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Proceedings Paper

Spatiotemporal dynamics of autosolitons in lasers
Author(s): Alexander M. Sergeev; Evgeny V. Vanin
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Paper Abstract

We are developing a concept where the ultrashort pulse laser operation can be described and understood in terms of spatio-temporal dynamics of light pulses in equivalent continuous media. This concept is based on studying the evolution of a seeding pulse with the duration less than the laser round trip time and treats the mode-locking process as a temporal squeezing of the pulse in the equivalent non-linear medium. The set-up of the steady-state lasing corresponds to the formation of a stable localized wave packet, a so-called autosoliton, starting from arbitrary initial field distributions. In this report, we classify the autosolitons with respect to key ultrashort lasing parameters such as gain and absorption saturation, gain band width and the proximity of the group-velocity dispersion to zero. We distinguish between solitons with weak absorption saturation, solitons with strong absorption saturation, and superluminous solitons. The scenarios of autosoliton formation are investigated by analytical and computational methods and an attempt is made to put the investigated soliton processes in accordance with the known regimes of femtosecond laser operation.

Paper Details

Date Published: 10 April 1995
PDF: 10 pages
Proc. SPIE 2377, Generation, Amplification, and Measurement of Ultrashort Laser Pulses II, (10 April 1995); doi: 10.1117/12.206428
Show Author Affiliations
Alexander M. Sergeev, Institute of Applied Physics (Russia)
Evgeny V. Vanin, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 2377:
Generation, Amplification, and Measurement of Ultrashort Laser Pulses II
Christopher P. P. Barty; Frank W. Wise, Editor(s)

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