Recovering spectral shape from spatial output
US10288483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2017 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is performed for estimating the optical spectrum of a light beam. The method includes: projecting the light beam onto distinct spatial areas of a spectrometer, wherein each spatial area receives a different filtered version of the optical spectrum; detecting a characteristic of the projected light beam at each of the distinct spatial areas of the spectrometer; receiving a two-dimensional matrix in which each entry of the matrix provides a relationship between one or more spatial areas and each spectral feature, wherein the two-dimensional matrix is related to the input-output relationship of the spectrometer; and estimating the optical spectrum of the light beam based on an analysis that uses both the detected light beam characteristics and the received two-dimensional matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.