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

Abstract

An experimental method is developed for the 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.

arXiv comment7 pages, 6 figures

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Cited by in corpus (3)

• Absolute frequency measurement of the 171Yb optical lattice clock at KRISS using TAI for over a year
• Tutorial on laser locking techniques and the manufacturing of vapor cells for spectroscopy
• Locking Multi-laser Frequencies to a Precision Wavelength Meter: Application to Cold Atoms