Low-Loss Fan-In/Fan-Out Device for 8-Core Fiber

In this paper we report the design, fabrication and measurement of a novel 8-core FiFo device using fused tapering method and trench-assisted bridge fiber. The device is constitutive of 8-core fiber, tapered bridge fiber bundle and single-mode fibers. The minimum and maximum insertion loss of the Fi/Fo device are 0.25 dB and 0.98 dB, respectively.