中国物理B ›› 2015, Vol. 24 ›› Issue (6): 64209-064209.doi: 10.1088/1674-1056/24/6/064209

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A long-term frequency-stabilized erbium-fiber-laser-based optical frequency comb with an intra-cavity electro-optic modulator

张颜艳a, 闫露露a, 赵文宇a b, 孟森a c, 樊松涛a b, 张龙a, 郭文阁c, 张首刚a, 姜海峰a   

  1. a Key Laboratory of Time and Frequency Standards, National Time Service Center, Xi'an 710600, China;
    b University of the Chinese Academy of Sciences, Beijing 100049, China;
    c School of Science, Xi'an Shiyou University, Xi'an 710065, China
  • 收稿日期:2014-10-13 修回日期:2014-11-26 出版日期:2015-06-05 发布日期:2015-06-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91336101 and 61127901) and West Light Foundation of the Chinese Academy of Sciences (Grant No. 2013ZD02).

A long-term frequency-stabilized erbium-fiber-laser-based optical frequency comb with an intra-cavity electro-optic modulator

Zhang Yan-Yan (张颜艳)a, Yan Lu-Lu (闫露露)a, Zhao Wen-Yu (赵文宇)a b, Meng Sen (孟森)a c, Fan Song-Tao (樊松涛)a b, Zhang Long (张龙)a, Guo Wen-Ge (郭文阁)c, Zhang Shou-Gang (张首刚)a, Jiang Hai-Feng (姜海峰)a   

  1. a Key Laboratory of Time and Frequency Standards, National Time Service Center, Xi'an 710600, China;
    b University of the Chinese Academy of Sciences, Beijing 100049, China;
    c School of Science, Xi'an Shiyou University, Xi'an 710065, China
  • Received:2014-10-13 Revised:2014-11-26 Online:2015-06-05 Published:2015-06-05
  • Contact: Jiang Hai-Feng E-mail:haifeng.jiang@ntsc.ac.cn
  • About author:42.55.Wd; 42.62.Eh; 42.65.Re
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91336101 and 61127901) and West Light Foundation of the Chinese Academy of Sciences (Grant No. 2013ZD02).

摘要: We demonstrate an optical frequency comb based on an erbium-doped-fiber femtosecond laser with the nonlinear polarization evolution scheme. The repetition rate of the laser is about 209 MHz. By controlling an intra-cavity electro-optic modulator and a piezo-transducer, the repetition rate can be stabilized with a high-bandwidth servo in a frequency range of 3 kHz, enabling long-term repetition rate phase-locking. The in-loop frequency stability of repetition rate is about 1.6× 10-13 in an integration time of 1 s, limited by the measurement system; and it is inversely proportional to integration time in the short term. Furthermore, using a common path f–2f interferometer, the carrier envelope offset frequency of the comb is obtained with a signal-to-noise ratio of 40 dB in a 3-MHz resolution bandwidth. Stabilized carrier envelope offset frequency exhibits a deviation of 0.6 mHz in an integration time of 1 s.

关键词: optical frequency comb, fiber laser, frequency stabilization, frequency instability

Abstract: We demonstrate an optical frequency comb based on an erbium-doped-fiber femtosecond laser with the nonlinear polarization evolution scheme. The repetition rate of the laser is about 209 MHz. By controlling an intra-cavity electro-optic modulator and a piezo-transducer, the repetition rate can be stabilized with a high-bandwidth servo in a frequency range of 3 kHz, enabling long-term repetition rate phase-locking. The in-loop frequency stability of repetition rate is about 1.6× 10-13 in an integration time of 1 s, limited by the measurement system; and it is inversely proportional to integration time in the short term. Furthermore, using a common path f–2f interferometer, the carrier envelope offset frequency of the comb is obtained with a signal-to-noise ratio of 40 dB in a 3-MHz resolution bandwidth. Stabilized carrier envelope offset frequency exhibits a deviation of 0.6 mHz in an integration time of 1 s.

Key words: optical frequency comb, fiber laser, frequency stabilization, frequency instability

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.62.Eh (Metrological applications; optical frequency synthesizers for precision spectroscopy) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)