Cavity enhanced absorption spectroscopy using a piecewise tunable laser and hierarchical wavelength determination
US11092493B2 · kind B2 · utility
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4References
12Claims
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Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/423
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Improved cavity enhanced absorption spectroscopy is provided using a piecewise tunable laser by using a lookup table for laser tuning that is configured specifically for this application. In preferred embodiments this is done in combination with a laser control strategy that provides precise wavelength determination using cavity modes of the instrument as a reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.