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Related Experiment Video

Updated: Jun 19, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

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

Published on: July 12, 2017

Er(3+):Yb(3+)-codoped fiber distributed-feedback laser.

J T Kringlebotn, J L Archambault, L Reekie

    Optics Letters
    |October 27, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    This study presents the first fiber distributed-feedback laser utilizing a single Bragg grating. The laser achieves robust single-frequency operation in erbium-doped fiber, demonstrating a novel approach for laser development.

    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Laser Physics

    Background:

    • Fiber lasers offer advantages in beam quality and robustness.
    • Distributed-feedback (DFB) lasers provide narrow linewidth and stable single-mode operation.
    • Erbium-doped fibers are crucial for telecommunication wavelengths.

    Purpose of the Study:

    • To demonstrate the first fiber distributed-feedback laser using a single Bragg grating.
    • To achieve robust single-frequency operation in an Er(3+)-doped fiber laser.
    • To explore methods for creating the necessary phase shift for DFB operation.

    Main Methods:

    • Directly writing a single Bragg grating into a 2-cm-long Er(3+)-doped fiber codoped with Yb(3+).
    • Implementing a fiber DFB laser configuration.

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    Writing Bragg Gratings in Multicore Fibers
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  • Utilizing either one end reflector or local heating of the grating center to induce a phase shift.

    • Main Results:

    • Successful fabrication of a fiber DFB laser with a single Bragg grating.
    • Achieved robust single-frequency operation.
    • Demonstrated two distinct methods for creating the required phase shift for laser oscillation.

    Conclusions:

    • A novel fiber DFB laser design using a single Bragg grating has been successfully demonstrated.
    • Robust single-frequency operation is achievable through simple phase shift implementation.
    • This work paves the way for compact and efficient fiber laser sources.