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Abstract <p>A femtosecond laser pulse oscillator based on a Yb:KGW crystal with a repetition rate of 78 MHz and an average power of 2.3 W has been developed. The generated pulse duration is approximately 170 fs with a spectral width at half maximum of approximately 7 nm, with a central wavelength of 1031 nm. High stability of average power and diffraction-limited quality of radiation allow the device to be used as a precision source of femtosecond pulses for various high-power amplifiers, including widely used amplifiers based on Yb:YAG crystals.</p>

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Femtosecond Laser Oscillator on Yb:KGW Crystal

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • S. A. Chizhov,
  • I. I. Kuznetsov,
  • O. V. Palashov

摘要

Abstract

A femtosecond laser pulse oscillator based on a Yb:KGW crystal with a repetition rate of 78 MHz and an average power of 2.3 W has been developed. The generated pulse duration is approximately 170 fs with a spectral width at half maximum of approximately 7 nm, with a central wavelength of 1031 nm. High stability of average power and diffraction-limited quality of radiation allow the device to be used as a precision source of femtosecond pulses for various high-power amplifiers, including widely used amplifiers based on Yb:YAG crystals.