Robust frequency stabilization and linewidth narrowing of a laser with large intermittent frequency jumps using an optical cavity and an atomic beam

An experimental method is developed for robust frequency stabilization using a high-finesse cavity when the laser exhibits large intermittent frequency jumps. This is accomplished by applying an additional slow feedback signal from Doppler-free fluorescence spectroscopy in an atomic beam with increa...

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Veröffentlicht in:Applied optics (2004) 2020-10, Vol.59 (28), p.8918-8924
Hauptverfasser: Lee, Won-Kyu, Yong Park, Chang, Heo, Myoung-Sun, Yu, Dai-Hyuk, Kim, Huidong
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Sprache:eng
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Zusammenfassung:An experimental method is developed for robust frequency stabilization using a high-finesse cavity when the laser exhibits large intermittent frequency jumps. This is accomplished by applying an additional slow feedback signal from Doppler-free fluorescence spectroscopy in an atomic beam with increased frequency locking range. As a result, a stable and narrow-linewidth 556 nm laser maintains the frequency lock status for more than a week and contributes to more accurate evaluation of the Yb optical lattice clock. In addition, the reference optical cavity is supported at vibration-insensitive points without any vibration isolation table, making the laser setup more simple and compact.
ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.404817