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Related Experiment Video

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

Scalable, end-pumped, diode-laser-pumped laser.

T Y Fan, A Sanchez, W E Defeo

    Optics Letters
    |September 16, 2009
    PubMed
    Summary

    This study demonstrates a new method for scaling end-pumped lasers by using multiple diode-laser arrays to boost pump power. This technique achieved high efficiency and can be applied to various laser types.

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    Area of Science:

    • Laser physics
    • Optical engineering

    Background:

    • Scaling end-pumped lasers is crucial for higher power output.
    • Current methods face limitations in increasing pump power density.

    Purpose of the Study:

    • To demonstrate a novel technique for scaling end-pumped lasers.
    • To investigate the potential for increased pump power in a fixed mode volume.

    Main Methods:

    • Utilized three diode-laser arrays to end-pump a single Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser.
    • Focused the combined pump power into the laser medium.

    Main Results:

    • Achieved diffraction-limited laser output.
    • Obtained a high slope efficiency of 58%.

    Conclusions:

    • The demonstrated multi-array pumping scheme offers a viable path for significantly increasing pump power.
    • This method is particularly beneficial for low-gain, quasi-three-level, or tunable laser systems.

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