Intensity-induced mode shift in a femtosecond laser by a change in the nonlinear index of refraction
- 15 October 2000
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 25 (20) , 1553-1555
- https://doi.org/10.1364/ol.25.001553
Abstract
The modes of the comb spectrum of a Kerr-lens mode-locked laser are frequency shifted versus the corresponding cw modes of the cavity by an intensity-induced change in the index of refraction in the Kerr medium. We demonstrate this effect and discuss novel schemes for fast frequency control of the comb spectrum.Keywords
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