title: Mid-infrared wavelength- and frequency-modulation spectroscopy with a pump-modulated singly-resonant optical parametric oscillator.
abstract: We describe the implementation of the wavelength- and frequency-modulation spectroscopy techniques using a singly-resonant optical parametric oscillator (OPO) pumped by a fiber-amplified diode laser. Frequency modulation of the diode laser was transferred to the OPO's mid-infrared idler output, avoiding the need for external modulation devices. This approach thus provides a means of implementing these important techniques with powerful, widely tunable, mid-infrared sources while retaining the simple, flexible modulation properties of diode lasers.
authors.forename: I D
authors.initials: ID
authors.lastname: Lindsay
authors.forename: P
authors.initials: P
authors.lastname: Groß
authors.forename: C J
authors.initials: CJ
authors.lastname: Lee
authors.forename: B
authors.initials: B
authors.lastname: Adhimoolam
authors.forename: K-J
authors.initials: KJ
authors.lastname: Boller