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Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications

Stephane Schilt ; Karolina Zogal ; Benjamin Kögel (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Peter Meissner ; Markus Maute ; Rui Protasio ; Markus-Christian Amann
Applied Physics B: Lasers and Optics (0946-2171). Vol. 100 (2010), 2, p. 321-329.
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2010-11-25. Senast ändrad 2013-10-29.
CPL Pubid: 129573

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik

Ämnesområden

Spektroskopi
Fotonik

Chalmers infrastruktur