Analysis of 4×4 non-blocking optical switch using seven-staged 2×2 multi-mode interference photonic switches with partial index-modulation regions (MIPS-P)

摘要

We proposed multi-mode interference photonic switches with partial index-modulation regions (MIPS-P) as a multi-port type optical switch, and switching characteristics of 3×3 and 4×4 MIPS-Ps have been analyzed. Two types of MIPS-Ps with current-confinement structures have also been investigated in order to improve the switching characteristic. In this paper, we show the analytical results of the switching characteristics of 4×4 non-blocking optical switch with seven-staged 2×2 MIPS-Ps using wide-angle finite-difference beam propagation method (WA-FD-BPM).