Photonic integrated circuit microchip design of two-wave mixing interferometer for FBG acoustic emission sensor signal demodulation

Hao Wang; Chuanyi Tao; Yubing Liu; Yiran Wu; Cheng Feng; Zhengquan Qian; Jianjun Xiao; Yan Zhao; Jingke Li

doi:10.1117/12.2642069

20 December 2022 Photonic integrated circuit microchip design of two-wave mixing interferometer for FBG acoustic emission sensor signal demodulation

Hao Wang, Chuanyi Tao, Yubing Liu, Yiran Wu, Cheng Feng, Zhengquan Qian, Jianjun Xiao, Yan Zhao, Jingke Li

Author Affiliations +

Proceedings Volume 12314, Optoelectronic Devices and Integration XI; 1231407 (2022) https://doi.org/10.1117/12.2642069
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

A photonic integrated adaptive two-wave mixing (TWM) interferometer is designed for demodulation of FBG acoustic emission sensor signals, whose various optical elements are integrated in a substrate material with photorefractive properties. A ridge waveguide based on InP:Fe is designed. Each component of the photonic integrated TWM interferometer is analyzed and optimized to minimize the loss of light in the transmission of the TWM interferometer and obtain the best demodulation performance. The feasibility of the optimized structure of the photonic integrated adaptive TWM interferometer is verified in theory, and the optimized structure will contribute to the miniaturization and integration of the TWM demodulation system based on InP:Fe.

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Hao Wang, Chuanyi Tao, Yubing Liu, Yiran Wu, Cheng Feng, Zhengquan Qian, Jianjun Xiao, Yan Zhao, and Jingke Li "Photonic integrated circuit microchip design of two-wave mixing interferometer for FBG acoustic emission sensor signal demodulation", Proc. SPIE 12314, Optoelectronic Devices and Integration XI, 1231407 (20 December 2022); https://doi.org/10.1117/12.2642069

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