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arXiv 2304.00829physics.optics
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使用遗传算法优化的傅里叶域脉冲整形进行定制超连续谱生成

Tailored supercontinuum generation using genetic algorithmoptimized Fourier domain pulse shaping

Mathilde Hary, Lauri Salmela, Piotr Ryczkowski, Francesca Gallazzi, John M. Dudley, Goëry Genty

AI总结:

本研究提出利用遗传算法控制傅里叶域脉冲整形技术,定制飞秒脉冲注入高非线性光纤生成的超连续谱,实现了1550-2000 nm范围内用户可选波长与带宽的光谱增强,最大增强因子超160倍,并支持同时增强多波长。

摘要:

我们报告了使用傅里叶域脉冲整形技术生成光谱定制的超连续谱,将飞秒脉冲注入高非线性光纤中并由遗传算法控制。在1550-2000 nm波长范围内演示了用户可选的光谱增强功能,能够同时选择目标中心波长和1-5 nm范围内的目标带宽。相对于未整形的输入脉冲,在1550-1800 nm范围内的光谱增强因子通常约为5-20,并在较长波长处增加,在2000 nm附近超过160倍。我们还演示了将遗传算法应用于同时增强多达四个波长的结果。

英文摘要:

We report the generation of spectrally-tailored supercontinuum using Fourier-domain pulse shaping of femtosecond pulses injected into a highly nonlinear fiber controlled by a genetic algorithm. User-selectable spectral enhancement is demonstrated over the 1550-2000~nm wavelength range, with the ability to both select a target central wavelength and a target bandwidth in the range 1--5~nm. The spectral enhancement factor relative to unshaped input pulses is typically $\sim$5--20 in the range 1550--1800~nm and increases for longer wavelengths, exceeding a factor of 160 around 2000~nm. We also demonstrate results where the genetic algorithm is applied to the enhancement of up to four wavelengths simultaneously.

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