Phase diagrams for semilinear photorefractive coherent oscillator |
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Authors: | Email author" target="_blank">M?GrapinetEmail author P?Mathey S?Odoulov D?Rytz |
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Institution: | (1) Laboratoire de Physique de l Université de Bourgogne, UMR CNRS 5027, 9 avenue Alain Savary, 21078 Dijon Cedex, France;(2) Institute of Physics, National Academy of Sciences, 03650 Kiev-39, Ukraine;(3) Forschunginstitute für mineralische und metallische Werkstoffe, Edelsteine Edelmetalle GmbH, 55743 Idar-Oberstein, Germany |
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Abstract: | The sequence of optical phase transitions is considered for a photorefractive coherent oscillator with a conventional mirror and a four-wave mixing phase conjugate mirror. Analogous to phase transitions in solids, the phase diagrams are constructed and defined qualitatively as different states of a whole system (light-induced scattering below the threshold of oscillation, single-frequency oscillation, two-frequency oscillation, and multimode mirrorless oscillation). The attempt of experimental mapping of a phase diagram is presented for a coherent oscillator with Co-doped BaTiO3. PACS 42.65.Hw; 05.45.-a; 42.65.Pc; 42.65.Sf. |
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