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High-efficiency multipass Ti:sapphire amplifiers for a continuous-wave single-mode laser.

P Georges, F Estable, F Salin

    Optics Letters
    |September 24, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    We achieved high gain amplification of a continuous-wave single-mode ring dye laser using a Ti:sapphire passive multipass amplifier. This method generated high-peak-power ultraviolet pulses for advanced laser applications.

    Area of Science:

    • Laser Physics
    • Nonlinear Optics
    • Materials Science

    Background:

    • Continuous-wave (CW) single-mode lasers are crucial for various scientific applications.
    • Ti:sapphire is a widely used gain medium for high-power lasers.
    • Amplification techniques are essential for increasing laser pulse energy and peak power.

    Purpose of the Study:

    • To present the amplification of a CW single-mode ring dye laser in Ti:sapphire.
    • To compare the performance of a passive multipass amplifier with a regenerative amplifier.
    • To generate high-peak-power ultraviolet (UV) pulses via second-harmonic generation.

    Main Methods:

    • Amplification of a CW single-mode ring dye laser using a Ti:sapphire passive multipass amplifier.
    • Development and comparison with a regenerative amplifier.

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  • Second-harmonic generation (SHG) for UV pulse generation.

    • Main Results:

    • Achieved a peak gain of 2 x 10^6 in the passive multipass amplifier.
    • Generated 20-nsec pulses with 0.7-mJ energy at 780 nm.
    • Successfully produced high-peak-power UV pulses from the amplified laser.

    Conclusions:

    • The passive multipass amplifier offers advantages for Ti:sapphire-based laser amplification.
    • The developed system enables efficient generation of high-energy, high-peak-power laser pulses.
    • The technique is suitable for producing UV pulses for diverse applications.