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Updated: Jun 19, 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-pumped, continuous-wave, single-mode, tunable Cr(3+):LiSrAlF(6) ring laser.

I Zawischa, A I Ferguson

    Optics Letters
    |October 30, 2009
    PubMed
    Summary
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    We developed a tunable, solid-state ring laser using chromium-doped lithium strontium aluminum fluoride (Cr3+:LiSrAlF6). This laser operates continuously, offers a wide tuning range, and demonstrates high frequency stability for spectroscopy applications.

    Area of Science:

    • Laser Physics
    • Quantum Optics
    • Materials Science

    Background:

    • Development of tunable, stable laser sources is crucial for high-resolution spectroscopy.
    • Chromium-doped crystalline materials offer potential for new laser functionalities.

    Purpose of the Study:

    • To demonstrate an all-solid-state, tunable, single-frequency, continuous-wave Cr(3+):LiSrAlF(6) ring laser.
    • To characterize its performance, including tuning range and frequency stability.
    • To showcase its application in Doppler-free saturation spectroscopy.

    Main Methods:

    • Construction of a Cr(3+):LiSrAlF(6) ring laser.
    • Diode laser pumping (360 mW).
    • Characterization of tuning range (814-892 nm) and free-running frequency stability (60 kHz rms).

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  • Application in Doppler-free saturation spectroscopy of the cesium D2 line.

    • Main Results:

    • An all-solid-state, tunable, single-frequency, continuous-wave Cr(3+):LiSrAlF(6) ring laser was successfully developed.
    • The laser exhibited a tuning range from 814 to 892 nm.
    • A free-running frequency stability of 60 kHz rms relative to a reference cavity was achieved.
    • The laser was effectively used for Doppler-free saturation spectroscopy of the cesium D2 line.

    Conclusions:

    • The Cr(3+):LiSrAlF(6) ring laser is a promising tunable, stable light source for spectroscopic applications.
    • Potential for further frequency stabilization using standard servo electronics exists.
    • The demonstrated spectroscopy of the cesium D2 line validates the laser's utility.