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Continuous-wave mode-locked Cr(4+):YAG laser.

P M French, N H Rizvi, J R Taylor

    Optics Letters
    |October 3, 2009
    PubMed
    Summary
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    A novel chromium-doped YAG laser operates at room temperature, emitting tunable light between 1.37 and 1.51 micrometers. This study reports the first successful mode locking of this specific laser type.

    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Materials Science

    Background:

    • Chromium-doped Yttrium Aluminum Garnet (Cr(4+):YAG) lasers are known for their tunable emission.
    • Room-temperature operation is desirable for practical laser applications.
    • Mode locking is a technique to generate ultrashort laser pulses.

    Purpose of the Study:

    • To describe a continuous-wave (cw) room-temperature Cr(4+):YAG laser.
    • To report the successful mode locking of this novel laser system for the first time.

    Main Methods:

    • Fabrication and characterization of a Cr(4+):YAG laser crystal.
    • Implementation of a continuous-wave (cw) laser cavity.
    • Application of mode-locking techniques to the Cr(4+):YAG laser.

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    Last Updated: Jun 19, 2026

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

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    Published on: November 22, 2019

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    Published on: February 28, 2016

    Main Results:

    • The Cr(4+):YAG laser demonstrated tunable emission from 1.37 to 1.51 micrometers.
    • Continuous-wave (cw) room-temperature operation was achieved.
    • Successful mode locking of the Cr(4+):YAG laser was demonstrated.

    Conclusions:

    • A functional cw room-temperature Cr(4+):YAG laser has been developed.
    • The successful mode locking of this laser opens possibilities for generating ultrashort pulses in this wavelength range.
    • This work represents a significant advancement in tunable, mode-locked laser technology.