Second harmonic generation in resonant optical structures
US9865987B1 · kind B1 · utility
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2References
22Claims
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Key dates
| Filing date | Jun 5, 2017 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jun 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3546
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.