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; Hamlyn, William J.; Adams, Charles S.; Hughes, Ifan G.

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.

Citation

Keaveney, J., Hamlyn, W. J., Adams, C. S., & Hughes, I. G. (2016). A single-mode external cavity diode laser using an intra-cavity atomic Faraday filter with short-term linewidth

• Journal Article Type: Article
• Acceptance Date: Sep 10, 2016
• Online Publication Date: Sep 30, 2016
• Publication Date: Sep 30, 2016
• Deposit Date: Jul 7, 2016
• Publicly Available Date: Nov 14, 2016
• Journal: Review of Scientific Instruments
• Print ISSN: 0034-6748
• Electronic ISSN: 1089-7623
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 87
• Issue: 9
• Article Number: 095111
• DOI: https://doi.org/10.1063/1.4963230
• Public URL: https://durham-repository.worktribe.com/output/1408043