Symmetric multiplexing 2×2 guideway optical switch based on phase change material

Tao Ge; Beiyu Zhang; Qiucheng Zhao; Yuanshuai Lv; Guiju Zhang

doi:10.1117/12.2614151

15 October 2021 Symmetric multiplexing 2×2 guideway optical switch based on phase change material

Tao Ge, Beiyu Zhang, Qiucheng Zhao, Yuanshuai Lv, Guiju Zhang

Proceedings Volume 11933, 2021 International Conference on Neural Networks, Information and Communication Engineering; 1193312 (2021) https://doi.org/10.1117/12.2614151
Event: 2021 International Conference on Neural Networks, Information and Communication Engineering, 2021, Qingdao, China

Abstract

Ge-Sb-Se-Te (GSST) based phase change material is an important alternative material for waveguide optical switch. We demonstrate a symmetric multiplexing 2×2 switch based on Ge-Sb-Se-Te and analyze the optical switch transmission and electro-thermal consumption characteristics at conventional wavelength from 1530nm to 1565nm. The maximum extinction ratio of 20.30dB and the insertion losses of 0.92dB are obtained for the amorphous state of the phase change material, 18.40dB and 1.59dB respectively for the crystallized state. The amorphous transition time and consumption energy are 5.2μs and 159.1nJ, and the corresponding values are 1.58μs and 72.1nJ for the crystallized transition. The methods of FDTD solutions and COMSOL Multiphysics are used to build the structure model and simulate the switching transition properties.

Citation Download Citation

Tao Ge, Beiyu Zhang, Qiucheng Zhao, Yuanshuai Lv, and Guiju Zhang "Symmetric multiplexing 2×2 guideway optical switch based on phase change material", Proc. SPIE 11933, 2021 International Conference on Neural Networks, Information and Communication Engineering, 1193312 (15 October 2021); https://doi.org/10.1117/12.2614151

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KEYWORDS

Optical switching

Switches

Waveguides

Crystals

Silicon

Electro optical modeling

Multiplexing

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