Cascaded self-compression of femtosecond pulses in filaments
- Brée, Carsten
- Bethge, Jens
- Skupin, Stefan
- Bergé, Luc
- Demircan, Ayhan
- Steinmeyer, Günter
2010 Mathematics Subject Classification
- 78A60 81V80 35Q55 37K40
2008 Physics and Astronomy Classification Scheme
- 42.65.Tg 42.65.-k 52.38.Hb 42.68.Ay
- Nonlinear Schrödinger Equations, Optical self-focusing, Ultrashort pulse propagation
Highly nonlinear wave propagation scenarios hold the potential to serve for energy concentration or pulse duration reduction of the input wave form, provided that a small range of input parameters be maintained. In particular when phenomena like rogue-wave formation or few-cycle optical pulses generation come into play, it becomes increasingly difficult to maintain control of the waveforms. Here we suggest an alternative approach towards the control of waveforms in a highly nonlinear system. Cascading pulse self-compression cycles at reduced nonlinearity limits the increase of input parameter sensitivity while still enabling an enhanced compression effect. This cascaded method is illustrated by experiments and in numerical simulations of the Nonlinear Schrödinger Equation, simulating the propagation of short optical pulses in a self-generated plasma.
- New J. Phys., 12 (2010) pp. 093046/1--093046/11 .