[CThA6D] Comb Metrology II

[CThA6D-01] Shape sensing based on dual-comb demodulation of a fiber Bragg grating sensing array

Jianjun Yang¹, *Jiansheng Liu¹, Baorui Yu¹, Minghui Ma¹, Jingyuan Hu¹, Hongfeng Shao², Xin Zhao¹, Zheng Zheng^1,3 (1. School of Electronic and Information Engineering, Beihang University (China), 2. School of Instrumentation and Optoelectron, Beihang University, Beijing (China), 3. Shenzhen Institute of Beihang University, Shenzhen, Guangdong (China))

[Presentation Style] Online

A shape sensing system with 3.85 mm measurement error over a range of 490 mm based on the single-cavity dual-comb spectroscopy technology and a dense all-identical fiber Bragg grating (FBG) sensor array is demonstrated.