Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2007-05-14
Physical Review Letters 98, 243902 (2007)
Nonlinear Sciences
Pattern Formation and Solitons
5 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.98.243902
Optical gap solitons, which exist due to a balance of nonlinearity and dispersion due to a Bragg grating, can couple to acoustic waves through electrostriction. This gives rise to a new species of ``gap-acoustic'' solitons (GASs), for which we find exact analytic solutions. The GAS consists of an optical pulse similar to the optical gap soliton, dressed by an accompanying phonon pulse. Close to the speed of sound, the phonon component is large. In subsonic (supersonic) solitons, the phonon pulse is a positive (negative) density variation. Coupling to the acoustic field damps the solitons' oscillatory instability, and gives rise to a distinct instability for supersonic solitons, which may make the GAS decelerate and change direction, ultimately making the soliton subsonic.
Band Yehuda B.
Malomed Boris A.
Tasgal Richard S.
No associations
LandOfFree
Optoacoustic solitons in Bragg gratings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Optoacoustic solitons in Bragg gratings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optoacoustic solitons in Bragg gratings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-365592