Yi-Chun Ling
Abstract: We demonstrate a 3D fan-in/fan-out device for multi-core fiber (MCF) integration with a SMF-28 fiber array by using ultrafast laser inscription (ULI). An automatic waveguide routing algorithm for ULI was utilized to maintain the same photonic path lengths while optimizing the waveguide bending radius and inter-distance for compact and low-loss optical fan-in/fan-out. The low propagation loss of 0.3 dB/cm and 0.16 dB/cm have been achieved for the two types of glasses.