0000000000498441

AUTHOR

Christophe Bonnin

showing 3 related works from this author

Absolute measurement of quadratic nonlinearities from phase-matched second-harmonic generation in a single KTP crystal cut as a sphere

1997

We determine within an accuracy of ∼10% the absolute magnitude of the quadratic effective coefficients of types I and II phase-matched second-harmonic generation from conversion efficiency measurements in a single nonlinear crystal cut as a sphere. The agreement is good with measurements performed in thin parallelepipedal samples. The material studied is KTiOPO4, for which improved Sellmeier equations are given.

Absolute magnitudePhysicsbusiness.industryMathematical analysisEnergy conversion efficiencyPhase (waves)Second-harmonic generationStatistical and Nonlinear PhysicsAtomic and Molecular Physics and OpticsCrystalNonlinear systemQuadratic equationOpticsbusinessRefractive indexJournal of the Optical Society of America B
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Phase-matching measurements and Sellmeier equations over the complete transparency range of KTiOAsO_4, RbTiOAsO_4, and CsTiOAsO_4

2000

The sphere method is used for the direct measurement of sum- and difference-frequency generation phase matched in the principal planes of KTiOAsO4, RbTiOAsO4, and CsTiOAsO4, including the tuning curves of 1.064-µm-pumped OPO’s emitting between 3 and 5 µm. The nonlinear least-squares fitting of our experimental data leads to refined dispersion equations of the principal refractive indices; the resulting dual-oscillator form equations are valid over the complete transparency range of the three studied materials.

Materials sciencebusiness.industryPhase (waves)Statistical and Nonlinear PhysicsNonlinear optical crystalAtomic and Molecular Physics and OpticsNonlinear systemOpticsDispersion (optics)Range (statistics)Transparency (data compression)businessRefractive indexPhase matchingJournal of the Optical Society of America B
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Non-critically phase-matched cascaded THG at 440 nm in KTiOP1−yAsyO4 crystals

1995

Abstract We report the relative nonlinear optical properties of flux-grown KTiOP 1− y As y O 4 crystals ( y =0, y =0.03 and y =0.12). The non-critical phase-matching temperatures along the x -axis for blue generation by type II indirect third harmonic generation from 1318.8 nm and 1320 nm are measured. The phosphorus-arsenic substitution allows a “chemical tuning” of the phase-matching properties, through a birefringence variation, so that non-critical phase-matching at room temperature is possible for the previous interactions. Type II frequency doubling from 1064 nm is briefly considered.

Materials scienceBirefringencebusiness.industryPhase (waves)Second-harmonic generationNonlinear opticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsNonlinear opticalOpticsElectrical and Electronic EngineeringPhysical and Theoretical ChemistryThird harmonicbusinessPhase matchingStoichiometryOptics Communications
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