Wuhan University Journal of Natural Sciences

, Volume 24, Issue 5, pp 423–426 | Cite as

Frequency Calibration and Stabilization of the Cooling Laser of Ytterbium Lattice Clock with Molecular Iodine Spectroscopy

  • Kunliang Jiang
  • Jingjing Cheng
  • Lingxiang HeEmail author
Chemistry and Physics


In order to apply the frequency comparison among the different optical clocks, transportable optical clocks (TOCs) is suggested as a valuable tool. For transportable clocks, the key technique is how to lock the lasers involved in the whole system. In this paper, we carry out a new way to calibrate and lock the second stage cooling laser of the ytterbium lattice clock with molecular iodine spectroscopy. The locking spectral width of 556 nm laser can be narrowed to 195 kHz, which can be used for frequency control and the stabilization of the second stage cooling. So the new method will make the transportable optical clocks more compact and robust in the future.

Key words

molecular iodine spectrum ytterbium lattice clock cooling laser frequency stabilization 

CLC number

O 433 O 562 


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Copyright information

© Wuhan University and Springer-Verlag GmbH Germany 2019

Authors and Affiliations

  • Kunliang Jiang
    • 1
    • 2
  • Jingjing Cheng
    • 1
    • 2
  • Lingxiang He
    • 1
    Email author
  1. 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan, HubeiChina
  2. 2.School of PhysicsUniversity of Chinese Academy of SciencesBeijingChina

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