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    Area of Science:

    • Laser Physics
    • Nonlinear Optics
    • Materials Science

    Background:

    • Divided-pulse amplification (DPA) is crucial for increasing peak power in diode-pumped ytterbium-doped amplifiers.
    • It overcomes limitations of single-pulse amplification concerning parasitic nonlinear effects and damage thresholds.
    • DPA allows amplification of picosecond pulses in solid-state amplifiers with restricted bandwidth.

    Purpose of the Study:

    • To demonstrate DPA in a flashlamp-pumped Nd:YAG amplifier for the first time.
    • To assess the feasibility of DPA in a different amplifier architecture.
    • To achieve high pulse energy using DPA in Nd:YAG.

    Main Methods:

    • Implementing divided-pulse amplification (DPA) technique.
    • Utilizing a flashlamp-pumped Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) amplifier.
    • Amplifying picosecond pulses.

    Main Results:

    • Successful demonstration of DPA in a flashlamp-pumped Nd:YAG amplifier.
    • Achieved a combined pulse energy of 167 mJ.
    • Validated DPA's applicability beyond ytterbium-doped systems.

    Conclusions:

    • Divided-pulse amplification (DPA) is effective in flashlamp-pumped Nd:YAG lasers.
    • This method enables higher pulse energies than previously possible with this amplifier type.
    • DPA offers a viable route for scaling peak power in diverse solid-state laser systems.