Cargando…

An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy

A dual-comb spectroscopy (DCS) system uses two phase-locked optical frequency combs with a slight difference in the repetition frequency. The spectrum can be sampled in the optical frequency (OF) domain and reproduces the characteristics in the radio frequency (RF) domain through asynchronous optica...

Descripción completa

Detalles Bibliográficos
Autores principales: Yang, Fu, Lu, Yanyu, Liu, Guibin, Huang, Shaowei, Chen, Dijun, Ying, Kang, Qi, Weiao, Zhou, Jiaqi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920923/
https://www.ncbi.nlm.nih.gov/pubmed/36772144
http://dx.doi.org/10.3390/s23031103
_version_ 1784887189491941376
author Yang, Fu
Lu, Yanyu
Liu, Guibin
Huang, Shaowei
Chen, Dijun
Ying, Kang
Qi, Weiao
Zhou, Jiaqi
author_facet Yang, Fu
Lu, Yanyu
Liu, Guibin
Huang, Shaowei
Chen, Dijun
Ying, Kang
Qi, Weiao
Zhou, Jiaqi
author_sort Yang, Fu
collection PubMed
description A dual-comb spectroscopy (DCS) system uses two phase-locked optical frequency combs with a slight difference in the repetition frequency. The spectrum can be sampled in the optical frequency (OF) domain and reproduces the characteristics in the radio frequency (RF) domain through asynchronous optical sampling. Therefore, the DCS system shows great advantages in achieving precision spectral measurement. During application, the question of how to reserve the mutual coherence between the two combs is the key issue affecting the application of the DCS system. This paper focuses on a software algorithm used to realize the mutual coherence of the two combs. Therefore, a pair of free-running large anomalous dispersion fiber combs, with a center wavelength of approximately 1064 nm, was used. After the signal process, the absorption spectra of multiple species were simultaneously obtained (simulated using the reflective spectra of narrow-bandwidth fiber Bragg gratings, abbreviated as FBG). The signal-to-noise ratio (SNR) could reach 13.97 dB (25) during the 100 ms sampling time. In this study, the feasibility of the system was first verified through the simulation system; then, a principal demonstration experiment was successfully executed. The whole system was connected by the optical fiber without additional phase-locking equipment, showing promise as a potential solution for the low-cost and practical application of DCS systems.
format Online
Article
Text
id pubmed-9920923
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-99209232023-02-12 An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy Yang, Fu Lu, Yanyu Liu, Guibin Huang, Shaowei Chen, Dijun Ying, Kang Qi, Weiao Zhou, Jiaqi Sensors (Basel) Article A dual-comb spectroscopy (DCS) system uses two phase-locked optical frequency combs with a slight difference in the repetition frequency. The spectrum can be sampled in the optical frequency (OF) domain and reproduces the characteristics in the radio frequency (RF) domain through asynchronous optical sampling. Therefore, the DCS system shows great advantages in achieving precision spectral measurement. During application, the question of how to reserve the mutual coherence between the two combs is the key issue affecting the application of the DCS system. This paper focuses on a software algorithm used to realize the mutual coherence of the two combs. Therefore, a pair of free-running large anomalous dispersion fiber combs, with a center wavelength of approximately 1064 nm, was used. After the signal process, the absorption spectra of multiple species were simultaneously obtained (simulated using the reflective spectra of narrow-bandwidth fiber Bragg gratings, abbreviated as FBG). The signal-to-noise ratio (SNR) could reach 13.97 dB (25) during the 100 ms sampling time. In this study, the feasibility of the system was first verified through the simulation system; then, a principal demonstration experiment was successfully executed. The whole system was connected by the optical fiber without additional phase-locking equipment, showing promise as a potential solution for the low-cost and practical application of DCS systems. MDPI 2023-01-18 /pmc/articles/PMC9920923/ /pubmed/36772144 http://dx.doi.org/10.3390/s23031103 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Fu
Lu, Yanyu
Liu, Guibin
Huang, Shaowei
Chen, Dijun
Ying, Kang
Qi, Weiao
Zhou, Jiaqi
An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title_full An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title_fullStr An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title_full_unstemmed An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title_short An Investigation of All Fiber Free-Running Dual-Comb Spectroscopy
title_sort investigation of all fiber free-running dual-comb spectroscopy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920923/
https://www.ncbi.nlm.nih.gov/pubmed/36772144
http://dx.doi.org/10.3390/s23031103
work_keys_str_mv AT yangfu aninvestigationofallfiberfreerunningdualcombspectroscopy
AT luyanyu aninvestigationofallfiberfreerunningdualcombspectroscopy
AT liuguibin aninvestigationofallfiberfreerunningdualcombspectroscopy
AT huangshaowei aninvestigationofallfiberfreerunningdualcombspectroscopy
AT chendijun aninvestigationofallfiberfreerunningdualcombspectroscopy
AT yingkang aninvestigationofallfiberfreerunningdualcombspectroscopy
AT qiweiao aninvestigationofallfiberfreerunningdualcombspectroscopy
AT zhoujiaqi aninvestigationofallfiberfreerunningdualcombspectroscopy
AT yangfu investigationofallfiberfreerunningdualcombspectroscopy
AT luyanyu investigationofallfiberfreerunningdualcombspectroscopy
AT liuguibin investigationofallfiberfreerunningdualcombspectroscopy
AT huangshaowei investigationofallfiberfreerunningdualcombspectroscopy
AT chendijun investigationofallfiberfreerunningdualcombspectroscopy
AT yingkang investigationofallfiberfreerunningdualcombspectroscopy
AT qiweiao investigationofallfiberfreerunningdualcombspectroscopy
AT zhoujiaqi investigationofallfiberfreerunningdualcombspectroscopy