Collision between a dark soliton and a linear wave in an optical fiber

Abstract

We report an experimental observation of the collision between a linear wave propagating in the anomalous dispersion region of an optical fiber and a dark soliton located in the normal dispersion region. This interaction results in the emission of a new frequency component whose wavelength can be predicted using phase-matching arguments. The measured efficiency of this process shows a strong dependency with the soliton grayness and the linear wave wavelength, and is in a good agreement with theory and numerical simulations.

Cherenkov radiation and scattering of external dispersive waves by two-color solitons

“…It was also established that resonant dispersive waves affect the parameters of the solitons and can lead to dispersive wave mediated acceleration of solitons [37,43,[46][47][48][49][50]. It should be mentioned that resonant scattering of dispersive waves is also studied for dark solitons [51][52][53][54], and oscillating solitons [55][56][57][58][59][60].…”

Front-induced transitions

“…The dispersion engineering of the guided modes becomes a very important parameter as it defines the final state for the signal after the interaction with the front. Waveguide dispersion and front velocity can be adjusted to transmit 30,31,33,42,[48][49][50] or reflect 24-29, 34-36, 38, 42, 43, 51 the signal or even to trap 52,53 the signal in the front. Concepts of front induced transitions (FITs) are proposed and realized for frequency manipulation 23,24,35,36,41,43 , light stopping and optical delays 54,55 , bandwidth/time duration manipulation 30,32,52,53,56 .…”

“…It should be mentioned that the FITs were discussed in different areas of photonics, sometimes not directly related to each other. We unite in this review concepts that appeared in the research on slow light 13,31,33,38,39,41,43,[54][55][56] , silicon photonics 9,11,12,22,35 , optical analogue of event horizon 24,25 , optical solitons 42,[60][61][62] , fiber Bragg gratings 52,53,59,63 , Bragg stacks 32,64,65 , ionization fronts [44][45][46][47] and moving media 8,48,66 . Also different approaches were applied to explain the obtained effects, such as four wave mixing 25,61,62 indirect transitions in the band diagram 16, 31-33, 40, 45 , geometrical optics approximation in space and time 24,33,38,43 , slow varying approximation leading to linear Schrödinger equation (LSE) 4,34,…”