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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 236–239

Generation of picosecond pulses directly from a 100 W, burst-mode, doping-managed Yb-doped fiber amplifier

P. Elahi, S. Yılmaz, Y. B. Eldeniz, and F. Ö. Ilday  »View Author Affiliations

Optics Letters, Vol. 39, Issue 2, pp. 236-239 (2014)

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Burst-mode laser systems offer increased effectiveness in material processing while requiring lower individual pulse energies. Fiber amplifiers operating in this regime generate low powers in the order of 1 W. We present a Yb-doped fiber amplifier, utilizing doping management, that scales the average power up to 100 W. The laser system produces bursts at 1 MHz, where each burst comprises 10 pulses with 10 μJ energy per pulse and is separated in time by 10 ns. The high-burst repetition rate allows substantial simplification of the setup over previous demonstrations of burst-mode operation in fiber lasers. The total energy in each burst is 100 μJ and the average power achieved within the burst is 1 kW. The pulse evolution in the final stage of amplification is initiated as self-similar amplification, which is quickly altered as the pulse spectrum exceeds the gain bandwidth. By prechirping the pulses launched into the amplifier, 17 ps long pulses are generated without using external pulse compression. The peak power of the pulses is 0.6MW.

© 2014 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.3615) Lasers and laser optics : Lasers, ytterbium
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 23, 2013
Revised Manuscript: November 29, 2013
Manuscript Accepted: November 29, 2013
Published: January 6, 2014

P. Elahi, S. Yılmaz, Y. B. Eldeniz, and F. Ö. Ilday, "Generation of picosecond pulses directly from a 100 W, burst-mode, doping-managed Yb-doped fiber amplifier," Opt. Lett. 39, 236-239 (2014)

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