Abstract
A polarization-insensitive waveguide crossing based on multimode interference (MMI) couplers is proposed and demonstrated on a silicon-on-insulator (SOI) platform. By utilizing two orthogonal MMIs, the footprint of the device is about . The proposed device, easily fabricated with only one fully etched step, is characterized with low insertion losses and low crosstalks for both transverse-electric and transverse-magnetic polarizations from 1520 to 1610 nm bands.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Ruoran Liu, Weike Zhao, Zejie Yu, and Daoxin Dai
Opt. Lett. 49(9) 2517-2520 (2024)
Zejie Yu, Aosong Feng, Xiang Xi, and Xiankai Sun
Opt. Lett. 44(1) 77-80 (2019)
Hongnan Xu and Yaocheng Shi
Opt. Lett. 41(22) 5381-5384 (2016)