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.
© 2000 Optical Society of America
(190.2640) Nonlinear optics : Stimulated scattering, modulation, etc.
(190.3270) Nonlinear optics : Kerr effect
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.0320) Ultrafast optics : Ultrafast optics
Jörn Stenger and Harald R. Telle, "Intensity-induced mode shift in a femtosecond laser by a change in the nonlinear index of refraction," Opt. Lett. 25, 1553-1555 (2000)