Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 61: Ultrashort Laser Pulses II
Q 61.3: Vortrag
Donnerstag, 26. März 2015, 15:00–15:15, K/HS2
Controlling rogue waves in fiber-supercontinua — Ayhan Tajalli1, •Alexander Pape1, Carsten Brée2, Shalva Amiranashvili2, Günter Steinmeyer3, Uwe Morgner1, and Ayhan Demircan1 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, Hannover — 2Weierstraß-Institut für Angewandte Analysis und Stochastik, Mohrenstr. 39, 10117 Berlin — 3Max-Born-Institut (MBI), Max-Born-Straße 2a, 12489 Berlin
The concept of rogue waves comes from the observation of isolated large amplitude waves in the deep ocean. These waves appear more often than expected for a normal Gaussian distribution of statistical events. The discovery of an analogy to extreme events in the supercontinuum of optical fibers was a turning point that inspired research in a large number of different physical wave systems. Various models have been derived to describe the generation mechanism, reaching from closed mathematical solutions of Akhmediev breathers or Peregrine solitons to complex soliton-soliton collision processes. Here, we present experimentally and numerically how to control the appearance of rogue waves in optical supercontinua by inducing a suitably designed enhanced interaction of solitons with background radiation. In this way, we can demonstrate how to create or suppress rogue events in a complete deterministic fashion. Moreover we show that a weak control wave may not only serve to thwart rogue wave generation in a single case, but may actually serve to modify the 'weather' in rogue wave dynamics by actively manipulating the global event statistics. This mechanism is universal and applies to many nonlinear systems.