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- Schilt, Stephane, et al.
(författare)
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Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications
- 2010
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Ingår i: Applied Physics B: Lasers and Optics. - 0946-2171. ; 100:2, s. 321-329
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Tidskriftsartikel (refereegranskat)abstract
- An extensive characterization of the spectral properties of a largely tunable laser in the 1.56-μm spectral range is reported. This device combines a vertical-cavity surface-emitting laser (VCSEL) with a micro-machined (MEMS) Bragg mirror in a very compact arrangement. The large tunability obtained by an electro-thermal actuation of the MEMS mirror makes this device very attractive for high-resolution spectroscopy. Relevant laser parameters for the implementation of wavelength modulation spectroscopy techniques in gas sensing, such as tuning and modulation properties, are presented. A preliminary gas spectroscopy experiment performed with this laser is also shown.
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