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Product Description
Coupler is a kind of passive components, its main function is to redistribute the input light wave as required, avoid interrupting modulating signals. In the application of communication, some important technique parameters are must be considered, including center wavelength, bandwidth, typical excess loss, coupling ratio and the necessary environmental stability. All the optical fused couplers which employ FBT technique are proven to have high performance in applications. We are taking specific techniques to handle the empty end so as to eliminate reverse-directional reflection. Our Couplers ensure above-60dB directivity, and long-time good stability.
Application：
Fiber to the home(FTTH)
Local loop
Passive optical networks(PON)
Fiber optic CATV
Fiber communication systems
Fiber optic test equipment
Fiber optic sensing
Local area networks(LAN)
Features：
All fiber construction
High reliability
Outstanding optical performance
Different fiber types available
Technical Parameters:
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Item
|
Unit
|
Parameter
|
|
Center Wavelength
|
nm
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1310 or 1550
|
|
Bandwidth
|
nm
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±20
|
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Coupling Ratio
|
%
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1 ~ 50
|
|
Grade
|
|
p
|
a
|
b
|
|
Max. Excess Loss
|
dB
|
0.15
|
0.20
|
0.30
|
|
Max. Polarization Dependent Loss
|
dB
|
0.1
|
0.15
|
0.20
|
|
Min. Directivity
|
dB
|
55
|
50
|
40
|
|
Max. Uniformity*
|
dB
|
0.7
|
0.8
|
0.9
|
|
Typ. Wavelength Dependent Loss*
|
dB
|
0.4
|
|
Max. Temperature Dependent Loss
|
dB
|
0.3
|
|
Operating Temperature
|
°C
|
-40 ~ +85
|
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Storage Temperature
|
°C
|
-40 ~ +85
|
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Package Dimensions
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mm
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A: f3.0´55(L) (250mm bare fiber)
B: f3.0´55(L) (0.9mm loose tube)
C: 90(L)´15(W)´7(H) (0.9mm loose tube)
D: 105.2(L) ´ 78.5(W) ´12.7(H) (0.9mm loose tube)
E:90(L)´15(W)´7(H)( f3.0mmPVC tube)
F: 105.2(L) ´ 78.5(W) ´12.7(H) (f3.0mmPVC tube)
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* For 50/50 Coupler.
Ordering information:
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No.
|
Mode
|
Central Wavelength
|
Input/Output port
|
Rate
|
Pigtail length
|
Package
|
|
LW-SWC-
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SC=Single mode standard,
WFC=Single window bandwidth
WIC=Dual window bandwidth
MSC=Multi mode standard
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3=1210nm,
5=1550nm,
8=850nm,
35=1310&1550
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1/2,
1/3,
….
1/32,
2/2,
2/4,
……
2/32
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1/99,
……
50/50
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1=1M,
2=2M
……
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A:μ3.0*55（L）（250u bare fiber）
B: μ3.0*55(L)(900u loose tube)
C: 90(L)*15(W)*7(H)(900u loose tube)
D:105.2(L)*78.5(W)*12.7(H)(900u loose tube)
E:90(L)*15(W)*7(H)(μ3.0mm PVC tube)
F:105.2(L)*78.5(W)*12.7(H)( μ3.0mm PVC tube)
G:141.5(L)*101.7(W)*14.8(H)( μ3.0mm PVC tube)
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For drawings, technical data or samples configuration other than stated above, please feel free to contact us: sales@lightwit.com.cn
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