Phase mismatch effects on the dynamics of a semilinear photorefractive oscillator with reflection-type gratings |
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| Authors: | R Rebhi P Mathey M Grapinet H-R Jauslin S Odoulov |
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| Institution: | 1. Institut Carnot de Bourgogne, UMR 5209 CNRS-Université de Bourgogne, 9 Avenue Alain Savary, BP 47870, 21078, Dijon Cedex, France
2. Institute of Physics, National Academy of Sciences, 46 Science Avenue, 03650, Kiev, Ukraine
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| Abstract: | This paper describes the effect of pump waves misalignement on the performance of the semilinear photorefractive coherent oscillator with the reflection gratings. The oscillation intensity and its modulation frequency are calculated numerically for different misalignement angles, coupling strengths and pump intensity ratios. It is shown that a small angular detuning of the pump wave, less than one milliradian, extends the range of pump ratios and the range of coupling strengths for which a non-degenerate oscillation occurs. The results of experiments with the BaTiO3-based semilinear oscillator are in qualitative agreement with the calculated data. |
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