title: High power and efficient long wave IR ZnGeP2 parametric oscillator.
abstract: A high power, efficient, and tunable laser source in the 8-10 microm range, based on a ZnGeP(2) optical parametric oscillator (OPO) pumped by a hybrid 2.1 microm laser is demonstrated. The hybrid laser consists of a Q-switched Ho:YAG laser pumped by a 15 W CW thulium fiber laser. With 8.9 W of 2.1 microm pump power we obtained 0.95 W at 8 microm with an M(2)-value of 2.7 from an OPO with two walk-off compensating crystals.
authors.affiliation: FFI Norwegian Defence Research Establishment, Kjeller, Norway. Espen.Lippert@ffi.no
authors.forename: Espen
authors.initials: E
authors.lastname: Lippert
authors.forename: Gunnar
authors.initials: G
authors.lastname: Rustad
authors.forename: Gunnar
authors.initials: G
authors.lastname: Arisholm
authors.forename: Knut
authors.initials: K
authors.lastname: Stenersen
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005857:Germanium / Q000737:chemistry*; D007259:Infrared Rays; D053844:Lasers, Solid-State; D009991:Oscillometry / Q000295:instrumentation*; D010758:Phosphorus / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D005857:Germanium; D010758:Phosphorus; D015032:Zinc