Resonant Coupling of Hermite-Gaussian Transverse Modes in the Triangular Cavity of a Cavity Ring-down Spectroscope

doi:10.3390/photonics9090595

CIOMP OpenIR

	Resonant Coupling of Hermite-Gaussian Transverse Modes in the Triangular Cavity of a Cavity Ring-down Spectroscope
	Y. J. Ren; C. X. Yan; X. M. Zhang and C. H. Hu
	2022
Source Publication	Photonics
Volume	9 Issue:9 Pages:17
Abstract	During resonance in resonant cavities, such as those used in laser or cavity ring-down spectroscopes (CRDS), resonant coupling between higher-order transverse modes and fundamental modes can seriously affect the quality of the beam and introduce measurement errors. Several coupling models, such as thermal deformation coupling and scattering coupling, have been established according to existing coupling theory and specific application scenarios; however, these coupling models have not been attributed to a unified theory. In this paper, we reveal that the same resonant coupling excitation factors exist under different types of environmental perturbation. The conditions and range of resonant coupling in a CRDS ring-down cavity are systematically analyzed, and a preferential coupling model of the middle-order modes is proposed. The time-domain characteristics of the CRDS are used in experiments to analyze the resonant coupling between the modes in a weak energy system. The order and coupling range of the middle-order modes involved in resonant coupling are verified using the modal filtering characteristics of the triangular cavity; this paper presents a unified explanation for various types of resonant coupling and also provides a new approach to resonant coupling experiments performed in high-finesse resonant cavities.
DOI	10.3390/photonics9090595
URL	查看原文
Indexed By	sci
Language	英语
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/67053
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	Y. J. Ren,C. X. Yan,X. M. Zhang and C. H. Hu. Resonant Coupling of Hermite-Gaussian Transverse Modes in the Triangular Cavity of a Cavity Ring-down Spectroscope[J]. Photonics,2022,9(9):17.
APA	Y. J. Ren,C. X. Yan,&X. M. Zhang and C. H. Hu.(2022).Resonant Coupling of Hermite-Gaussian Transverse Modes in the Triangular Cavity of a Cavity Ring-down Spectroscope.Photonics,9(9),17.
MLA	Y. J. Ren,et al."Resonant Coupling of Hermite-Gaussian Transverse Modes in the Triangular Cavity of a Cavity Ring-down Spectroscope".Photonics 9.9(2022):17.

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中国科学院长春光学精密机械与物理研究所