Modulation instability of the stimulated Brillouin scattering in fibers in a presence of acoustic diffraction
Source: Optik International Journal for Light and Electron Optics, Volume 114, Number 3, 1 June 2003 , pp. 134-138(5)
Publisher: Urban & Fischer
Abstract:An influence of acoustic wave diffraction on the modulation instability of the backward stimulated Brillouin scattering in fibers is numerically investigated, when a small feedback for the Stokes wave is present. The cases of acoustic waveguide and anti-waveguide fibers are considered. It is shown that a presence of acoustic diffraction may expand the region of occurrence of modulation instability and may lead to 2-5 times increasing the peak amplitude of output Stokes pulses. In this case, a stable train of short powerful Stokes pulses of nanosecond duration is produced at the output.
Document Type: Research article
Publication date: 2003-06-01