Nonlinear multimode fibers for high power fiber lasers
04 Pubblicazione in atti di convegno
Wabnitz S., Krupa K., Modotto D., Millot G., Kharenko D. S., Gonta V. A., Podivilov E. V., Babin S., Tonello A., Barthélémy A., Couderc V.
In order to fully exploit laser beam dynamics in multimode fibers for applications to spatiotemporal laser beam mode-locking, it is necessary to accurately determine the conditions for the occurrence of the effect, by optimizing the spatial and temporal properties of the input laser pulses. We will describe a series of recent experiments that permit to unveil the physical mechanism of Kerr-beam self-cleaning, based on a complex cascade of parametric wave mixing processes.