The role of the self-steepening effect in soliton compression due to cross-phase modulation by dispersive waves
- Pickartz, Sabrina
2010 Mathematics Subject Classification
- 78A60 78M22
2008 Physics and Astronomy Classification Scheme
- 42.65.-k 42.81.Dp 42.65.Re 05.45.Yv
- Ultrashort pulses, pulse compression, soliton, optical event horizons
We consider the compression and amplification of an ultrashort soliton pulse through the interaction with a weaker velocity-matched dispersive wave, in the so-called optical event horizon regime. We demonstrate that in this interaction scheme the self-steepening effect plays the key role in producing a strong soliton compression. While the interaction between the two pulses is mediated through cross phase modulation, the self-steepening effect produces an energy exchange, which enhances soliton compression. We provide numerical results and an analytical expression for energy transfer and compression rate.