Quantum cascade laser (QCL) based gas sensing system and method
US9983126B2 · kind B2 · utility
3Cited by
16References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 6, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Feb 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method are disclosed for gas sensing over a wide tunable wavelength range provided by one or more quantum cascade lasers. A laser beam is generated within the wide tunable wavelength range, which is given by the sum of the wavelength ranges from the individual lasers. Gas sensing or detection is achieved by obtaining an infrared absorption spectrum for a sample contained in one or more cells having different path lengths for the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.