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Updated: Jun 20, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Continuously tunable single-mode erbium fiber laser.

G A Ball, W W Morey

    Optics Letters
    |September 29, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    This study demonstrates continuous tuning of a fiber laser using uniform stretching of gratings and fiber. This method achieves precise wavelength control without mode hopping in erbium fiber lasers.

    Area of Science:

    • Optics and Photonics
    • Fiber Lasers
    • Bragg Gratings

    Background:

    • Fiber lasers offer versatile light sources.
    • Intracore Bragg reflectors provide wavelength-selective feedback.
    • Mode hopping limits precise wavelength control in some laser designs.

    Purpose of the Study:

    • To achieve continuous tuning of a single-mode linear-cavity fiber laser.
    • To investigate the effect of uniform stretching on laser performance.
    • To demonstrate a method for wavelength control without mode hopping.

    Main Methods:

    • Utilized a single-mode linear-cavity fiber laser with intracore Bragg reflectors.
    • Applied uniform stretching to both the gratings and the enclosed fiber.
    • Employed an erbium-doped fiber laser operating at 1.54 micrometers.

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    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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    Main Results:

    • Achieved continuous tuning of the fiber laser without mode hopping.
    • Demonstrated that stretching the gratings and fiber enables wavelength adjustment.
    • Observed that the reflected wavelength from the Bragg reflector tracks cavity resonance changes.

    Conclusions:

    • Uniform stretching of intracore Bragg gratings and fiber provides a viable method for continuous laser tuning.
    • This technique allows for precise wavelength control in erbium fiber lasers.
    • The findings enable new applications requiring tunable fiber laser sources.