6533b821fe1ef96bd127c341

RESEARCH PRODUCT

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

J.p. FeveJean Jacques ZondyP. VillevalChristophe BonninBenoît BoulangerG. Marnier

subject

Absolute magnitudePhysicsbusiness.industryMathematical analysisEnergy conversion efficiencyPhase (waves)Second-harmonic generationStatistical and Nonlinear PhysicsAtomic and Molecular Physics and OpticsCrystalNonlinear systemQuadratic equationOpticsbusinessRefractive index

description

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.

https://doi.org/10.1364/josab.14.001380