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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Experimental investigation of supercontinuum generation in highly nonlinear dispersion-shifted fiber pumped by spectrum-sliced amplified spontaneous emission
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Experimental investigation of supercontinuum generation in highly nonlinear dispersion-shifted fiber pumped by spectrum-sliced amplified spontaneous emission

机译：光谱切片放大自发泵浦的高非线性色散位移光纤中超连续谱产生的实验研究

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摘要

Spectral broadening of spectrum-sliced amplified spontaneous emission (SS-ASE) in highly nonlinear, dispersion-shifted fiber in different dispersion regimes is investigated experimentally. We find that, the spectral noise of the amplified SS-ASE pump from Er~(3+)-doped fiber amplifier seeds the spectral broadening via four-wave mixing or modulation instability. Stimulated Raman scattering, red-shifted Raman solitons, and blue-shifted dispersion waves all enhance the broadening of the spectrum. The effect of the polarization state of pump on supercontinuum generation is also investigated, and it is found that, linear polarization is more efficient than random polarization for pumping supercontinuum. Supercontinuum with -10 dB bandwidth of 200 nm is generated by launching linearly polarized pump with 33.5 dB m power into anomalous dispersion regime near to zero dispersion wavelength of fiber.
机译：实验研究了在高度非线性，色散位移光纤中，在不同色散范围内的光谱切片放大自发发射（SS-ASE）的光谱展宽。我们发现，来自掺Er〜（3+）光纤放大器的放大SS-ASE泵浦的频谱噪声通过四波混频或调制不稳定性为频谱加宽注入了种子。受激拉曼散射，红移拉曼孤子和蓝移色散波都增强了光谱的范围。还研究了泵浦偏振态对超连续谱产生的影响，发现线性偏振比泵浦超连续谱更有效。 -10 dB带宽为200 nm的超连续谱是通过将功率为33.5 dB m的线性偏振泵送入接近光纤零色散波长的反常色散状态而产生的。

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