Managing stability in spectroscopy measurement systems
US11422029B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/638
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Input light comprising an optical signal associated with a spectrum of at least a portion of the input light is received into an interferometer. Data comprising an image is provided using a detector array comprising detection elements. Output light is received from the interferometer into a set of one or more optical elements, which provide an optical interference pattern associated with an intensity of at least a portion of the output light that is distributed over a set of detection elements. Detection of the optical signal is stabilized based at least in part on the data using a control system comprising: a light-control module that controls a first feedback loop that stabilizes the portion of the output light; and/or a temperature-control module that controls a second feedback loop that stabilizes a temperature sensed by at least one temperature sensor within a thermal environment associated with the interferometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.