| 非共线相位匹配飞秒脉冲光参量过程的研究 |
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| 引用本文： | 李旭,朱振和. 非共线相位匹配飞秒脉冲光参量过程的研究[J]. 中央民族大学学报(自然科学版), 2005, 14(4): 297-304 |
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| 作者姓名： | 李旭 朱振和 |
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| 作者单位： | 1. 北京理工大学,信息科学技术学院,北京,100081;华北科技学院,机电工程系,北京,101601
2. 中央民族大学,物理与电子工程学院,北京,100081 |
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| 摘 要： | 对非共线相位匹配飞秒脉冲光参量产生过程作了理论研究,计算了非共线相位匹配结构的光参量产生过程中非共线角与相位匹配角的关系,参量带宽和群速度失配参数随非共线角变化的情况.说明采用非共线相位匹配结构可以补偿泵浦光、信号光和闲频光之间的群速度失配,大大地提高飞秒脉冲光参量产生过程的转换效率.
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| 关 键 词： | 光参量产生 非共线相位匹配 飞秒脉冲 参量带宽 群速度失配 转换效率 |
| 文章编号： | 1005-8036（2005）04-0297-08 |
| 收稿时间： | 2005-04-06 |
| 修稿时间： | 2005-04-06 |
Study on Noncollinear Phase-Matching Optical Parametric Generation of Femtosecond Pulses |
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| LI Xu,ZHU Zhen-he. Study on Noncollinear Phase-Matching Optical Parametric Generation of Femtosecond Pulses[J]. Journal of The Central University for Nationalities(Natural Sciences Edition), 2005, 14(4): 297-304 |
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| Authors: | LI Xu ZHU Zhen-he |
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| Affiliation: | 1. School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China ; 2. North China Institute of Science and Technology, Beijing 101601, China; 3. College of Physical and Electronic Engineering, Central University for Nationalities, Beifing 100081, China |
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| Abstract: | The noncollinear phase-matching optical parametric generation(NOPG) of femtosecond pulses is studied theoretically.The relation between the noncollinear angle and phase-matching angle,the parametric bandwidth as a function of the noncollinear angle,and the group-velocity mismatch of noncollinear phase-matching optical parametric generation are calculated.It is shown that the groupvelocity mismatch among the pump,the signal and the idler pulse can be compensated by using the NOPG structure,so that the conversion efficiency of the femtosecond pulse OPG can be greatly increased. |
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| Keywords: | optical parametric generation noncollinear phase-matching femtosecond pulses parametricbandwidth group-velocity mismatch conversion efficiency |
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