Rapid thermal sensors with high resolution based on an adaptive dual-comb system

作     者：Yi-zheng GUO Ming YAN Qiang HAO Kang-wen YANG Xu-ling SHEN He-ping ZENG 

作者机构：Shanghai Key Laboratory of Modem Optical System Engineering Research Center of Optical Instrument and System (Ministry of Education) School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai 200093 China State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 China 

出 版 物：《Frontiers of Information Technology & Electronic Engineering》 (信息与电子工程前沿（英文版）)

年 卷 期：2019年第20卷第5期

页      面：674-684页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0839[工学-网络空间安全] 08[工学] 0835[工学-软件工程] 0803[工学-光学工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Instrumentation Program (No. 2012YQ150092) the China Postdoctoral Science Foundation (No. 2015M581634) the National Natural Science Foundation of China (No. 11704253) the Shanghai Youth Science and Technology Talent Sailing Program (No. 17YF1413100) 

主　　题：Interferometers Fiber sensors Laser spectroscopy 

摘      要：We report a high-resolution rapid thermal sensing based on adaptive dual comb spectroscopy interrogated with a phase-shifted fiber Bragg grating(PFBG). In comparison with traditional dual-comb systems, adaptive dual-comb spectroscopy is extremely simplified by removing the requirement of strict phase-locking feedback loops from the dual-comb configuration. Instead, two free-running fiber lasers are adopted as the light sources. Because of good compensation of fast instabilities with adaptive techniques, the optical response of the PFBG is precisely characterized through a fast Fourier transform of the interferograms in the time domain. Single-shot acquisition can be accomplished rapidly within tens of milliseconds at a spectral resolution of 0.1 pm, corresponding to a thermal measurement resolution of 0.01 ℃. The optical spectral bandwidth of the measurement also exceeds 14 nm, which indicates a large dynamic temperature range. It shows great potential for thermal sensing in practical outdoor applications with a loose self-control scheme in the adaptive dual-comb system.