Simple tunable phase-locked lasers for quantum technologies

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Agnew, Nicola and Lowit, David and Arnold, Aidan S. (2024) Simple tunable phase-locked lasers for quantum technologies. Other. arXiv, Ithaca, NY. (https://doi.org/10.48550/arXiv.2404.16806)

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Abstract

In a wide range of quantum technology applications, ranging from atomic clocks to the creation of ultracold or quantum degenerate samples for atom interferometry, optimal laser sources are critical. In particular, two phase-locked laser sources with a precise difference frequency are needed for efficient coherent population trapping (CPT) clocks, gray molasses laser cooling, or driving Raman transitions. Here we show how a simple cost-effective laser diode can selectively amplify only one sideband of a fiber-electrooptically-modulated seed laser to produce moderate-power phase-locked light with sub-Hz relative linewidth and tunable difference frequencies up to ≈15GHz. The architecture is readily scalable to multiple phase-locked lasers and could conceivably be used for future on-chip compact phase-locked laser systems for quantum technologies.

ORCID iDs

Agnew, Nicola, Lowit, David and Arnold, Aidan S. ORCID logoORCID: https://orcid.org/0000-0001-7084-6958;
  • Item type:Monograph(Other)
    ID code:92858
    Dates:
    Date
    Event
    25 April 2024
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:15 May 2025 11:37
    Last modified:19 Sep 2026 00:02
    URI:https://strathprints.strath.ac.uk/id/eprint/92858
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