J4 ›› 2013, Vol. 30 ›› Issue (5): 543-548.

• 激光技术与器件 • 上一篇    下一篇

光纤飞秒光梳频率精密控制的研究

刘星洋,周大伟,戴少阳,刘立洋,马兆远,陈徐宗   

  1. 1 北京大学信息科学技术学院电子学系量子电子所, 北京 100871; 2 中国科学院上海光学精密机械研究所, 上海 201800
  • 收稿日期:2012-10-09 修回日期:2012-11-07 出版日期:2013-09-28 发布日期:2013-09-17
  • 通讯作者: 陈徐宗 (1958-)教授、博士生导师,从事量子精密测量、飞秒激光稳频、原子钟以及玻色-爱因斯坦凝聚的实验和理论研究。 E-mail:xuzongchen@pku.edu.cn
  • 作者简介:刘星洋 1987- 研究生, 研究方向为光频标精密测量
  • 基金资助:
    国家重点基础研究发展计划(2011CB921501),国家自然科学基金(61027016,61078026,10874008,10934010)资助

Precise control of fiber-based femtosecond optical frequency comb

Xingyang Liu , Dawei Zhou Shaoyang Dai , Liyang Liu, Zhaoyuan Ma, Xuzong Chen   

  1. 1 Institute of Quantum Electronics, School of Electronics Engineering & Computer Science, Peking University, Beijing 100871, China 2 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2012-10-09 Revised:2012-11-07 Published:2013-09-28 Online:2013-09-17

摘要: 新一代光纤飞秒光梳在精密测量和基础物理研究领域中有着广阔的前景,一种通过数字电荷泵锁相环和温控电路相结合的方法可以精密控制光纤飞秒光梳。在实验中,我们成功搭建了光纤飞秒光梳系统。光梳的重复频率为129MHz,初始频率大约为33MHz。我们通过自主研发的温控和数字电荷泵锁相环成功地把光纤飞秒光梳成功地锁定在了由Agilent PSG Analog Singal Generator提供的标准微波信号上,锁定时间至少长达1天。锁定后的重复频率的抖动标准差为0.78mHz,与基准源同一个数量级且很接近,锁定后的初始频率的抖动标准差可达8.98Hz。

关键词: 激光技术, 光纤飞秒光梳, 光梳稳频, 数字电荷泵锁相环

Abstract: The fiber-based femtosecond optical frequency comb has great potential in the field of fundamental physics and precision measurement. We describe an experimental apparatus for precise control of the fiber-based femtosecond optical frequency comb. The system is combined with a digital charge-pump phase-locked loop (CPPLL) and a temperature stabilizer. We built the optical comb system of which the repetition frequency is and the carrier-envelope offset (CEO) frequency is about 33MHz. We locked the frequency comb with the standard signal provided by the Agilent PSG Analog Signal Generator. The locked state can be maintained over 1 day. The standard deviation of repletion frequency is 0.78mHz which is the same order of magnitude with reference, and the standard deviation of CEO frequency can be 8.98Hz.

Key words: laser techniques, fiber-based femtosecond optical frequency comb, stabilization of optical comb frequency, digital charge-pump phase-locked loop

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