内含光栏的光栅对展宽器式脉冲整形器的输出光束特性 |
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引用本文: | 徐世祥,张华,高艳霞,范滇元. 内含光栏的光栅对展宽器式脉冲整形器的输出光束特性[J]. 光学学报, 1998, 18(6): 641-649 |
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作者姓名: | 徐世祥 张华 高艳霞 范滇元 |
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作者单位: | 徐世祥:中国科学院上海光学精密机械研究所,上海 201800 张华:中国科学院上海光学精密机械研究所,上海 201800 高艳霞:中国科学院上海光学精密机械研究所,上海 201800 范滇元:中国科学院上海光学精密机械研究所,上海 201800
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摘 要: | 在忽略空间衍射效应的情况下,研究了内含狭缝光栏的光栅对展宽器式脉冲整形器的输出光束的时间特性;通过与光束的空间传输特性类比解析了光栏宽度变化引起的脉宽变化以及脉冲轮廓出现时间衍射调制现象;讨论了空间衍射效应可忽略的条件;提出用光栏软边可消除这种调制。
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关 键 词: | 脉冲整形 啁啾脉冲 输出特性 |
收稿时间: | 1997-05-20 |
Characteristics of Output Pulse from a Grating Pair Stretcher with a Slit |
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Abstract: | Temporal characteristics of output pulse from a grating pair stretcher with a slit are investigated neglecting the spatial diffraction. And a theoretical model is established to expound the variation of pulse duration and the modulation on the pulse envelope similar to the diffraction characteristics in spatial domain. The modulation can be eliminated by appropriate soft slit. The condition, on which the slit has not much to do with spatial filtering, is discussed. |
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Keywords: | pulse shaping chirp pulse characteristics of output |
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