title: Decreased oscillation threshold of a continuous-wave OPO using a semiconductor gain mirror.
abstract: We have constructed a singly resonant, continuous-wave optical parametric oscillator, where the signal beam resonates and is amplified by a semiconductor gain mirror. The gain mirror can significantly decrease the oscillation threshold compared to an identical system with conventional mirrors. The largest idler beam tuning range reached by changing the pump laser wavelength alone is from 3.6 to 4.7 µm. The single mode output power is limited but can be continuously scanned for at least 220 GHz by adding optical components in the oscillator cavity for increased stability.
authors: Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland.
authors: Mikael
authors: M
authors: Siltanen
authors: Tomi
authors: T
authors: Leinonen
authors: Lauri
authors: L
authors: Halonen
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D007834:Lasers; D008027:Light; D055096:Optical Devices; D009991:Oscillometry / Q000295:instrumentation*; D012666:Semiconductors / Q000295:instrumentation*