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Proceedings Paper

Enhanced spectral broadening and spectral distortions of short laser pulses in holey fibers
Author(s): Andrei B. Fedotov; Alexander P. Tarasevitch; Sergei N. Bagayev; Dietrich von der Linde; V. S. Pivtsov; Alexei M. Zheltikov
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Paper Abstract

The influence of the structure of the holey-fiber cladding on the spectral broadening of femtosecond laser pulses is experimentally studied. These experiments demonstrate that the spectral broadening of 70-fs pulses of 800 nm Ti:sapphire laser radiation transmitted through 2- and 3- micrometers -pitch holey fibers can be enhanced by a factor of about 1.5 by increasing the air-filling fraction of the fiber cladding from 16 up to 65%. The main physical factors influencing the phase distribution and coherence properties of broadly spanning frequency combs produced with the use of holey fibers are considered. Phase shifts and spectral distortions arising due to dispersion effects, modulation instabilities, and shock waves of pulse envelopes are explored, and general recipes to reduce the influence of these effects by means of fiber optics are discussed.

Paper Details

Date Published: 30 April 2002
PDF: 12 pages
Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); doi: 10.1117/12.464182
Show Author Affiliations
Andrei B. Fedotov, M.V. Lomonosov Moscow State Univ. (Russia)
Alexander P. Tarasevitch, Univ. Essen (Germany)
Sergei N. Bagayev, Institute of Laser Physics (Russia)
Dietrich von der Linde, Univ. Essen (Germany)
V. S. Pivtsov, Institute of Laser Physics (Russia)
Alexei M. Zheltikov, M.V. Lomonosov Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 4644:
Seventh International Conference on Laser and Laser-Information Technologies

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