title: High-speed multi-THz-range mode-hop-free tunable mid-IR laser spectrometer.
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 ~3.3 μm, consisting of a 5%-MgO:LiNbO(3) 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 ν(3) band of CH(4) are presented to illustrate the performance of the mid-IR optical parametric oscillator spectrometer.
authors.affiliation: Laboratoire Commun de Métrologie LNE-Cnam, 61 rue du Landy, 93210 La Plaine Saint Denis, France.
authors.forename: Jérémie
authors.initials: J
authors.lastname: Courtois
authors.forename: Rym
authors.initials: R
authors.lastname: Bouchendira
authors.forename: Malo
authors.initials: M
authors.lastname: Cadoret
authors.forename: Iolanda
authors.initials: I
authors.lastname: Ricciardi
authors.forename: Simona
authors.initials: S
authors.lastname: Mosca
authors.forename: Maurizio
authors.initials: M
authors.lastname: De Rosa
authors.forename: Paolo
authors.initials: P
authors.lastname: De Natale
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Zondy