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Second harmonic generation in resonant optical structures

United States Patent

9,865,987
January 9, 2018
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An optical second-harmonic generator (or spontaneous parametric down-converter) includes a microresonator formed of a nonlinear optical medium. The microresonator supports at least two modes that can be phase matched at different frequencies so that light can be converted between them: A first resonant mode having substantially radial polarization and a second resonant mode having substantially vertical polarization. The first and second modes have the same radial order. The thickness of the nonlinear medium is less than one-half the pump wavelength within the medium.
Eichenfield; Matt (Albuquerque, NM), Moore; Jeremy (Albuquerque, NM), Friedmann; Thomas A. (Albuquerque, NM), Olsson; Roy H. (Arlington, VA), Wiwi; Michael (Albuquerque, NM), Padilla; Camille (Albuquerque, NM), Douglas; James Kenneth (Albuquerque, NM), Hattar; Khalid Mikhiel (Albuquerque, NM)
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
15/ 614,105
June 5, 2017
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.