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A single-mode external cavity diode laser using an intra-cavity atomic Faraday filter with short-term linewidth <400 kHz and long-term stability of <1 MHz.

Keaveney, James and Hamlyn, William J. and Adams, Charles S. and Hughes, Ifan G. (2016) 'A single-mode external cavity diode laser using an intra-cavity atomic Faraday filter with short-term linewidth <400 kHz and long-term stability of <1 MHz.', Review of scientific instruments., 87 (9). 095111.

Abstract

We report on the development of a diode laser system - the “Faraday laser” - using an atomic Faraday filter as the frequency-selective element. In contrast to typical external-cavity diode laser systems which offer tunable output frequency but require additional control systems in order to achieve a stable output frequency, our system only lases at a single frequency, set by the peak transmission frequency of the internal atomic Faraday filter. Our system has both short-term and long-term stability of less than 1 MHz, which is less than the natural linewidth of alkali-atomic D-lines, making similar systems suitable for use as a “turn-key” solution for laser-cooling experiments.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1063/1.4963230
Publisher statement:© 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Date accepted:10 September 2016
Date deposited:14 November 2016
Date of first online publication:30 September 2016
Date first made open access:30 September 2017

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