期刊
OPTICS COMMUNICATIONS
卷 285, 期 17, 页码 3654-3658出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2012.04.041
关键词
Optical rogue waves; Optical parametric amplification; Supercontinuum generation; Extreme events
类别
资金
- Research Council of Lithuania [MIP-057/2011]
We study how the probability density function of a weak seed intensity is transformed in a nonlinear process such as optical parametric amplification. The character of the transformation strongly depends on the amplification regime accessed: in the small-gain (undepleted-pump) regime the statistics of the seed are transferred to the statistics of the amplified signal almost unaltered. In contrast, in the gain saturation regime the modification of the statistics is considerable. In particular, we demonstrate that rogue-wave-like (long-tailed) statistics of the seed are completely suppressed, and resulting probability distribution function of the amplified signal becomes Gaussian. The theoretical findings are supported by the experiments carried out in supercontinuum-seeded noncollinear optical parametric amplifier. (C) 2012 Elsevier B.V. All rights reserved.
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