The distributed Brillouin gain profile of an ultrathin optical microwire made of chalcogenide-glass is characterized using a phase-modulated correlation-domain measurement technique. Method resolves variations of uniformity below 5% along a 13 cm-long microwire. OCIS codes: (290.5900) Scattering, stimulated Brillouin, (060.2270) Fiber characterization

We report on an experimental analysis of stimulated Brillouin scattering (SBS) in a 20-m-long highly birefringent microstructure fiber for sensing applications. In particular, an experimental setup based on Brillouin optical frequency-domain analysis, operating at a wavelength of 1550 nm, has been employed in order to analyze the distribution of Brillouin frequency shift along the fiber, as wel...

A fundamental limitation in high-resolution and long-range Brillouin optical timedomain systems is overcome in this paper, enabling 500k resolved points over 25 km of SMF with 5 cm spatial resolution in a usual acquisition time. OCIS codes: (060.2370) Fiber optics sensors; (290.5900) Scattering, stimulated Brillouin; (060.4370) Nonlinear optics, fibers.

Optimal gain spectra minimizing distortion and enhancing delaying efficiency in linear slow light systems are predicted and experimentally validated by shaping the gain spectral profile in a Brillouin fiber amplifier. OCIS codes: (060.4370) Nonlinear optics, fibers; (290.5900) Scattering, stimulated Brillouin; (350.5500) Propagation

An extremely simple technique is demonstrated to realize tunable delays in optical fibers controlled by the signal average power. The system self-adapts in real time to the Brillouin fiber properties and to the signal bandwidth. ©2008 Optical Society of America OCIS codes: (060.4370) Nonlinear optics, fibers; (290.5900) Scattering, stimulated Brillouin; (350.5500) Propagation

we investigate the temperature-dependences of the Brillouin frequency shift in three different kind of single-mode fibers using a heterodyne method for sensing temperature. Positive dependences coefficients of 0.77, 0.56 and 1.45MHz/0C are demonstrated for 25 km long single-mode fiber, 10 km long non-zero dispersion shifted fiber and 100 m photonic crystal fiber, respectively. The results indic...

We present extensive stimulated Brillouin scattering (SBS) results from experiments and modeling for four different photonic crystal fibers (PCFs) with core diameters ranging from 8 to 1.7 m. These results reveal several SBS characteristic features of small-core PCFs, high thresholds, and acoustic peaks, which are due to their antiguiding nature and highly multimode acoustic character. The natu...

It has been shown recently that stimulated Raman radiation can be built up in the off-axis direction using a resonator the axis of which is rotated from the axis of the ruby laser resonator.'S3 The stimulated Brillouin scattering which has been found by Chiao, Townes, and Stoicheff4 shows a characteristic which is different from that of the stimulated Raman scatterings: the stimulated Brillouin...