Applied Physics B

, Volume 74, Issue 4, pp 367–374

Accurate method for the measurement of absorption cross sections of solid-state saturable absorbers

  • V.G. Shcherbitsky
  • S. Girard
  • M. Fromager
  • R. Moncorgé
  • N.V. Kuleshov
  • V.I. Levchenko
  • V.N. Yakimovich
  • B. Ferrand

DOI: 10.1007/s003400200809

Cite this article as:
Shcherbitsky, V., Girard, S., Fromager, M. et al. Appl Phys B (2002) 74: 367. doi:10.1007/s003400200809

Abstract.

A rigorous approach taking into account both the temporal and spatial distributions of the pulsed probe beam used for transmission measurements of solid-state saturable absorbers is applied to characterise these absorbers accurately. The use of this method can significantly influence the resulting value for the ground-state absorption cross section. It also permits us to avoid the introduction of an artificial excited-state absorption in systems where, according to energy-level diagrams, no such loss should occur. This is illustrated in the case of passive Q-switchers for 1.5-μm lasers such as Co2+-doped LaMgAl11O19 and MgAl2O4 and Co2+- or Cr2+-doped ZnSe and ZnS.

PACS: 42.55.Rz; 42.60.Jf; 42.60.Gd; 78.20-e

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • V.G. Shcherbitsky
    • 1
  • S. Girard
    • 1
  • M. Fromager
    • 1
  • R. Moncorgé
    • 1
  • N.V. Kuleshov
    • 2
  • V.I. Levchenko
    • 3
  • V.N. Yakimovich
    • 3
  • B. Ferrand
    • 4
  1. 1.Centre Interdisciplinaire de Recherche Ions Lasers (CIRIL), UMR 6637 CNRS/CEA/ISMRA, Université de Caen, 6 Blvd Maréchal Juin, 14050 Caen Cedex, FranceFR
  2. 2.International Laser Center (ILC), 65 F. Scoriny av., Minsk, BelarusBY
  3. 3.Institute of Solid-State and Semiconductor Physics, National Academy of Science, 17 P. Brovki str., Minsk, BelarusBY
  4. 4.LETI-CEA Techniques Avancées, CENG 85X, 38041 Grenoble, FranceFR