title: Picosecond synchronously pumped ZnGeP2 optical parametric oscillator.
abstract: We report on the experimental operation of a picosecond, singly resonant, synchronously pumped optical parametric oscillator (SPOPO) based on a ZnGeP(2) (ZGP) crystal. The ZGP SPOPO is pumped with the idler radiation from a diffraction-grating-tuned periodically poled lithium niobate SPOPO emitting a continuous picosecond pulse train (Delta tau approximately 8 ps, f=76 MHz). The noncritically 90 degree phase-matched ZGP SPOPO is tuned in the 3.8-5.6 microm range by tuning the pump wavelength (2.25-2.5 microm). As high as approximately 800 mW of average power is emitted at 4 microm.
authors.affiliation: ONERA the French Aerospace Lab, Chemin de la Hunière 91761 Palaiseau, France. jean-baptiste.dherbecourt@onera.fr
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Dherbecourt
authors.forename: Antoine
authors.initials: A
authors.lastname: Godard
authors.forename: Myriam
authors.initials: M
authors.lastname: Raybaut
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Melkonian
authors.forename: Michel
authors.initials: M
authors.lastname: Lefebvre