Theory of laser giant pulsing by a saturable absorber

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1063/1.1703087
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  1. National Research Council of Canada
FormatText, Article
Journal titleJournal of Applied Physics
ISSN0021-8979
1089-7550
Volume36
Issue5
Pages1562–1566
Abstract
Several experimental demonstrations of laser giant pulsing using a saturable absorber inside the laser cavity as a fast switch have recently been reported. In the present work giant pulse parameters such as pulse rise and fall times and peak power are calculated as a function of σ, the ratio of absorber to laser ion cross sections; nai, the normalized inversion prior to switching; and the laser mirror transmission Tr. It is shown that there is an optimum Tr for the extraction of maximum peak power. A criterion for the minimum σ for giant pulsing to occur is derived. The largest output occurs when σ → ∞ in which case the theory approaches that of Wagner and Lengyel. Some numerical examples are presented as well as a discussion of the range of validity of the theory.
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PublisherAIP Publishing
LanguageEnglish
Peer reviewedYes
NPARC number23002799
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