Chemical detection and laser wavelength stabilization employing spectroscopic absorption via laser compliance voltage sensing
US8675696B2 · kind B2 · utility
2Cited by
2References
22Claims
0Family size
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Key dates
| Filing date | Aug 3, 2012 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 3, 2032 |
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.