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Photonics
Volume 10
Issue 2
10.3390/photonics10020221
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Review

Recent Advances and Outlook in Single-Cavity Dual Comb Lasers

by
Chenghong Zhang
1,†,
Fangrui Qu
1,†,
Peiwen Ou
1,†,
Haoqi Sun
1,
Shi He
1 and
Bo Fu
1,2,*
1
School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China
2
Key Laboratory of Big Data-Based Precision Medicine Ministry of Industry and Information Technology, School of Engineering Medicine, Beihang University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Photonics 2023, 10(2), 221; https://doi.org/10.3390/photonics10020221
Submission received: 20 January 2023 / Revised: 8 February 2023 / Accepted: 16 February 2023 / Published: 18 February 2023
(This article belongs to the Special Issue Mode Locked Fiber Laser)
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Abstract

Dual-comb spectroscopy as an emerging tool for spectral analysis has been investigated in a wide range of applications, including absorption spectroscopy, light detection and ranging, and nonlinear spectral imaging. Two mutually coherent combs facilitate high-precision, high-resolution, and broadband spectroscopy. Recently, dual combs generated from a single cavity have become compelling options for dual-comb spectroscopy, enabling huge simplification to measuring systems. Here, we review the progress of single-cavity dual comb lasers in recent years and summarize the distinctive advantages of single-cavity dual combs. First, the principles of optical frequency comb and dual-comb spectroscopy are introduced in time and frequency domains. Then, the implementation techniques and typical applications of single-cavity dual comb lasers are discussed, including directional multiplexing, wavelength multiplexing, polarization multiplexing, and space multiplexing. Finally, an outlook on the development of single-cavity dual combs is presented.
Keywords: lasers; single-cavity dual combs; dual-comb spectroscopy; mode-locked lasers lasers; single-cavity dual combs; dual-comb spectroscopy; mode-locked lasers

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MDPI and ACS Style

Zhang, C.; Qu, F.; Ou, P.; Sun, H.; He, S.; Fu, B. Recent Advances and Outlook in Single-Cavity Dual Comb Lasers. Photonics 2023, 10, 221. https://doi.org/10.3390/photonics10020221

AMA Style

Zhang C, Qu F, Ou P, Sun H, He S, Fu B. Recent Advances and Outlook in Single-Cavity Dual Comb Lasers. Photonics. 2023; 10(2):221. https://doi.org/10.3390/photonics10020221

Chicago/Turabian Style

Zhang, Chenghong, Fangrui Qu, Peiwen Ou, Haoqi Sun, Shi He, and Bo Fu. 2023. "Recent Advances and Outlook in Single-Cavity Dual Comb Lasers" Photonics 10, no. 2: 221. https://doi.org/10.3390/photonics10020221

APA Style

Zhang, C., Qu, F., Ou, P., Sun, H., He, S., & Fu, B. (2023). Recent Advances and Outlook in Single-Cavity Dual Comb Lasers. Photonics, 10(2), 221. https://doi.org/10.3390/photonics10020221

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