Shenzhen Jiangfan Communication Equipment Co., Ltd. |
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Fiber optic coupler, is a device applicated in optical fiber systems with one or more
input fibers and one or several output fibers.For the fused optical splitter,It can be divided into different ratios.such as 50/50 if the split
is even, or 80/20 if 80% of the signal goes to one side and only
20% to the other.As a result of its great funciton,Optical splitter
is a very important part in passive opitc networks (PON).FTB Fused
fiber splitter (coupler) can do Singlemode (1310/1550nm) and Multimode (850nm).Cable diameter can be 0.9mm,2.0mm,3.0mm ,Single window,dual
window and three window all we can supply .
Singlemode Dual Window Couplers are Single Mode Splitters with a defined split ratio from one or two input fibers
to 2 output fibers. Available split counts are 1×2 and 2×2 in split
ratios of: 50/50, 40/60, 30/70, 20/80, 10/90, 5/95, 1/99, 60/40,
70/30, 80/20, 90/10, 95/5, and 99/1. Dual Window Couplers are
availble with 0.9mmloose tube singlemode fiber or 250umbare fiber
and terminated or unterminated as per your needs.
UnconnectorizedDWC’s come with no connectors for easy splicing or
connectorization. Connectorized DWC’s are available with your
choice of Fiber Optic Connectors: LC/UPC, LC/APC, SC/UPC, SC/APC, FC/UPC, FC/APC, and ST/UPC.
Characteristics:
Low insertion loss and excess loss
Low polarization dependence
High optical return loss
Better uniformity
Environmental Stability and Reliability
Small package size
Application:
FTTH, LAN, PON and Optical CATV
Local ring net
Optical fiber communication system
Optical fiber test equipment
Optical fiber sensor
Coupling Ratio/Insertion Loss Conversion Chart
Coupling Ratio | Insertion Loss | |
Premium | A Grade | |
40/60 | 4.7/2.7 | 5.0/2.9 |
30/70 | 6.0/1.9 | 6.4/2.1 |
20/80 | 7.9/1.2 | 8.4/1.4 |
10/90 | 11.3/0.5 | 12.7/0.8 |
5/95 | 15.2/0.4 | 18.5/0.5 |
1/99 | 22.5/0.3 | 23.0/0.4 |