期刊
OPTICS AND LASER TECHNOLOGY
卷 141, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2021.107175
关键词
Dual-comb spectrometer; Fiber laser; Absorption spectroscopy; Back-propagation
资金
- National Natural Science Foundation of China (NSFC) [11804387, 11802339, 11805276, 11902358, 61805282, 61801498, 62075240]
- Scientific Researches Foundation of National University of Defense Technology [ZK18-03-22, ZK18-0103, ZK18-03-36]
- Science Fund for Distinguished Young Scholars of Hunan Province [2020JJ2036]
This study introduces an intelligent temporal alignment (ITA) algorithm for the signal processing of a free-running dual-comb spectrometer, achieving good alignment results in gas absorption lines.
Dual-comb spectrometer is demonstrated as a promising tool in atmospheric composition detection with extremely-high spectral resolution and fast scanning capability. In this paper, an intelligent temporal alignment (ITA) algorithm is proposed into signal processing of a free-running dual-comb spectrometer around 1.5 mu m. The signal processing in the algorithm only relies on the original interference sequence to complete the signal alignment without reference signal. As a result, the alignment of 12CO gas absorption line in the wavelength range of 1564-1570 nm is well retrieved in good agreement with HITRAN database. To the best of our knowledge, this paper proposes and implements for the first time the combination of the ITA algorithm and freerunning dual-comb spectroscopy. It lays a technical foundation for the intelligent analysis of arbitrary gas absorption spectral lines.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据