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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Noncritically phase-matched Ti:sapphire-pumped femtosecond optical parametric oscillator based on RbTiOAsO(4).

D T Reid, M Ebrahimzadeh, W Sibbett

    Optics Letters
    |October 27, 2009
    PubMed
    Summary

    A new nonlinear material, RbTiOAsO(4), enables efficient operation of a Ti:sapphire-laser-pumped femtosecond optical parametric oscillator. This advanced laser system achieves short pulse durations and broad tuning ranges for versatile applications.

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    Area of Science:

    • Nonlinear optics
    • Laser physics
    • Materials science

    Background:

    • Femtosecond optical parametric oscillators (OPOs) are crucial for generating tunable ultrashort laser pulses.
    • Developing new nonlinear materials is essential for improving OPO performance, including efficiency and tuning range.
    • Titanium-sapphire (Ti:sapphire) lasers are widely used as pump sources for OPOs due to their broad wavelength tunability and high peak power.

    Purpose of the Study:

    • To investigate the performance of a novel nonlinear material, RbTiOAsO(4), in a Ti:sapphire-laser-pumped femtosecond optical parametric oscillator.
    • To characterize the oscillation thresholds, output powers, pulse durations, and tuning ranges of the developed OPO system.
    • To demonstrate the potential of RbTiOAsO(4) as a viable material for advanced femtosecond laser sources.

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    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

    Published on: July 12, 2017

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    Last Updated: Jun 19, 2026

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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    Published on: May 30, 2014

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
    10:17

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

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    Main Methods:

    • Fabrication and integration of a femtosecond optical parametric oscillator utilizing the RbTiOAsO(4) nonlinear crystal.
    • Pumping the OPO with a Ti:sapphire laser to generate signal and idler waves.
    • Employing intracavity prisms for dispersion compensation to achieve transform-limited pulses.
    • Utilizing noncritical phase matching to achieve broad tuning capabilities.

    Main Results:

    • Oscillation was achieved with low pump powers as low as 50 mW.
    • Maximum output powers of 185 mW were measured.
    • Transform-limited pulses with durations under 70 femtoseconds were generated.
    • A broad tuning range was demonstrated: 110 nm for the signal and 330 nm for the idler, achieved through pump tuning and noncritical phase matching.

    Conclusions:

    • The new nonlinear material RbTiOAsO(4) demonstrates excellent performance in a Ti:sapphire-laser-pumped femtosecond optical parametric oscillator.
    • The developed OPO system offers efficient operation, ultrashort pulse generation, and wide tunability, making it suitable for various scientific applications.
    • RbTiOAsO(4) represents a promising material for the development of next-generation femtosecond laser sources.