Simultaneous distance and velocity measurement based on a bidirectional chirped fiber Bragg grating (CFBG)

Zhen Lei; Dan Zhu; Bowen Zhang; Zhongyang Xu; Tao Zhou; Xin Zhong; Zhiyu Chen; Shilong Pan

doi:10.1117/12.2575000

10 October 2020 Simultaneous distance and velocity measurement based on a bidirectional chirped fiber Bragg grating (CFBG)

Zhen Lei, Dan Zhu, Bowen Zhang, Zhongyang Xu, Tao Zhou, Xin Zhong, Zhiyu Chen, Shilong Pan

Author Affiliations +

Proceedings Volume 11555, Real-time Photonic Measurements, Data Management, and Processing V; 115550F (2020) https://doi.org/10.1117/12.2575000
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

The simultaneous distance and velocity measurement system based on a bidirectional chirped fiber Bragg grating (CFBG) is proposed. By using the bidirectional CFBG, a dual-chirp optical signal with large bandwidth is generated. After the dechirp processing in the optical domain, both the distance and velocity information can be obtained simultaneously. A simulation is carried out. A dual-chirp optical signal with a bandwidth of 0.208 THz is generated. The simultaneous distance and velocity measurement is achieved, with the ranging resolution of 0.9 mm and the velocity resolution of 0.058 km/s, respectively.

Conference Presentation

Citation Download Citation

Zhen Lei, Dan Zhu, Bowen Zhang, Zhongyang Xu, Tao Zhou, Xin Zhong, Zhiyu Chen, and Shilong Pan "Simultaneous distance and velocity measurement based on a bidirectional chirped fiber Bragg grating (CFBG)", Proc. SPIE 11555, Real-time Photonic Measurements, Data Management, and Processing V, 115550F (10 October 2020); https://doi.org/10.1117/12.2575000

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