| Single window Wideband Fiber Coupler, WFC(Wavelength Flattened Coupler) is used  to passively split or combine light between two fibers. The device is fabricated using fused biconic tapering technique.
 The coupling ratio is designed according to customer requirements. Various types of connectors are available.
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                            |  | -  CATV - Telecommunication
 - FTTH
 - Local Area Networks
 - Test Equipment
 
 
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                            |  | - Low insertion & excess loss- Excellent uniformity
 - Low PDL
 - High directivity
 - Wide wavelength range
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                      | Coupling Ratio | IL(dB) |   
                      | 50/50 | 3.5 |   
                      | 40/60 | 4.4/2.6 |   
                      | 30/70 | 5.7/1.9 |   
                      | 20/80 | 7.5/1.2 |   
                      | 10/90 | 10.9/0.7 |   
                      | 5/95 | 14.7/0.5 |   
                      | 1/99 | 21.6/0.3 |  |  | 
                    
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                      | Configuration | 1 
                        X 2 | 1 
                        X 4 | 1 
                        X 8 |   
                      | Wavelength(nm) | 1310±40 
                        or 1550±40 |   
                      | Typical 
                        Excess Loss(dB) | 0.1 | 0.4 | 0.6 |   
                      | Max. 
                        Insertion Loss(dB) | 3.6 | 7.2 | 10.7 |   
                      | Uniformity(dB) | ≤0.6 | ≤1.0 | ≤1.6 |   
                      | Directivity(dB) | >55 |   
                      | Polarization 
                        Dependent Loss(dB) | ≤0.15 | ≤0.3 | ≤0.5 |   
                      | Operating 
                        Temparature(°C) | -40~+80 |   
                      | Dimension(mm) | 85(L)x75.5(W)x10(H) | 100(L)x80(W)x10(H) | 144(L)x95(W)x10(H) |   
                      | * Without Connector 
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                            | Output 
                              length | 1~99m |   
                            | Polishing | SPC, 
                              UPC, APC |   
                            | Input 
                              length | 1~99m |   
                            | Connector | SC, 
                              ST, FC, LC, MU, D4 |   
                            | Package 
                              type | S 
                              : for Bare fiber(250um) L : for Loose 
                              tube(0.9mm)
 A : for Cord(2.4mm)
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                            | Wavelength(nm) | 1:1310,2:1550 |   
                            | Coupling 
                              ratio | 5050 
                              : 50/50, 1090 : 10/90, 25252525 
                              : 25/25/25/25
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                            | Configuration | 1×2:0102,1×4:0104,1×8:0108 |   
                            | Single window Wideband Coupler |  |  |  |