title: Mid-infrared optical parametric amplifier based on a LGSe crystal and pumped at 1.6 μm.
abstract: We demonstrate the generation of 22.6 μJ of combined energy at 3 μm for sub-300fs pulses at a repetition rate of 1 kHz using a LGSe optical parametric amplifier (OPA). The LGSe OPA is pumped by the 140-fs 1.6 μm pulses from a 300-mW KTA optical parametric chirped pulse amplifier (OPCPA) based on an all-optical synchronization scheme. By using a highly-nonlinear fiber, the output of an erbium-doped fiber laser operating at 1560 nm is shifted to 1050 nm in order to coherently seed a Nd:YLF regenerative amplifier. The LGSe OPA is seeded using the MIR coming from the amplification of the 1.6 μm in the OPCPA.
authors.affiliation: Department of Chemistry, University of Toronto, Toronto, Ontario, Canada.
authors.forename: Etienne
authors.initials: E
authors.lastname: Pelletier
authors.forename: Alexander
authors.initials: A
authors.lastname: Sell
authors.forename: Alfred
authors.initials: A
authors.lastname: Leitenstorfer
authors.forename: R J Dwayne
authors.initials: RJ
authors.lastname: Miller
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D004871:Erbium / Q000737:chemistry; D005708:Gallium / Q000737:chemistry; D007259:Infrared Rays; D053844:Lasers, Solid-State; D008094:Lithium / Q000737:chemistry; D017711:Nonlinear Dynamics; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods*; D012643:Selenium / Q000737:chemistry
chemical_list: D004871:Erbium; D008094:Lithium; D005708:Gallium; D012643:Selenium