Abstract

The compact, high-speed, low-power consumption Mach–Zehnder interferometer (MZI)-type optical switch using thermo-optical effect is a key device in future optical integrated circuits. In this study, we achieved ultra-high-speed switching operation of 0.4 μs and low electrical power operation of 23 mW with a small device footprint by loading an asymmetric doped MZI structure and an integrated heat sink. This optical switch can be fabricated in the standard manufacturing process of silicon photonic devices, has high practicality and will be a useful tool in various optical integrated circuits.

Compact thermo-optic MZI switch in silicon-on-insulator using direct carrier injection

Manuel Mendez-Astudillo, Masaki Okamoto, Yoshiaki Ito, and Tomohiro Kita
Opt. Express 27(2) 899-906 (2019)

Performance-enhanced silicon thermo-optic Mach–Zehnder switch using laterally supported suspended phase arms and efficient electrodes

Kai Chen, Fei Duan, and Yonglin Yu
Opt. Lett. 44(4) 951-954 (2019)

Two-dimensional design and analysis of trench-coupler based Silicon Mach-Zehnder thermo-optic switch

Ke Liu, Chenglong Zhang, Sixuan Mu, Shuang Wang, and Volker J. Sorger
Opt. Express 24(14) 15845-15853 (2016)

Fast thermo-optical modulators with doped-silicon heaters operating at 2 μm

Chuyu Zhong, Hui Ma, Chunlei Sun, Maoliang Wei, Yuting Ye, Bo Tang, Peng Zhang, Ruonan Liu, Junying Li, Lan Li, and Hongtao Lin
Opt. Express 29(15) 23508-23516 (2021)

Graphene-embedded first-order mode polymer Mach–Zender interferometer thermo-optic switch with low power consumption

Jiawen Lv, Yue Yang, Baizhu Lin, Yue Cao, Yongbo Zhang, Shuai Li, Yunji Yi, Fei Wang, and Daming Zhang
Opt. Lett. 44(18) 4606-4609 (2019)