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Double lens device for tunable harmonic generation of laser beams in KBBF/RBBF crystals or other non-linear optic materials

United States Patent

9,740,081
August 22, 2017
View the Complete Patent at the US Patent & Trademark Office
A method and apparatus to generate harmonically related laser wavelengths includes a pair of lenses at opposing faces of a non-linear optical material. The lenses are configured to promote incoming and outgoing beams to be normal to each outer lens surface over a range of acceptance angles of the incoming laser beam. This reduces reflection loss for higher efficiency operation. Additionally, the lenses allow a wider range of wavelengths for lasers for more universal application. Examples of the lenses include plano-cylindrical and plano-spherical form factors.
Kaminski; Adam (Ames, IA)
Iowa State Research Foundation, Inc. (Ames, IA)
14/ 627,925
February 20, 2015
GRANT REFERENCE This invention was made with government support under Contract No. DE-AC02-07CH11358 awarded by U.S. Department of Energy. The government has certain rights in the invention.