Broadband, Low-Crosstalk and Power-Efficient $32\times 32$ Optical Switch on a Dual-Layer Si3N4-on-SOI Platform

We demonstrate a
$32\times 32$
optical switch on a dual-layer Si
3
N
4
-on-SOI platform with low fiber-to-fiber insertion loss (9.61∼14.51 dB), low crosstalk (∼35 dB), broad 3-dB bandwidth (∼57 nm) and low power consumption (∼0.83 W). © 2022 The Author(s)