Patent · US Active

Photoacoustic gas detector

US8359904B2 · kind B2 · utility

9Cited by

3References

13Claims

0Family size

Assignees

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
THALES · FR

Inventors

Sergio Nicoletti · Le Pont-de-Claix, FR
Philippe Andreucci · Moirans, FR
Mickael Brun · Eybens, FR
Serge Gidon · La Murette, FR
Xavier Marcadet · Palaiseau, FR
Mathieu Carras · Gentilly, FR

Key dates

Filing date	Oct 21, 2010
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Aug 10, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/1708
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A photoacoustic detection device including a nanophotonic circuit including a plurality of semiconductor lasers capable of emitting a different frequencies; input couplers connected to optical waveguides; a multiplexer; an output optical waveguide, emerging into a recess; a tuning fork having its free arms arranged at the output of the output optical waveguide; and means for detecting the vibration of the tuning fork, all these elements being assembled in a monolithic component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.