Frequency Calibration and Stabilization of the Cooling Laser of Ytterbium Lattice Clock with Molecular Iodine Spectroscopy
| Autor: | Jingjing Cheng, Kun-Liang Jiang, Lingxiang He |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Ytterbium
Multidisciplinary Materials science business.industry Automatic frequency control Physics::Optics chemistry.chemical_element Laser 01 natural sciences law.invention Whole systems 010309 optics Optics chemistry law Lattice (order) 0103 physical sciences Spectral width Calibration Physics::Atomic Physics 010306 general physics business Spectroscopy |
| Zdroj: | Wuhan University Journal of Natural Sciences. 24:423-426 |
| ISSN: | 1993-4998 1007-1202 |
| DOI: | 10.1007/s11859-019-1416-4 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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