| 色散介质中啁啾高斯脉冲的时间和光谱特性 |
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| 引用本文： | 邹其徽,吕百达. 色散介质中啁啾高斯脉冲的时间和光谱特性[J]. 光子学报, 2007, 36(8): 1409-1413 |
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| 作者姓名： | 邹其徽 吕百达 |
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| 作者单位： | 四川大学,激光物理与化学研究所,成都,610064;西南石油大学,理学院,成都,610500;四川大学,激光物理与化学研究所,成都,610064 |
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| 基金项目： | 国家自然科学基金(10574097)资助 |
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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.
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| 关 键 词： | 高斯脉冲 啁啾 时间和光谱特性 色散介质 |
| 文章编号： | 1004-4213（2007）08-1409-5 |
| 收稿时间： | 2005-12-09 |
| 修稿时间： | 2005-12-09 |
Temporal and Spectral Properties of a Chirped Gaussian Pulse in Dispersive Media |
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| ZOU Qi-hui,L Bai-da. Temporal and Spectral Properties of a Chirped Gaussian Pulse in Dispersive Media[J]. Acta Photonica Sinica, 2007, 36(8): 1409-1413 |
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| Authors: | ZOU Qi-hui L Bai-da |
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| Affiliation: | 1 Institute of Laser Physics and Chemistry, Sichuan University ,Chengdu 610064 ,China; 2 College of Science, Southwest Petroleum University, Chengdu 610500, China |
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| Abstract: | 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. |
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| Keywords: | Gaussian pulse Chirp Temporal and spectral properties Dispersive medium |
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