Simultaneous two-photon resonant optical laser locking (STROLLing) in the hyperfine Paschen-Back regime

Mathew, Renju S; Ponciano-Ojeda, Francisco; Keaveney, James; Whiting, Daniel; Hughes, Ifan

Abstract

We demonstrate a technique to lock simultaneously two laser frequencies to each step of a two-photon transition in the presence of a magnetic field sufficiently large to gain access to the hyperfine Paschen–Back regime. A ladder configuration with the 5S1/2, 5P3/2, and 5D5/2 terms in a thermal vapor of Rb87 atoms is used. The two lasers remain locked for more than 24 h. For the sum of the laser frequencies, which represents the stability of the two-photon lock, we measure a frequency instability of less than the Rb D2 natural linewidth of 6 MHz for nearly all measured timescales.

Citation

Mathew, R. S., Ponciano-Ojeda, F., Keaveney, J., Whiting, D., & Hughes, I. (2018). Simultaneous two-photon resonant optical laser locking (STROLLing) in the hyperfine Paschen-Back regime. Optics Letters, 43(17), 4204-4207. https://doi.org/10.1364/ol.43.004204

• Journal Article Type: Article
• Acceptance Date: Aug 1, 2018
• Online Publication Date: Aug 24, 2018
• Publication Date: Aug 24, 2018
• Deposit Date: Aug 22, 2018
• Publicly Available Date: Sep 18, 2018
• Journal: Optics Letters
• Print ISSN: 0146-9592
• Electronic ISSN: 1539-4794
• Publisher: Optica
• Peer Reviewed: Peer Reviewed
• Volume: 43
• Issue: 17
• Pages: 4204-4207
• DOI: https://doi.org/10.1364/ol.43.004204
• Public URL: https://durham-repository.worktribe.com/output/1322407
• Related Public URLs: https://arxiv.org/abs/1807.00853