Chemical detection and laser wavelength stabilization employing spectroscopic absorption via laser compliance voltage sensing
US9236709B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
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Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods are disclosed that provide a direct indication of the presence and concentration of an analyte within the external cavity of a laser device that employ the compliance voltage across the laser device. The systems can provide stabilization of the laser wavelength. The systems and methods can obviate the need for an external optical detector, an external gas cell, or other sensing region and reduce the complexity and size of the sensing configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.