Novel fiber bragg grating sensing method based on the sidelobe modulation for ultrasound detection

• Main Authors: Liang, Sheng, Tjin, Swee Chuan, Lin, Bo, Sheng, Xinzhi, Lou, Shuqin, Zhang, Yongxin, Wang, Xin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Fiber Bragg Grating (FBG); Fiber-optic Sensor
• Online Access: https://hdl.handle.net/10356/141287
• Institution: Nanyang Technological University

This contribution demonstrates the interaction between the fiber Bragg grating (FBG) and the ultrasound. When the grating length is much longer than the ultrasonic wavelength, the conventional wavelength-modulation method is invalid. In order to find out an effective sensing method, in this case, a...