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Matrix multi-pass scheme disk amplifier.

Evgeny Perevezentsev, Ivan Kuznetsov, Ivan Mukhin

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    Two novel multi-pass optical schemes for disk laser amplifiers were developed and calculated. These designs achieved approximately 50W average power with 10% efficiency, demonstrating significant advancements in laser amplification technology.

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    Area of Science:

    • Laser Physics
    • Optical Engineering

    Background:

    • Disk laser amplifiers are crucial for high-power laser systems.
    • Optimizing optical schemes is key to enhancing amplifier performance.

    Purpose of the Study:

    • To propose and analyze novel multi-pass optical schemes for disk laser amplifiers.
    • To minimize optical elements and account for active element lensing.

    Main Methods:

    • Theoretical calculation and simulation of two distinct multi-pass optical schemes.
    • Optimization of schemes considering minimal optical elements and active element lens effects.
    • Analysis of amplifier performance in a pulse-periodic regime.

    Main Results:

    • Achieved an average output power of approximately 50W.
    • Reached an optical-to-optical efficiency of around 10%.
    • Demonstrated a small signal gain of 200 with 64 passes.

    Conclusions:

    • The proposed multi-pass optical schemes are effective for high-power disk laser amplification.
    • The designs offer a balance between efficiency, power, and gain.
    • Further development could lead to even more efficient laser systems.