FBT COUPLER

T&S Communication coupler manufacturer provides 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 a coupling ration ranging from 1:99 to 50:50. Customized specifications are basically available. 

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. As a professional coupler factory, T&S provides various kinds of high-quality FBT couplers.

Features of FBT Coupler
Passed Telcordia GR-1221-CORE, and 85℃, 85％RH test up to 1500 hours

Low extra loss

Specifications of FBT Coupler

1×2 Single Mode Coupler(SMC)

1×2 Tap Coupler(WTC)

Three-Windows Couple(TWC)

1×N Monolithic Single Mode Couple(MSC)

Wavelength	nm		1310,1550,1310&1550
Bandwidth	nm		±20，±40
Coupling Ratio			50/50		40/60		20/80		10/90
Grade			P	S	P	S	P	S	P	S
Insertion Loss	dB	Max	3.4	3.6	4.4/2.6	4.6/2.8	7.5/1.2	8.0/1.3	11.0/0.65	12.0/0.8
Uniformity	dB	Max	0.5	0.7	/	/	/	/	/	/
PDL	dB	Max	0.15	0.2	0.2	0.25	0.2	0.25	0.2	0.3
Return Loss	dB		≥50
Operating Temperature	℃		-20～75

 

As a professional fiber optic products supplier, T&S provides various kinds of high-quality optical communications products.