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Second harmonic generation in a high-Q lithium niobate microresonator fabricated by femtosecond laser micromachining

  • JinTian Lin
  • YingXin Xu
  • ZhiWei Fang
  • Min Wang
  • NengWen Wang
  • LingLing Qiao
  • Wei Fang
  • Ya Cheng
Article Special Topic: Microcavity Photonics

Abstract

We report on second harmonic generation (SHG) in on-chip high-Q (>105) lithium niobate (LiNbO3, LN) microresonators fabricated by femtosecond laser micromachining. We examine the efficiency of SHG with either a continuous-wave (CW) or an ultrashort pulsed pump laser. The normalized conversion efficiencies of SHG obtained with the CW and pulsed pump lasers are measured to be 1.3510-5 m W-1 and 2.3010-6 m W-1, respectively.

Keywords

second harmonic generation femtosecond laser micromachining lithium niobate microresonator 

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • JinTian Lin
    • 1
  • YingXin Xu
    • 2
  • ZhiWei Fang
    • 1
    • 3
  • Min Wang
    • 1
    • 4
  • NengWen Wang
    • 1
  • LingLing Qiao
    • 1
  • Wei Fang
    • 2
  • Ya Cheng
    • 1
  1. 1.State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina
  2. 2.State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and EngineeringZhejiang UniversityHangzhouChina
  3. 3.School of Physical Science and TechnologyShanghaiTech UniversityShanghaiChina
  4. 4.University of Chinese Academy of SciencesBeijingChina

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