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Supercontinuum generation in fibers infiltrated with liquid crystals

机译:在液晶渗透的纤维中产生超连续谱

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摘要

Supercontinuum generation in a capillary tube infiltrated with a nematic liquid crystal is investigated theoretically in the near infrared region. A liquid crystal with a high electronic nonlinearity is chosen, which makes it possible to generate 100 nm wide supercontinua using IO ps pulses with peak power 1.5 kW in a 10 cm long waveguide. The possibility of tuning the spectrum of the generated Supercontinuum by changing the dispersion of the waveguide is also considered. It is found that the broadening of the spectrum in both the normal and anomalous regime is mainly due to self phase modulation, and therefore the dispersion of the waveguide is only of minor importance. The tuning of the dispersion is achieved by varying the temperature of the liquid crystal inside the capillary
机译:理论上在近红外区域研究了向列液晶渗透的毛细管中超连续谱的产生。选择具有高电子非线性度的液晶,这样可以在10 cm长的波导中使用峰值功率1.5 kW的IO ps脉冲产生100 nm宽的超连续谱。还考虑了通过改变波导的色散来调整生成的超连续谱的光谱的可能性。发现正常和异常状态下的光谱加宽主要是由于自相位调制,因此波导的色散仅次要。通过改变毛细管内部液晶的温度来实现色散的调节

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