| 声光偏转器扫描飞秒激光的时间色散补偿 |
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| 引用本文： | 李德荣,吕晓华,吴萍,骆清铭,陈伟,曾绍群.声光偏转器扫描飞秒激光的时间色散补偿[J].物理学报,2006,55(9):4729-4733. |
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| 作者姓名： | 李德荣 吕晓华 吴萍 骆清铭 陈伟 曾绍群 |
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| 作者单位： | (1)生物医学光子学教育部重点实验室，华中科技大学，武汉 430074; (2)生物医学光子学教育部重点实验室，华中科技大学，武汉 430074;耶鲁大学神经生物学系，New Haven,CT,06511; (3)耶鲁大学神经生物学系，New Haven,CT,06511 |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 研究了声光偏转器(AOD)扫描飞秒激光的时间色散效应及补偿方案.在800nm波长处，单个AOD引入的群延时色散(GDD)可达～9300fs2.在深入分析AOD和棱镜角色散原理的基础上，提出了用色散棱镜预补偿AOD对飞秒脉冲的时间色散，并进行了实验证实.在AOD中心频率处(70MHz)，将398fs的脉冲压缩到122fs，且整个带宽范围内(50MHz—90MHz)脉宽变化范围为120fs—180fs.这表明该方案用于AOD扫描飞秒激光时进行时间色散补偿是非常有效的.
关键词：
飞秒激光
声光偏转器
时间色散
脉冲压缩
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| 关 键 词： | 飞秒激光 声光偏转器 时间色散 脉冲压缩 |
| 文章编号： | 1000-3290/2006/55(09)/4729-05 |
| 收稿时间： | 11 23 2005 12:00AM |
| 修稿时间： | 2005-11-232005-12-23 |
Compensation of temporal dispersion for acousto-optical deflector scanning femtosecond laser |
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| Li De-Rong,Lü Xiao-Hua,Wu Ping,Luo Qing-Ming,Chen R. Wei,Zeng Shao-Qun.Compensation of temporal dispersion for acousto-optical deflector scanning femtosecond laser[J].Acta Physica Sinica,2006,55(9):4729-4733. |
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| Authors: | Li De-Rong Lü Xiao-Hua Wu Ping Luo Qing-Ming Chen R Wei Zeng Shao-Qun |
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| Institution: | 1 Key Laboratory of Biomedical Photonics of Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China; 2 Department of Neurobiology , Yale University, New Haven, CT , 06511 |
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| Abstract: | The temporal dispersion effect and compensation approach of femtosecond laser scanning by an acousto-optical deflector (AOD) was studied. The group delay dispersion (GDD) of a single AOD at 800nm wavelength is about 9300fs2. Based on the principle of angular dispersion of AOD and the prism, an approach that uses single prism pre-compensating an AOD for the temporal dispersion was designed and demonstrated by experiments. At center frequency (70MHz) of the AOD, a 398fs pulse is compressed to 122fs, the range of pulse width on the entire bandwidth (50MHz—90MHz) is 120fs—180fs. This approach is demonstrated to be effective on compensation of temporal dispersion for AOD scanning femtosecond laser. |
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| Keywords: | femtosecond laser acousto-optical deflector temporal dispersion pulse compression |
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