Uniformity(dB)
<3
Typical excess loss (dB)
0.45
PDL (dB)
≤0.4
Directivity (dB)
≥55
Operating temperature (oC)
-20 ~ +70
Storage temperature (oC)
-40 ~ +85
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Passive Optical Splitter User Manual Page 5
Fiber lead length
1 meter, others on request
Fiber type
SMF-28e（ 900μm, 2mm, 3mm loose
tube）
Encapsulation dimension
（mm）（W*D*H）
100×80×8（aluminium box）
Note:
The above parameter is referenced
without connector’s IL. If the product
needs connectors, the IL should add
0.2dB for every connector.
3.4 1:16(2:16) Three-Window Coupler Module Drawing
1:16(2:16) Three-Window Coupler Module Figure
Specifications
Operating wavelength
(nm)
1310, 1490 and 1550 three windows
Operating bandwidth
(nm)
1310±40, 1490±10 & 1550±40
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Passive Optical Splitter User Manual Page 6
Insertion loss (dB)
≤15.5
Center Uniformity(dB)
<4
Typical excess loss
(dB)
0.6
PDL (dB)
≤0.5
Directivity (dB)
≥55
Operating temperature
(oC)
-20 ~ +70
Storage temperature
(oC)
-40 ~ +85
Fiber lead length
1 meter, others on request
Fiber type
SMF-28e（900μm, 2mm, 3mm loose tube）
Encapsulation
dimension （ mm ）
（W*D*H）
140×115×18（ABS plastic box）
Note:
The above parameter is referenced without
connector’s IL. If the
product needs
connectors, the IL should add 0.2dB for
every connector.
3.5 1:32(2:32) Three-Window Coupler Module Drawing
1:32(2:32) Three-Window Coupler Module Drawing
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Passive Optical Splitter User Manual Page 7
Specifications
Operating wavelength
(nm)
1310, 1490 and 1550 three windows
Operating bandwidth
(nm)
1310±40, 1490±10 & 1550±40
Insertion loss (dB)
≤19.4
Center Uniformity(dB)
<5
Typical excess loss
(dB)
0.75
PDL (dB)
≤0.6
Directivity (dB)
≥55
Operating temperature
(oC)
-20 ~ +70
Storage temperature
(oC)
-40 ~ +85
Fiber lead length
1 meter, others on request
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Passive Optical Splitter User Manual Page 8
Fiber type
SMF-28e
（
900μm, 2mm, 3mm loose tube
）
Encapsulation
dimension (mm)
(W*D*H)
140×115×18（ABS plastic box）
Note:
The above parameter is referenced without
connector’s IL. If the product needs
connectors, the IL should add 0.2dB for every
connector.
4 Application
Optical communication systems
CATV
FTTH
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GW DELIGHT TECHNOLOGY CO., LTD
Address: No.38, Shangdi Xilu, Haidian District, Beijing
Post Code：100085
Telephone：(86-10) 62961077
Fax：(86-10) 82899881
Website：www.gwdelight.com
E-mail：gwdelight@gwdelight.com
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