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利用自相关方法实现光脉冲时间延迟精确测量

王竞 李建中 温伟峰 陈光华 彭其先 陶世兴

王竞, 李建中, 温伟峰, 陈光华, 彭其先, 陶世兴. 利用自相关方法实现光脉冲时间延迟精确测量[J]. 中国光学(中英文), 2015, 8(2): 270-276. doi: 10.3788/CO.20150802.0270
引用本文: 王竞, 李建中, 温伟峰, 陈光华, 彭其先, 陶世兴. 利用自相关方法实现光脉冲时间延迟精确测量[J]. 中国光学(中英文), 2015, 8(2): 270-276. doi: 10.3788/CO.20150802.0270
WANG Jing, LI Jian-zhong, WEN Wei-feng, CHEN Guang-hua, PENG Qi-xian, TAO Shi-xing. Precisely measuring for optical pulse time delay using autocorrelation[J]. Chinese Optics, 2015, 8(2): 270-276. doi: 10.3788/CO.20150802.0270
Citation: WANG Jing, LI Jian-zhong, WEN Wei-feng, CHEN Guang-hua, PENG Qi-xian, TAO Shi-xing. Precisely measuring for optical pulse time delay using autocorrelation[J]. Chinese Optics, 2015, 8(2): 270-276. doi: 10.3788/CO.20150802.0270

利用自相关方法实现光脉冲时间延迟精确测量

doi: 10.3788/CO.20150802.0270
基金项目: 中国工程物理研究院专项基金资助项目(No.991100)
详细信息
    通讯作者:

    王 竞(1989—),男,湖北十堰人,硕士研究生,2012年于浙江大学获得学士学位,主要从事光电子方面的研究。E-mail:yk47wj@163.com

  • 中图分类号: TN29

Precisely measuring for optical pulse time delay using autocorrelation

  • 摘要: 为了满足在高精度波分复用/时分复用光采样系统中,采样光脉冲时间抖动低于100 fs的要求,开发了一套基于自相关法测量时间延迟的系统。通过光纤耦合器连接一路参考光路将光脉冲在时域上进行"复制",并使初始光脉冲和"复制"光脉冲相关,得到参考光路和被测光路的精确光程差,进而固定参考光路并接入不同被测光路从而得到多路被测光路之间相对延时。实验结果表明,利用自相关法测量脉冲时间间隔精度优于50 fs,满足波分复用/时分复用光采样系统研究需要。

     

  • 图 1  波分复用/时分复用光采样系统示意图

    Figure 1.  Sketch map of the WDM/OTDM optical sampling system

    图 2  测试光路结构图

    Figure 2.  Configuration of the measuring optical path

    图 3  多个自相关峰产生过程

    Figure 3.  Forming process of multiple autocorrelation peaks

    图 4  自相关峰相对位置随着参考路与测量路光程差发生变化

    Figure 4.  Relative position changes of the autocorrelation peaks with the optical path difference between the reference optical path and the measuring optical path

    表  1  实验数据

    Table  1.   Experiment data(fs)

    T1T2T3
    下载: 导出CSV
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出版历程
  • 收稿日期:  2014-10-11
  • 录用日期:  2015-01-13
  • 刊出日期:  2015-04-25

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