Modulation instability of plane electromagnetic beams in centro-symmetric crystals due to two-photon photorefractive effects
作者： S Shwetanshumala , S Konar
DOI: 10.1088/0031-8949/83/02/025401
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摘要: This paper presents an investigation of the modulation instability (MI) a broad optical beam in biased centro-symmetric two-photon photorefractive media under undepleted pump approximation. From evolution equation perturbation field, we obtain expression for growth rate sidebands. The occurrence MI has been found to be constrained by system parameters. gain function, its maximum value, critical frequency and bandwidth have evaluated unstable region.
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