(Peer-Reviewed) Silicon-integrated high-speed mode and polarization switch-and-selector
Yihang Dong 董异航 ¹, Yong Zhang 张永 ¹, Jian Shen 沈健 ¹, Zihan Xu 徐子涵 ¹, Xihua Zou 邹喜华 ², Yikai Su 苏翼凯 ¹
¹ State Key Lab of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
中国 上海 上海交通大学电子工程系 新型光通信系统国家重点实验室
² Center for Information Photonics and Communications, School of Information Science and Technology, Southwest Jiao Tong University, Chengdu 611756, China
中国 成都 西南交通大学信息科学与技术学院 信息光子与通信研究中心
Abstract
On-chip optical communications are growingly aiming at multimode operation together with mode-division multiplexing to further increase the transmission capacity. Optical switches, which are capable of optical signals switching at the nodes, play a key role in optical networks.
We demonstrate a 2 × 2 electro-optic Mach–Zehnder interferometer-based mode- and polarization-selective switch fabricated by standard complementary metal–oxide–semiconductor process. An electro optic tuner based on a PN-doped junction in one of the Mach–Zehnder interferometer arms enables dynamic switching in 11 ns. For all the channels, the overall insertion losses and inter-modal crosstalk values are below 9.03 and –15.86 dB at 1550 nm, respectively.
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