Applied Physics B

, Volume 74, Issue 4, pp 307–311

Two-octave spectral broadening of subnanojoule Cr:forsterite femtosecond laser pulses in tapered fibers

  • D.A. Akimov
  • A.A. Ivanov
  • M.V. Alfimov
  • S.N. Bagayev
  • T.A. Birks
  • W.J. Wadsworth
  • P.St.J. Russell
  • A.B. Fedotov
  • V.S. Pivtsov
  • A.A. Podshivalov
  • A.M. Zheltikov

DOI: 10.1007/s003400200811

Cite this article as:
Akimov, D., Ivanov, A., Alfimov, M. et al. Appl Phys B (2002) 74: 307. doi:10.1007/s003400200811

Abstract.

Spectral broadening of femtosecond Cr:forsterite laser pulses is enhanced due to the use of tapered fibers. Supercontinuum generation with unamplified subnanojoule femtosecond Cr:forsterite laser pulses is observed for the first time. With 40-fs 0.6-nJ pulses of 1.25-μm Cr:forsterite laser radiation coupled into a tapered fiber having a taper waist diameter of about 2 μm and a taper waist length of 90 mm, we observed the spectra spanning more than two octaves at the output of the fiber in the regime of anomalous group-velocity dispersion. This result opens the way for the creation of compact femtosecond Cr:forsterite laser plus tapered fiber systems for optical metrology and biomedical applications.

PACS: 42.65.Wi; 42.81.Qb

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • D.A. Akimov
    • 1
  • A.A. Ivanov
    • 2
  • M.V. Alfimov
    • 2
  • S.N. Bagayev
    • 3
  • T.A. Birks
    • 4
  • W.J. Wadsworth
    • 4
  • P.St.J. Russell
    • 4
  • A.B. Fedotov
    • 1
  • V.S. Pivtsov
    • 3
  • A.A. Podshivalov
    • 1
  • A.M. Zheltikov
    • 1
  1. 1.Physics Faculty, International Laser Center, M.V. Lomonosov Moscow State University, 119899 Moscow, RussiaRU
  2. 2.Center of Photochemistry, Russian Academy of Sciences, ul. Novatorov 7a, Moscow 117421, RussiaRU
  3. 3.Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, pr. Lavrent’eva 13/3, Novosibirsk 630090, RussiaRU
  4. 4.Department of Physics, University of Bath, Bath BA2 7AY, UKGB