Frequency stabilization of an ultraviolet laser to ions in a discharge

2008/06/11 by E. W. Streed, T. J. Weinhold, D. Kielpinski · 1 citation
Computer Science · Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Molecular Physics #Quantum Information and Cryptography #physics.atom-ph #physics.optics

paper · pdf · doi:10.1063/1.2973401

published as Applied Physics Letters 93 071103 (2008) · 4 pages, 3 figures. Submitted to Applied Physics Letters

arxiv created 2008/06/11 · openalex publication_date 2008/08/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We stabilize an ultraviolet diode laser system at 369.5 nm to the optical absorption signal from Yb+ ions in a hollow-cathode discharge lamp. The error signal for stabilization is obtained by Zeeman spectroscopy of the 3 GHz wide absorption feature. The frequency stability is independently measured by comparison to the fluorescence signal from a laser-cooled crystal of Y174b+ ions in a linear Paul trap. We measure a frequency fluctuation of 1.7 MHz over 1000 s and a frequency drift of 20 MHz over 7 days. Our method is suitable for use in quantum information processing experiments with trapped ion crystals.

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