Deceleration and shape-transformation of light pulses during phase conjugation in photorefractive media
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- Sturman, B., Podivilov, E. & Gorkunov, M. Appl. Phys. B (2009) 95: 545. doi:10.1007/s00340-009-3401-7
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We have theoretically investigated the main features of pulse deceleration and pulse-shape transformations during phase conjugation in photorefractive nonlinear media. The main attention in article is paid to the critical features which occur near the threshold of mirrorless oscillation. It is shown that the effects of critical enhancement when approaching the threshold do not lead to superior light slowing down characteristics as compared to the case of two-beam coupling. At the same time, essentially new features of pulse-shape transformation occur above the threshold.