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An analysis of pulse propagation through a saturable absorber having excited-state absorption

Reddy, KPJ (1987) An analysis of pulse propagation through a saturable absorber having excited-state absorption. In: Optical and Quantum Electronics, 19 (4). pp. 203-208.

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Abstract

The theoretical study of the propagation of a bell-shaped light pulse through a saturable absorber having excited-state absorption is presented . Assuming that the pulse-width is longer than the first excited-state lifetime of the absorber, a general expression for the steady-state transmission of the absorber is obtained . It is shown that when the excited-state absorption cross-section is larger than the ground-state absorption cross-section (reverse saturable absorber) the absorber acts as a power limiter . An explicit expression for the change of temporal pulse-width in a single transit through the absorber is obtained, which shows that the pulsewidth increases due to the presence of excited-state absorption . An analytical expression is presented for the optimum pulse intensity at which the maximum pulse broadening occurs .

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer
Department/Centre: Division of Mechanical Sciences > Centre for Product Design & Manufacturing
Date Deposited: 30 Jun 2008
Last Modified: 19 Sep 2010 04:46
URI: http://eprints.iisc.ernet.in/id/eprint/14430

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