Threshold of oscillation in a ring-loop phase conjugator as a second-order optical phase transition |
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| Authors: | M. Goul’kov O. Shinkarenko S. Odoulov E. Krätzig R. Pankrath |
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| Affiliation: | Institute of Physics, National Academy of Sciences, 03650, Kiev-39, Ukraine, UA
Fachbereich Physik, Universit?t Osnabrück, 49080 Osnabrück, Germany, DE
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| Abstract: | The threshold behavior is studied for a ring-loop coherent oscillator with a photorefractive strontium barium niobate (SBN) sample. A soft onset of oscillation is revealed and critical slowing down is observed in the temporal development of light-induced scattering below the threshold, thus pointing to a similarity with a second-order phase transition. Received: 10 July 2000 / Published online: 20 September 2000 |
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| Keywords: | PACS: 42.65.Hw 42.65.Sf 42.65.P |
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