Topic
Brillouin scattering
About: Brillouin scattering is a research topic. Over the lifetime, 11426 publications have been published within this topic receiving 178306 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: A kinetic model was developed to obtain an analytic solution of the line shape for monatomic gases, and good agreement with the experimental data was achieved.
Abstract: Coherent Rayleigh-Brillouin scattering in gases has been studied experimentally for the first time in the kinetic regime and shown to give line shapes that differ significantly from the spontaneous Rayleigh-Brillouin scattering. A kinetic model was developed to obtain an analytic solution of the line shape for monatomic gases, and good agreement with the experimental data was achieved.
89 citations
TL;DR: The first experimental demonstration of pulse advancement with gain in optical fibers based on stimulated Brillouin scattering is reported, and it is experimentally shown that the second method produces pulses advancement with lower distortion than the first one.
Abstract: We report the first experimental demonstration of pulse advancement with gain in optical fibers based on stimulated Brillouin scattering. Two experimental configurations are investigated and compared. One is to make the pulse propagate in a region slightly detuned from a gain peak where the group velocity change is negative and the other is to make use of the large anomalous dispersion appearing between two gain peaks. We experimentally show that the second method produces pulse advancement with lower distortion than the first one.
89 citations
TL;DR: A 10 Gbit/s nonreturn-to-zero wavelength converter based on four-wave mixing in a 20 m highly nonlinear photonic crystal fiber is demonstrated and the linewidth of the converted wavelength remained very narrow.
Abstract: We demonstrate a 10?Gbit?s nonreturn-to-zero wavelength converter based on four-wave mixing in a 20?m highly nonlinear photonic crystal fiber. The tunable wavelength conversion bandwidth (3?dB) is about 100?nm. The conversion efficiency is ?16?dB when the pump power is 22.5?dBm. Phase modulation was not used to suppress the stimulated Brillouin scattering; thus the linewidth of the converted wavelength remained very narrow. The eye diagrams show that there is no additional noise during wavelength conversion. The measured power penalty at a 10?9? bit-error-rate level is about 0.7?dB.
89 citations
TL;DR: In this article, the theoretical operation of an all-optical silica fiber isolator using stimulated Brillouin scattering was demonstrated, where two pump sources copropagate through a doublemode fiber generate acoustic waves through electrostriction.
Abstract: This study demonstrates the theoretical operation of an all-optical silica fiber isolator using stimulated Brillouin scattering. Two pump sources that copropagate through a double-mode fiber generate acoustic waves through electrostriction. These acoustic waves then induce unidirectional interband optical transitions between a separate pair of signal sources. With 1 W of total input pump power, complete optical isolation is achieved with a silica rod waveguide of radius 0.67 μm over a length of approximately 12 m, with pumps operating at a wavelength of 1.55 μm and signals at 1.50 μm.
89 citations
TL;DR: A novel nonlinear optoacoustic phenomenon, that is named forward stimulated interpolarization scattering, which can perfectly match the phase velocity and axial wavelength of the torsional-radial acoustic mode tightly guided in the core of a birefringent small-core photonic crystal fiber.
Abstract: We report the observation of a novel nonlinear optoacoustic phenomenon, that we name forward stimulated interpolarization scattering. When two frequency-offset laser signals are colaunched into orthogonally polarized guided modes of a birefringent small-core (1.8 μm diameter) photonic crystal fiber, a pattern of axially moving polarization fringes is produced, with a velocity and spacing that depends on the frequency offset. At values of frequency offset in the few-GHz range, the pattern of moving fringes can perfectly match the phase velocity and axial wavelength (3.9 mm) of the torsional-radial acoustic mode tightly guided in the core. An intense optoacoustic interaction ensues, leading to efficient nonlinear exchange of power from the higher frequency (pump) mode to the orthogonally polarized lower frequency (Stokes) mode. A full-vectorial theory is developed to explain the observations.
88 citations