| KBe2BO3F2飞秒光参量放大中的群速匹配 |
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| 引用本文： | 马晶,刘迎.KBe2BO3F2飞秒光参量放大中的群速匹配[J].物理学报,2009,58(7):4697-4701. |
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| 作者姓名： | 马晶 刘迎 |
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| 作者单位： | 天津大学理学院物理系,天津 300072 |
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| 基金项目： | 天津大学青年教师基金（批准号：5110133）资助的课题. |
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| 摘 要： | 提出了KBe2BO3F2 （KBBF）飞秒光参量放大中三波群速完全匹配的方法.对于Ⅰ类相位匹配方式采用非共线结构及倾斜抽运光脉冲波面，对于Ⅱ类相位匹配方式采用共线结构同时倾斜抽运光和信号光脉冲波面，可实现参量带宽最大时三波群速的完全匹配，从而获得更高增益，更窄脉宽的参量光.
关键词：
群速匹配
相位匹配
脉冲波面倾斜
飞秒光参量放大
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| 关 键 词： | 群速匹配 相位匹配 脉冲波面倾斜 飞秒光参量放大 |
| 收稿时间： | 2008-09-22 |
Group velocity matching in femtosecond optical parametric amplification of the KBe2BO3F2 |
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| Ma Jing and Liu Ying.Group velocity matching in femtosecond optical parametric amplification of the KBe2BO3F2[J].Acta Physica Sinica,2009,58(7):4697-4701. |
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| Authors: | Ma Jing and Liu Ying |
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| Abstract: | In this paper a method is presented for the first time, witch can match completely group velocities of three pulses in femtosecond optical parametric amplification （OPA） of the KBe2BO3F2 （KBBF） crystal. We combine noncollinear configuration with tilting pulse front of pump, and collinear configuration with tilting pulse front of pump and signal, in type-Ⅰ and type-Ⅱ phase matching configurations respectively, to realize complete match of group velocities of three pulses in maximal parametric bandwidth of the femtosecond OPA, thus can obtain parametric pulses with higher gain and shorter duration. |
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| Keywords: | group velocity matching phase matching pulse front tilt femtosecond optical parametric amplification |
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