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色散介质中啁啾高斯脉冲的时间和光谱特性 被引量:6

Temporal and Spectral Properties of a Chirped Gaussian Pulse in Dispersive Media
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摘要 对啁啾高斯脉冲光束在色散介质中的时间和光谱特性作了研究.给出了远场光谱蓝移和脉冲展宽的解析式.结果表明:通过选择适当的啁啾参量,啁啾高斯脉冲光束沿轴上传输色散长度时,脉冲可恢复到初始值.随啁啾参量增加,谱线宽度展宽,轴上光谱蓝移增加,在远场蓝移趋于一渐近值.随啁啾参量增加,离轴光谱红移增加. The temporal and spectral properties of a chirped Gaussian pulse in linear dispersive media are studied. The pulse broadening factor and far-field spectral blueshift are presented. It is shown that by a suitable choice of the chirp parameter C, the pulse will restore its initial form when the chirped Gaussian pulse propagates along the axis within the dispersion length. The on-axis spectral width broadens with increasing C. The axial spectral blueshift increases with increasing C and approaches an asymptotic value in the far field. The off-axis spectral redshift increases with increasing C.
出处 《光子学报》 EI CAS CSCD 北大核心 2007年第8期1409-1413,共5页 Acta Photonica Sinica
基金 国家自然科学基金(10574097)资助
关键词 高斯脉冲 啁啾 时间和光谱特性 色散介质 Gaussian pulse Chirp Temporal and spectral properties Dispersive medium
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参考文献11

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