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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 22402–22409

Generation of 120-fs laser pulses at 1-GHz repetition rate derived from continuous wave laser diode

Atsushi Ishizawa, Tadashi Nishikawa, Akira Mizutori, Hidehiko Takara, Hidetoshi Nakano, Tetsuomi Sogawa, Atsushi Takada, and Masafumi Koga  »View Author Affiliations

Optics Express, Vol. 19, Issue 23, pp. 22402-22409 (2011)

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We report the first demonstration of continuous-wave laser diode based 100-fs-class pulse lasers operating at a gigahertz repetition rate without a mode-locking technique. We describe the performance of a 1-W, 120-fs optical pulse train at 1 GHz and a 1-W, 80-fs optical pulse train at 250 MHz by using a simple configuration. Sub-100-fs pulse durations are achieved by using a progressive expansion of the spectrum in the self-phase modulation process in an erbium-doped fibre amplifier. Our scheme can achieve continuously tunable repetition rate in the range of ±20%, and develop powerful tools for use in nanomechanical systems and nanobiotechnology.

© 2011 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(140.3510) Lasers and laser optics : Lasers, fiber
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.5520) Ultrafast optics : Pulse compression
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

Original Manuscript: August 22, 2011
Revised Manuscript: October 5, 2011
Manuscript Accepted: October 5, 2011
Published: October 24, 2011

Virtual Issues
Vol. 7, Iss. 1 Virtual Journal for Biomedical Optics

Atsushi Ishizawa, Tadashi Nishikawa, Akira Mizutori, Hidehiko Takara, Hidetoshi Nakano, Tetsuomi Sogawa, Atsushi Takada, and Masafumi Koga, "Generation of 120-fs laser pulses at 1-GHz repetition rate derived from continuous wave laser diode," Opt. Express 19, 22402-22409 (2011)

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