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The fbt fiber optic splitter uses the traditional fused biconical process to disturb two (or more) coated optical fibers in a certain way, melt under high temperature heating, stretch to both sides at the same time, and finally form a special waveguide structure in the form of double cone in the heating zone.

1310/1550 FBT WDM Based on the technology of fused tapering, PHX can provide low loss, high-reliability wavelength split multiplexers (WDM), which can pass the reliability test standard of Telcordia GR1221. Wavelength-division multiplex couplers can provide common working wavelengths, such as 980/1550nm, 1480/1550nm, 1310/1550nm, etc., used in fiber amplifiers and communication equipment.

Wide Band Coupler is also know as wideband directional coupler, which is built to split the optical power or wavelength through Fused Biconic Taper (FBT coupler) technique. The operating bandwidth of 1x2 or 2x2 Wide Band Coupler coupler is ±40nm.