Photon sources with multiple cavities for generation of individual photons
US10247969B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/1225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photon source device includes a substrate and a first waveguide arranged on the substrate. The first waveguide is coupled with a first pair of reflectors defining a first resonant cavity in the first waveguide. The first resonant cavity is configured for outputting a first output wavelength and a second output wavelength. The first pair of reflectors include a partial reflector for the first output wavelength and a partial reflector for the second output wavelength. The photon source device further includes a second pair of reflectors defining a second resonant cavity that intersects with the first resonant cavity. The second resonant cavity is configured for receiving an input wavelength distinct from the first and the second output wavelengths. A first reflector and a second reflector of the second pair of reflectors have a first reflectance and a second reflectance for the input wavelength, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.