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

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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.

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Authors and Affiliations

  1. Centre Interdisciplinaire de Recherche Ions Lasers (CIRIL), UMR 6637 CNRS/CEA/ISMRA, Université de Caen, 6 Blvd Maréchal Juin, 14050 Caen Cedex, France, , , , , , FR

    V.G. Shcherbitsky, S. Girard, M. Fromager & R. Moncorgé

  2. International Laser Center (ILC), 65 F. Scoriny av., Minsk, Belarus, , , , , , BY

    N.V. Kuleshov

  3. Institute of Solid-State and Semiconductor Physics, National Academy of Science, 17 P. Brovki str., Minsk, Belarus, , , , , , BY

    V.I. Levchenko & V.N. Yakimovich

  4. LETI-CEA Techniques Avancées, CENG 85X, 38041 Grenoble, France, , , , , , FR

    B. Ferrand

Authors
  1. V.G. Shcherbitsky
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  2. S. Girard
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  3. M. Fromager
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  4. R. Moncorgé
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  5. N.V. Kuleshov
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  6. V.I. Levchenko
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  7. V.N. Yakimovich
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  8. B. Ferrand
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Additional information

Received: 21 November 2001 / Revised version: 22 January 2002 / Published online: 14 March 2002

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Shcherbitsky, V., Girard, S., Fromager, M. et al. Accurate method for the measurement of absorption cross sections of solid-state saturable absorbers . Appl Phys B 74, 367–374 (2002). https://doi.org/10.1007/s003400200809

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  • DOI: https://doi.org/10.1007/s003400200809

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