Application of static phase control elements to high-power solid state lasers

Thomas H. Bett; Andrew R. Barnes; N. W. Hopps; Mohammad R. Taghizadeh; Andrew J. Waddie; P. Rudman; M. Thompson

doi:10.1117/12.424672

24 April 2001 Application of static phase control elements to high-power solid state lasers

Thomas H. Bett, Andrew R. Barnes, N. W. Hopps, Mohammad R. Taghizadeh, Andrew J. Waddie, P. Rudman, M. Thompson

Proceedings Volume 4270, Laser Resonators IV; (2001) https://doi.org/10.1117/12.424672
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

We describe development of passive phase correction elements to compensate for static phase errors and prompt thermally induced aberrations in the reconfigured HELEN laser. Partial compensation of cooling effects is also included in the design. Phase elements have been fabricated through lithographic processes using amplitude masks. The masks were generated from measured laser wavefronts. The phase profiles have been measured experimentally and the effect on the HELEN laser wavefront and far field intensity distribution have been calculated by combining these phase profiles with the measured laser wavefronts. The calculations show improvements in Strehl ratio from a factor of 2 up to a factor of 7 depending on the configuration.

Citation Download Citation

Thomas H. Bett, Andrew R. Barnes, N. W. Hopps, Mohammad R. Taghizadeh, Andrew J. Waddie, P. Rudman, and M. Thompson "Application of static phase control elements to high-power solid state lasers", Proc. SPIE 4270, Laser Resonators IV, (24 April 2001); https://doi.org/10.1117/12.424672

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