Cavity gain drop caused by revisited Gouy phase

Xing Liu; Xinyi Lu; Qili Tian; Lixin Yan

doi:10.1117/12.2690180

17 August 2023 Cavity gain drop caused by revisited Gouy phase

Xing Liu, Xinyi Lu, Qili Tian, Lixin Yan

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 1275739 (2023) https://doi.org/10.1117/12.2690180
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

High-power optical enhancement cavity is widely used in precision optical experiments and metrology. The absorption of cavity mirrors leads to the distortions of the mirror surface. Thermal deformation in a high-power optical enhancement cavity leads to a decrease in cavity gain due to alterations in the Gouy phase. In this paper, we establish the analytical relationship between mirror deformation and cavity gain by using the Winkler deformation model. The deformation exhibits an inverse proportionality to the square of the finesse. This significant result confirms the great sensitivity of gain to deformation in a cavity with high finesse.

Citation Download Citation

Xing Liu, Xinyi Lu, Qili Tian, and Lixin Yan "Cavity gain drop caused by revisited Gouy phase", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 1275739 (17 August 2023); https://doi.org/10.1117/12.2690180

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