FBT Coupler

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, KBAN provides various kinds of high-quality FBT couplers.

KBAN FBT coupler offers low insertion loss, low polarization dependence and excellent environmental stability. Accurate coupling ratio from 50/50 to 1/99 and fiber type 250μm bare fiber, 3mm and 900μm loose tube fiber are available with very tight uniformity. Singlemode standard coupler and wideband coupler components find extensive application to perform power splitting and monitoring functions in all kinds of optical communication systems.

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FBT Coupler Specification Download

Features of PLC Splitter

Broadband Operation Wavelength
Low Insertion loss
Low PDL
Compact Design
Good channel-to-channel uniformity
High Reliability and Stability
Pass Telcordia GR-1209-Core Reliability Test
Pass Telcordia GR-1221-Core Reliability Test
RoHS Compliance

Applications of PLC Splitter

Telecommunication sector
PON System
FTTH
CATV
Video Transmission

Specifications of PLC Splitter

Item		Unit	Parameter
Operating Wavelength		(nm)	1260 ~ 1650
1×N PLC Splitter		—	1×2	1×4	1×8	1×16	1×32	1×64	1×128
Insertion Loss	MAX(P/S)	(dB)	3.8/4.0	7.0/7.4	10.5/10.7	13.6/13.9	16.6/16.9	21/21.5	24/24.5
Uniformity	MAX(P/S)	(dB)	0.6/0.6	0.6/0.7	0.8/1.0	0.9/1.2	1.2/1.4	1.7/1.9	2.2/2.5
Return Loss	MIN	(dB)	55
PDL	MAX(P/S)	(dB)	0.15/0.25	0.15/0.25	0.2/0.25	0.2/0.3	0.25/0.3	0.25/0.35	0.4/0.45
2×N PLC Splitter		—	2×2	2×4	2×8	2×16	2×32	2×64	—
Insertion Loss	MAX(P/S)	(dB)	4.0/4.3	7.4/7.6	10.7/11.0	14/14.5	17.5/18	21.4/21.9	—
Uniformity	MAX(P/S)	(dB)	0.9/1.1	1.0/1.2	1.0/1.2	1.2/1.5	1.5/1.8	2.0/2.3	—
Return Loss	MIN	(dB)	55
PDL	MAX(P/S)	(dB)	0.25/0.3	0.25/0.3	0.25/0.3	0.3/0.35	0.3/0.35	0.35/0.4	—
Fiber Type		—	ITU-T G657A1 , G657A2
Temperature Stability(-40~85℃)	MAX	(dB)	0.5( Typical 0.3 )
Operating Temperature		(℃)	-40 ~ 85
Storage Temperature		(℃)	-40 ~ 85