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On-chip Stimulated Brillouin scattering (SBS) is at the focus of current research because of its potential for integration of a variety of important photonic functionalities. In general, however, short length scales remain a challenge for on-chip nonlinear optics. Here, we demonstrate a concept for selectively enhancing and inhibiting nonlinear interactions on a chip by exploiting the frequency dependence...
An overview is presented of recent progress in dynamic and distributed Brillouin-based fiber-optic sensing, culminating in sampling speeds, limited only by the fiber length.
We compare observations of Stimulated Brillouin scattering produced during ionospheric modification experiments using ground-based high-power high frequency HF radio waves at both the High Frequency Active Auroral Research Program (HAARP) and the European Incoherent scatter (EISCAT).
We propose and demonstrate Artificial Neural Network (ANN) based temperature profile extraction from local Brillouin gain spectrum in BOTDA fiber sensor system. Results show that ANN can adopt large frequency scanning step and hence reduce BOTDA measurement time significantly.
With both coupling among all optical modes and effect of optical and acoustic mode field profiles on the Brillouin gain spectrums considered, we propose transcendental equations for Brillouin thresholds of continuous-wave signal in multimode fibers.
Novel fabrication process of SiNx/SiO2 waveguide based on sidewall oxidation of patterned silicon substrate is proposed. The fabrication time of the lower SiO2 cladding is about one third of that of the conventional process.
A novel taper fabrication technique for plastic optical fibers is demonstrated. Instead of conventional external heating, internal heating caused by high-power propagating light is utilized. The plastic fiber taper fabricated using this technique is experimentally shown to have measurability of the refractive index of liquids.
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