Robust offset locking of laser frequency with electronically tunable LC circuits for sub-millihertz uncertainty

Yuhei Seishu, Taro Hasegawa

Research output: Contribution to journalArticle


A simple scheme for laser frequency offset locking introduced in Cheng et al. (Opt Express 25:2752, 2017) has been improved by the use of a variable-capacitance diode. By employing this scheme with the optical phase lock loop, robust and precise laser frequency stabilization is achieved, and long-term laser frequency drift is expected to be substantially suppressed even in noisy circumstances. The optical frequency uncertainty becomes less than 10 μ Hz for 1000 s averaging.

Original languageEnglish
Article number142
JournalApplied Physics B: Lasers and Optics
Issue number8
Publication statusPublished - 2019 Aug 1


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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