The FBT Fused Biconic Taper Coupler is a very mature fiber optic passive device in the field of fiber optic communication CATV, fiber optic sensing. It distribute and combine optical power according to unequal ratios of 50/50, 55/45, 60/40, 65/35, 70/30, 75/25, 80/20, 85/15, 90/10, 95/5, 99/1. Commonly used 1×2 single window, double window, and triple window systems.



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