Feedthrough rejection for optomechanical devices
US11408912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Aug 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5607
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optomechanical device for producing and detecting optical signals comprising a proof mass assembly, one or more laser devices, and a circuit. The one or more laser devices are configured to generate a first optical signal and a second optical signal. The circuit is configured to modulate, with an electro-optic modulator (EOM), the second optical signal, output the first optical signal and the second optical signal to the proof mass assembly, generate a filtered optical signal corresponding to a response by the proof mass assembly to the first optical signal without the second optical signal, and generate an electrical signal based on the filtered optical signal, wherein the EOM modulates the second optical signal based on the electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.