Journal of the Optical Society of America B · 1993 · 118 citations · 20 references
Natural SciencesMaterials SciencePhysicsElectronic MaterialsOptical MaterialsOpticsInfrared Optical MaterialsLaser Host MaterialsLaser OpticsLaser PhysicsNonlinear OpticsSemiconductor LasersGas LasersInfrared Nonlinear Optical MaterialsInfrared Optical CrystalsLaser TuningPhase MatchingPower OutputQuantum EfficiencyTuning Range
Traveling-wave parametric generators with angular tuning with the use of ZnGeP2 and GaSe crystals pumped by 100-ps pulses from an actively mode-locked Er laser (λ ≈ 3 μm) are reported. The continuous-tuning range achieved was 4–10 μm (ZnGeP2; length, 12 mm) and 3.5–18 μm (GaSe; length, 12 mm) in a type-I interaction, with a quantum conversion efficiency of a few percent. In the case of ZnGeP2 (length, 42 mm) and type-II phase matching, the pump threshold was 0.35 GW/cm2 and the quantum efficiency achieved was 17.6%, corresponding to an output peak power of 3 MW near 5–6 μm.
20
Broadly tunable infrared parametric oscillator using AgGaSe2
R. C. Eckardt, Y. X. Fan, Robert L. Byer et al. · Applied Physics Letters · 1986 · 133 citations
Natural Sciences, Materials Engineering, Materials Science +16
Refractive index interpolation in phase-matching
G. C. Bhar · Applied Optics · 1976 · 98 citations