Understanding Raman-shifting multipeak states in photonic crystal fibers: two convergent approaches.
In this Letter we give theoretical explanations for the recent observations of the excitation of Raman-shifting pulse pairs in solid-core photonic crystal fibers. The formation of these pairs is surprisingly common in the deep anomalous dispersion regime of a large variety of highly nonlinear optical fibers, away from zero group-velocity dispersion points. We have developed two different theoretical models, which agree very well in their conclusions. A qualitative and a quantitative explanation of pair formation is provided, and the existence of multipeak states is predicted.
Hause
Alexander
A
Universität Rostock, Institut für Physik, 18051 Rostock, Germany. alexander.hause2@uni-rostock.de
Tran
Truong X
TX
Biancalana
Fabio
F
Podlipensky
Alexander
A
Russell
Philip St J
PS
Mitschke
Fedor
F