A Mirrored Test Method for Modular Multi-Core Fiber Fan-In/Fan-Out Device

In this paper, a Modular four-core fiber fan-in/fan- out device was prepared by using the double-clad fiber bundle tapered method. The LC/PC type connectors were prepared at the end of single-mode fiber and four-core fiber respectively to form a fan-in / fan-out module for easy to use in data center. In addition, a mirror test method is proposed for the modular device, which only requires an LC/PC connector mirror to measure the insertion loss and crosstalk. The maximum insertion loss and the maximum crosstalk were 0.84dB and -46.32dB respectively.