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Second harmonic generation in resonant optical structures

United States Patent

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9,865,987
January 9, 2018
View the Complete Patent at the US Patent & Trademark Office
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.
15/614,105
June 5, 2017
1/1;
H01S 3/108 (20060101); H05K 3/00 (20060101); G02F 1/355 (20060101); C03C 14/00 (20060101); G02F 1/35 (20060101); G02F 1/37 (20060101); H01S 3/109 (20060101);
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.