Splitter FBT Coupler Fused Biconical Taper 1310nm 1550nm
Low Excess loss
Low polarization dependent loss
optional Coupling Ratio
FBT Coupler is a type of splitter which is based on fused biconical taper technology. The technology is widely accepted and adopted in the PON solution. FBT or fused biconical taper is a traditional technology that two fibers are twisted and fused together under high temperature while the device is being elongated and tapered.
Corephy optic manufacture and provide a wide breadth of FBT couplers, which includes SM standard coupler, dual-window coupler, three-window coupler, wideband coupler with low insertion loss and high performances. The FBT couplers are available with coupling ration ranging from 1:99 to 50:50. Customized specifications are basically available.
|
Application FTTX System PON Network LAN EDFA |
 |
| Stainless Steel Tube | ABS Box | LGX Chassis | 19”Rackmount |
Specification
| Parameter | FBT Coupler Device | |
| Configuration | 1×2 or 2×2 | |
| Operating Wavelength (nm) | Single Window 1310 or 1550,Dual Window 1310&1550,Triple Window 1310&1490&1550 | |
| Bandwidth (nm) | ±40 | |
|
Coupling Ratio
|
Insertion Loss(dB) | |
| P Grade | A Grade | |
| 50/50 | ≤3.3 | ≤3.5 |
| 40/60 | ≤4.5/2.6 | ≤4.7/2.8 |
| 30/70 | ≤5.7/1.9 | ≤5.9/2.1 |
| 20/80 | ≤7.6/1.3 | ≤7.75/1.38 |
| 10/90 | ≤10.85/0.68 | ≤11.2/0.75 |
| 5/95 | ≤14.4/0.45 | ≤15.5 /0.48 |
| 2/98 | ≤18.5/0.6 | ≤19.8/0.38 |
| 1/99 | ≤21.8/0.28 | ≤22.8/0.35 |
| PDL (dB) | ≤0.15 | ≤0.2 |
| Directivity (dB) | ≥50 | |
| Return Loss(dB) | ≥55 | |
| Parameter | Box | ||||||||
| Operating Wavelength | nm | Single Window 1310 or 1550,Dual Window 1310&1550,Triple Window 1310&1490&1550 | |||||||
| (1×N) | N=3 | N=4 | N=5 | N=8 | N=16 | N=24 | N=32 | N=64 | |
| Fiber Type | Corning G657A1 | ||||||||
| IL(MAX) | dB | 5.41/5.62 | 7.01/7.22 | 7.81/8.02 | 10.01/10.42 | 13.51/13.92 | 15.01/15.42 | 17.31/17.52 | 21.01/21.52 |
| Uniformaty | dB | 0.51/0.62 | 0.51/0.62 | 0.61/0.82 | 0.81/1.02 | 1.11/1.32 | 1.21/1.52 | 1.31/1.52 | 2.11/2.52 |
| Return Loss | dB | ≥55 | |||||||
| Directivity | dB | ≥55 | |||||||
| PDL | dB | ＜0.20 | ＜0.20 | ＜0.30 | ＜0.30 | ＜0.40 | ＜0.50 | ＜0.50 | ＜0.50 |
Enviroment Condition
| Operating Temperature | ℃ | -20～+70 |
| Storage Temperature | ℃ | -40～+85 |
| Operating humidity | %RH | ≤93 |
| Storage humidity | %RH | ≤93 |
Ordering Information
| FBT | XXX | XX | XX | XX | XX | XX |
| Configuration | Package | Fiber Type | Fiber Length | Input Connector | Output Connector | |
| FBT=Fused Coupler |
102=1x2 103=1x3 104=1x4 108=1x8 116=1x16 132=1x32 164=1x64 204=2x4 208=2x8 216=2x16 232=2x32 264=2x64 |
S1=￠3x54mm A0=90x20x10mm A1=100x80x10mm A2=120x80x18mm A3=140x114x18 L1=LGX Box R1=19″1U Rack X=Customized |
00=Bare Fiber 09=900um Loose tube 20=2.0mm 30=3.0mm |
05=0.5m 10=1.0m 15=1.5m X=Customized |
00=none LP=LC/UPC LA=LC/APC SP=SC/UPC SA=SC/APC FP=FC/UPC FA=FC/APC X=Customized |
00=none LP=LC/UPC LA=LC/APC SP=SC/UPC SA=SC/APC FP=FC/UPC FA=FC/APC X=Customized |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.