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Updated: Jun 6, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Diode laser mode selection using a long external cavity.

L Viana, S S Vianna, M Oriá

    Applied Optics
    |November 12, 2010
    PubMed
    Summary
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    A new diode laser system uses a long external cavity to precisely control its operating mode. This allows for a 10 GHz frequency scan, enabling successful neutral atom laser cooling experiments.

    Area of Science:

    • Atomic, Molecular, and Optical Physics
    • Laser Physics and Photonics

    Background:

    • Diode lasers often operate in multiple longitudinal modes, complicating precise frequency control.
    • Controlling the longitudinal mode is crucial for applications like laser cooling and spectroscopy.

    Purpose of the Study:

    • To develop a simple and practical method for controlling diode laser longitudinal mode operation.
    • To demonstrate continuous frequency scanning capabilities for advanced experiments.

    Main Methods:

    • Implementing a long external cavity coupled to a diode laser.
    • Adjusting the external cavity length to select specific longitudinal modes.
    • Simultaneously sweeping laser current and external cavity length for frequency tuning.

    Main Results:

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    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

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    Last Updated: Jun 6, 2026

    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
    09:10

    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

    Published on: April 24, 2014

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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    12:57

    Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

    Published on: October 13, 2017

    • Selective oscillation in different longitudinal modes was achieved by controlling external cavity length.
    • Continuous frequency scanning exceeding 10 GHz was demonstrated.
    • The developed laser system was successfully applied to neutral atom laser cooling.

    Conclusions:

    • The external cavity method offers a practical approach to diode laser mode control.
    • The system provides a versatile tunable laser source for atomic physics applications.
    • This technique enhances the feasibility of experiments requiring precise laser frequency manipulation.