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Optics Letters

Optics Letters


  • Vol. 29, Iss. 2 — Jan. 15, 2004
  • pp: 198–200

Regenerative amplification of femtosecond laser pulses in Ti:sapphire at multikilohertz repetition rates

Nikolai Zhavoronkov and Georg Korn  »View Author Affiliations

Optics Letters, Vol. 29, Issue 2, pp. 198-200 (2004)

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We have generated and applied noncoherent x-ray radiation in an all-solid-state laser system operating at repetition rates up to 20 kHz. Based on a model that takes into account the strong thermal loading of the Ti:sapphire rod, a laser cavity with low sensitivity to thermal lensing was chosen. With a maximum pump power of 80 W, an output power as high as 27 W was obtained in gain-switched operation, and, with a seeding from a femtosecond oscillator, 60-fs, 0.8-mJ (8-W) pulses at 10 kHz and 0.32-mJ (6.5-W) pulses at 20 kHz were generated. High power femtosecond output was used to generate x-ray continuum radiation up to 5 keV from a liquid-gallium jet target.

© 2004 Optical Society of America

OCIS Codes
(320.7090) Ultrafast optics : Ultrafast lasers
(350.5400) Other areas of optics : Plasmas

Nikolai Zhavoronkov and Georg Korn, "Regenerative amplification of femtosecond laser pulses in Ti:sapphire at multikilohertz repetition rates," Opt. Lett. 29, 198-200 (2004)

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