title: CRDS with a VECSEL for broad-band high sensitivity spectroscopy in the 2.3 μm window.
abstract: The integration of an industry ready packaged Sb-based Vertical-External-Cavity Surface-Emitting-Laser (VECSEL) into a Cavity Ring Down Spectrometer (CRDS) is presented. The instrument operates in the important 2.3 μm atmospheric transparency window and provides a high sensitivity (minimum detectable absorption of 9 × 10(-11) cm(-1)) over a wide spectra range. The VECSEL performances combine a large continuous tunability over 120 cm(-1) around 4300 cm(-1) together with a powerful (∼5 mW) TEM00 diffraction limited beam and linewidth at MHz level (for 1 ms of integration time). The achieved performances are illustrated by high sensitivity recordings of the very weak absorption spectrum of water vapor in the region. The developed method gives potential access to the 2-2.7 μm range for CRDS.
authors: University Grenoble Alpes, LIPhy, F-38000 Grenoble, France.
authors: P
authors: P
authors: Čermák
authors: IES, CNRS, UMR5214, University Montpellier, F-34000 Montpellier, France.
authors: B
authors: B
authors: Chomet
authors: Innoptics, Institut d'Optique d'Aquitaine Rue François Mitterrand, 33400 Talence, France.
authors: L
authors: L
authors: Ferrieres
authors: University Grenoble Alpes, LIPhy, F-38000 Grenoble, France.
authors: S
authors: S
authors: Vasilchenko
authors: University Grenoble Alpes, LIPhy, F-38000 Grenoble, France.
authors: D
authors: D
authors: Mondelain
authors: University Grenoble Alpes, LIPhy, F-38000 Grenoble, France.
authors: S
authors: S
authors: Kassi
authors: University Grenoble Alpes, LIPhy, F-38000 Grenoble, France.
authors: A
authors: A
authors: Campargue
authors: Innoptics, Institut d'Optique d'Aquitaine Rue François Mitterrand, 33400 Talence, France.
authors: S
authors: S
authors: Denet
authors: Innoptics, Institut d'Optique d'Aquitaine Rue François Mitterrand, 33400 Talence, France.
authors: V
authors: V
authors: Lecocq
authors: IES, CNRS, UMR5214, University Montpellier, F-34000 Montpellier, France.
authors: M
authors: M
authors: Myara
authors: IES, CNRS, UMR5214, University Montpellier, F-34000 Montpellier, France.
authors: L
authors: L
authors: Cerutti
authors: IES, CNRS, UMR5214, University Montpellier, F-34000 Montpellier, France.
authors: A
authors: A
authors: Garnache