Guided wave opto-acoustic device
US10025123B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 2015 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Dec 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/56
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The various technologies presented herein relate to various hybrid phononic-photonic waveguide structures that can exhibit nonlinear behavior associated with traveling-wave forward stimulated Brillouin scattering (forward-SBS). The various structures can simultaneously guide photons and phonons in a suspended membrane. By utilizing a suspended membrane, a substrate pathway can be eliminated for loss of phonons that suppresses SBS in conventional silicon-on-insulator (SOI) waveguides. Consequently, forward-SBS nonlinear susceptibilities are achievable at about 3000 times greater than achievable with a conventional waveguide system. Owing to the strong phonon-photon coupling achievable with the various embodiments, potential application for the various embodiments presented herein cover a range of radiofrequency (RF) and photonic signal processing applications. Further, the various embodiments presented herein are applicable to applications operating over a wide bandwidth, e.g. 100 MHz to 50 GHz or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.