Dispersion-managed mode locking
- 1 November 1999
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 16 (11) , 1999-2004
- https://doi.org/10.1364/josab.16.001999
Abstract
The pulse shape and spectrum of ultrashort-pulse Ti:sapphire mode-locked lasers are explained by a model akin to dispersion-managed pulse propagation of optical communications. The pulse is characterized as a nonlinear Bloch wave in a periodic structure. The ultimate spectral width is limited by dispersion and mirror bandwidth and less strongly by gain filtering. The main role of Kerr-lens mode locking is to provide stability against noise buildup. One-dimensional computer simulations are sufficient to explain the major pulse-shaping dynamics. Results are compared with experiment.Keywords
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