Title :
Modeling and experimental observation of parametric fluorescence in periodically poled lithium niobate waveguides
Author :
Baldi, P. ; Aschieri, P. ; Nouh, S. ; de Micheli, M. ; Ostrowsky, D.B. ; Delacourt, D. ; Papuchon, M.
Author_Institution :
Lab. de Phys. de la Matiere Condensee, Nice Univ., France
fDate :
6/1/1995 12:00:00 AM
Abstract :
We present a theoretical and experimental study of parametric generation in a guided wave quasi-phase-matched configuration. A numerical model taking into account inverted domain shape, electrooptic and photorefractive effects, as well as waveguide profiles allows calculation of the observed phase matching curves. The observed parametric fluorescence efficiencies can be explained by assuming a slight reduction of nonlinear coefficient and/or a partial degradation of the nonlinear grating. Optimization of the grating depth profile would permit room temperature parametric oscillation using pump wavelengths and powers attainable with diode lasers
Keywords :
electro-optical devices; fluorescence; integrated optics; lithium compounds; optical parametric oscillators; optical waveguide theory; optical waveguides; photorefractive materials; LiNbO3; electrooptic effects; guided wave quasi-phase-matching; inverted domain shape; nonlinear coefficient; nonlinear grating; numerical model; parametric fluorescence; periodically poled lithium niobate waveguides; phase matching; photorefractive effects; Degradation; Electrooptical waveguides; Fluorescence; Frequency conversion; Gratings; Laser excitation; Numerical models; Photorefractive effect; Shape; Temperature;
Journal_Title :
Quantum Electronics, IEEE Journal of
