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

Taro Hasegawa, Yuhei Seishu

研究成果: Conference contribution


Laser frequency stabilization is one of the essential technique in atomic, molecular, and optical physics, quantum optics, optical communications, and fundamental physics. Optical offset locking is the technique to stabilize optical frequency of a single-mode laser (slave laser) with respect to another well-stabilized laser (master laser). Optical phase lock loop (OPLL) [1] is one of the offset locking schemes, with which the slave laser frequency can be stabilized very precisely (less than the uncertainty of 10-18). However, especially in noisy experimental circumstances, the OPLL does not work because its capture range is not so wide that the locking fails for large amount of frequency jitters. In order to keep the locked condition, another offset locking with wider capture range is sometimes required. Examples of such locking schemes are digital processing technique, optical frequency locking to resonance frequency of a high-finesse cavity [2], offset locking with an electrical delay line [3], and offset locking with electric LC resonant circuit [4]. The offset locking with the electric LC circuit (LC locking) has been introduced by W. -Y. Cheng et al, and with employing this scheme with the OPLL the beat-note frequency can be stabilized as precise as one millihertz.

ホスト出版物のタイトルEuropean Quantum Electronics Conference, EQEC_2019
出版社OSA - The Optical Society
出版ステータスPublished - 2019
イベントEuropean Quantum Electronics Conference, EQEC_2019 - Munich, United Kingdom
継続期間: 2019 6月 232019 6月 27


名前Optics InfoBase Conference Papers
Part F143-EQEC 2019


ConferenceEuropean Quantum Electronics Conference, EQEC_2019
国/地域United Kingdom

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 材料力学


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