High-speed multi-THz-range mode-hop-free tunable mid-IR laser spectrometer

Year: 2013

Authors: Courtois J., Bouchendira R., Cadoret M., Ricciardi I., Mosca S., De Rosa M., De Natale P., Zondy J.-J.

Autors Affiliation: Laboratoire Commun de Métrologie LNE-Cnam, 61 rue du Landy, 93210 La Plaine Saint Denis, France; INO–CNR, Istituto Nazionale di Ottica, Sezione di Napoli, and LENS, European Laboratory for Nonlinear Spectroscopy, Via Campi Flegrei 34, Pozzuoli (NA) I-80078, Italy

Abstract: We report on a widely (2.25 THz or 75 cm-1) and rapidly (4.5 THz/s) mode-hop-free (MHF) tunable mid-IR laser source at similar to 3.3 mu m, consisting of a 5%-MgO: LiNbO3 singly resonant optical parametric oscillator (SRO) pumped by an automated broadly MHF tunable extended-cavity diode laser (ECDL). The broad and rapid MHF tuning capability of the ECDL is readily transferred to the SRO idler wave owing to the quasi-noncritical pump spectral acceptance bandwidth of the quasi-phase-matching. Fast and broadband high-resolution Doppler spectroscopy measurements of the nu(3) band of CH4 are presented to illustrate the performance of the mid-IR optical parametric oscillator spectrometer. (C) 2013 Optical Society of America

Journal/Review: OPTICS LETTERS

Volume: 38 (11)      Pages from: 1972  to: 1974

More Information: The authors acknowledge partial support from a FP7-EURAMET grant (Contract No. ENV-06).
KeyWords: Doppler spectroscopy; Extended-cavity diode lasers; High resolution; Mid-IR laser sources; Mid-IR lasers; Quasi phase matching; Singly-resonant optical parametric oscillators; Tuning capability, Optical parametric oscillators, Spectrometers
DOI: 10.1364/OL.38.001972

Citations: 16
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