8 June 2006 Tilt correction for intracavity mirror of laser with an unstable resonator
Author Affiliations +
Proceedings Volume 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine; 60180K (2006) https://doi.org/10.1117/12.669284
Event: 5th International Workshop on Adaptive Optics for Industry and Medicine, 2005, Beijing, China
Abstract
The influence on outcoupled mode by introducing intracavity tilt-perturbation in confocal unstable resonator is analyzed. The intracavity mode properties and Zernike-aberration coefficient of intrcavity mirror's maladjustment are calculated theoretically. The experimental results about the relations of intracavity mirror maladjustment and the properties of mode aberration are presented by adopting Hartmann-Shack wavefront sensor. The results show that the intracavity perturbation of the concave mirror has more remarkable effect on outcoupled beam-quality than that of the convex mirror. For large Fresnel-number resonator, the tilt angle of intracavity mirror has a close linear relationship with extracavity Zernike tilt coefficient. The ratio of tilt aberration coefficient approaches to the magnification of unstable resonator if equivalent perturbation is applied to concave mirror and convex mirror respectively. Furthermore, astigmatism and defocus aberration also increase with the augment of tilt aberration of beam mode. So intracavity phase-corrected elements used in unstable resonator should be close to the concave mirror. Based these results, a set of automatic control system of intracavity tilt aberration is established and the aberration-corrected results are presented and analyzed in detail.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiang Zhang, Xiang Zhang, Bing Xu, Bing Xu, Wei Yang, Wei Yang, } "Tilt correction for intracavity mirror of laser with an unstable resonator", Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 60180K (8 June 2006); doi: 10.1117/12.669284; https://doi.org/10.1117/12.669284
PROCEEDINGS
10 PAGES


SHARE
Back to Top