Device and method for post-fabrication trimming of an optical ring resonator using a dopant-based heater
US9946027B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device and method for post-fabrication trimming of an optical ring resonator using a dopant-based heater is provided. An optical ring resonator at the device can be heated using heaters in an optical slab from which the optical ring resonator extends, the heater including a non-uniform doping profile. A controller determines an initial resonance frequency and a target resonance frequency of the optical ring resonator. The controller applies predetermined electrical parameters to the heater using electrical connections to shift a resonance frequency of the optical ring resonator from the initial resonance frequency to the target resonance frequency by causing the dopant in the heater to migrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.