Abstract
Kerr-lens mode-locking (KLM) is a powerful technique for the generation of femtosecond pulses in solid-state lasers. Mode locking with this technique is caused by self-focusing and provides a fast amplitude modulation (SAM) by a suitable intracavity aperture. SAM in KLM lasers can also be caused without aperture by the combined effects of self-focusing and a radially decreasing gain (gain guiding), which yields a saturable diffraction loss (described by a power-dependent resonator magnification) and a power-dependent averaged gain1.
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References
J. Hermann, J. Opt. Soc. Am. 11, 498 (1994).
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© 1996 Springer Science+Business Media New York
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Gatz, S., Herrmann, J. (1996). Broadening of the Cavity Parameter Region for Kerr-Lens Modelocking by Gain Guiding and Astigmatism. In: Svelto, O., De Silvestri, S., Denardo, G. (eds) Ultrafast Processes in Spectroscopy. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5897-2_13
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DOI: https://doi.org/10.1007/978-1-4615-5897-2_13
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