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100-kHz 22-fs Ti:sapphire regenerative amplification laser with programmable spectral control

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Abstract

An ultrashort, high-power Ti:sapphire laser operating at 100 kHz was developed. A regenerative amplifier with a cryogenically cooled Ti:sapphire crystal and a grism compressor were incorporated in the laser. For achieving a wide bandwidth of 78 nm, a programmable spectral control filter was applied to the regenerative amplifier to compensate for the gain narrowing effect. An output power of 1.4 GW with near Fourier-transform-limited pulse duration of 22 fs was achieved after minimizing a spectral phase error with the grism compressor, and the measured beam quality factor (M 2) was less than 1.2. This high-quality laser will facilitate applications requiring high-repetition rate, ultrashort, high-power laser pulses.

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Acknowledgments

This work was supported by IBS (Institute for Basic Science) under IBS-R012-D1 in Korea, and by the “GRI(GIST Research Institute)” Project through a grant provided by GIST in 2016.

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Authors and Affiliations

  1. Center for Relativistic Laser Science, Institute for Basic Science, Gwangju, 61005, Korea

    Jae Hee Sung, Hwang Woon Lee, Chang Hee Nam & Seong Ku Lee

  2. Ultraintense Laser Laboratory, Advanced Photonics Research Institute, GIST, Gwangju, 61005, Korea

    Jae Hee Sung & Seong Ku Lee

  3. Department of Physics and Photon Science, GIST, Gwangju, 61005, Korea

    Chang Hee Nam

Authors
  1. Jae Hee Sung
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  2. Hwang Woon Lee
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  3. Chang Hee Nam
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  4. Seong Ku Lee
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Correspondence to Seong Ku Lee.

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Sung, J.H., Lee, H.W., Nam, C.H. et al. 100-kHz 22-fs Ti:sapphire regenerative amplification laser with programmable spectral control. Appl. Phys. B 122, 125 (2016). https://doi.org/10.1007/s00340-016-6399-7

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  • DOI: https://doi.org/10.1007/s00340-016-6399-7

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