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首页> 外文期刊>Laser Physics: An International Journal devoted to Theoretical and Experimental Laser Research and Application >Supercontinuum generation employing the high-energy wave-breaking-free pulse in a compact all-fiber laser system
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Supercontinuum generation employing the high-energy wave-breaking-free pulse in a compact all-fiber laser system

机译：在紧凑的全光纤激光器系统中利用高能无波折脉冲产生超连续谱

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摘要

Supercontinuum (SC) generation is experimentally achieved in a compact all-fiber laser system by using high-energy wave-breaking-free dissipative soliton (DS) pulses. The pulses exhibit Gaussian (rectangular) shape profiles in spectral (temporal) domain, which is even reversed of the typical rectangular-spectrum DSs. With the increase of pump power the pulse duration enlarges dramatically whereas the bandwidth and peak power of the pulse keep almost constant, which enables the pulse to accumulate much higher energy during the pulse-shaping process. When inputting the amplified pulse into the single-mode fiber, SC with excellent flatness is generated with the spectral range from about 1550 to 1700 nm. Broader SC with the bandwidth of even larger than 1000 nm can also be generated by this kind of pulse in the near-zero-dispersion-flattened photonic-crystal fiber through strong nonlinear effects.
机译：通过使用高能量无波折耗散孤子（DS）脉冲，在紧凑的全光纤激光系统中通过实验实现了超连续谱（SC）的生成。脉冲在光谱（时间）域中呈现高斯（矩形）形状轮廓，甚至与典型的矩形光谱DS相反。随着泵浦功率的增加，脉冲持续时间急剧增加，而脉冲的带宽和峰值功率几乎保持恒定，这使得脉冲在脉冲整形过程中能够积累更高的能量。当将放大后的脉冲输入到单模光纤中时，在约1550至1700 nm的光谱范围内会产生具有出色平坦度的SC。通过近乎零色散平坦的光子晶体光纤中的这种脉冲，还可以通过强烈的非线性效应产生带宽甚至大于1000 nm的更宽的SC。

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