Brillouin gain spectral position control of claddings for tuning acousto-optic waveguides
US10312658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jun 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of fabricating an acousto-optic waveguide that includes a waveguide cladding surrounding an optical core is disclosed. The method comprises providing a wafer substrate; depositing an initial amount of a first material over an upper surface of the wafer substrate to form a partial cladding layer; depositing a second material over the partial cladding layer to form an optical layer; removing portions of the second material of the optical layer to expose portions of the partial cladding layer and form an optical core comprising the remaining second material; and depositing an additional amount of the first material over the optical core and the exposed portions of the partial cladding layer to form a full cladding layer that surrounds the optical core. A relative concentration of components of the first material is adjusted to provide Brillouin gain spectral position control of the waveguide cladding to tune the acousto-optic waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.