Novel method of solid state laser thermal lens intracavity correction by a modal liquid crystal adaptive lens with optical control

Igor R. Guralnik; I. V. Sozinova

doi:10.1117/12.417714

2 March 2001 Novel method of solid state laser thermal lens intracavity correction by a modal liquid crystal adaptive lens with optical control

Igor R. Guralnik, I. V. Sozinova

Author Affiliations +

Proceedings Volume 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control; (2001) https://doi.org/10.1117/12.417714
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

We suggest a new way to compensate for the thermal lensing effect in the mid-power solid-state lasers. This can be done by the use of a liquid-crystal adaptive lens with optically controlled focal length (optically addressed lens -- OAL) which is a modification of the modal liquid crystal lens (MLCL) which has recently been suggested and successfully implemented. The phase shift introduced by OAL into the transmitted light wave is theoretically shown to correspond to a converging lens whose focal length depends on the light intensity distribution across the aperture. OAL implements an intra-cavity optical feedback, which can effectively compensate for the laser beam defocus resulted from the emerging thermal lensing. For various types of resonators the beam stability is improved by the use of OAL. Correction becomes more effective if the OAL is positioned close to the laser rod.

Citation Download Citation

Igor R. Guralnik and I. V. Sozinova "Novel method of solid state laser thermal lens intracavity correction by a modal liquid crystal adaptive lens with optical control", Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); https://doi.org/10.1117/12.417714

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE