Spectral and modulation properties of a largely tunable MEMS-VCSEL in view of gas phase spectroscopy applications
Artikel i vetenskaplig tidskrift, 2010

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.


Stephane Schilt

Karolina Zogal

Benjamin Kögel

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Peter Meissner

Markus Maute

Rui Protasio

M. C. Amann

Applied Physics B: Lasers and Optics

0946-2171 (ISSN)

Vol. 100 2 321-329



Analytisk kemi

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