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Quasi-phase-matched DC-induced three wave mixing versus four wave mixing: a simulated comparison

机译:准相位匹配的直流感应三波混合与四波混合:模拟比较

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摘要

A comparison is made between DC-induced three-wave mixing under an on-off quasi-phase-matching scheme and a perfectly phase-matched four wave mixing process. It is shown that the DC-induced process is capable of producing a significantly larger conversion efficiency than the four wave mixing process. Despite the fact that it suffers greater effects of dispersion, the enhanced growth rate of the DC-induced process provides a conversion efficiency roughly 300x larger than that of four wave mixing. Over a sample length of 20 cm the DC-induced process is able to generate idler power more than 270 times greater than that produced by the equivalent four wave mixing process.
机译:比较了在开-关准相位匹配方案下直流感应的三波混合与完美相位匹配的四波混合过程之间的比较。结果表明,与四波混频过程相比,直流感应过程能够产生明显更大的转换效率。尽管事实上它受到更大的色散影响,但是直流感应过程的增长速度提高了,其转换效率比四波混频大了300倍。在20 cm的样本长度上,直流感应过程能够产生比等效四波混合过程产生的闲置功率大270倍的空转功率。

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