Core Selective Switch Supporting 15 Cores Per Port Using Bundled Three 5-Core Fibers

We prototyped a 15-core 1×8 core selective switch (CSS). The high core count CSS is achieved by bundling three 5-core fibers (5-CFs) and collimating/demultiplexing beams from the input bundled three 5-CFs using a single microlens. © 2022 The Authors