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A photonic RF phase shifter is proposed and demonstrated based on a vector-sum technique using stimulated Brillouin scattering (SBS) in dispersion shifted fiber (DSF). Two optical sidebands are generated and introduced to the Brillouin processing module when an RF signal is modulated on a continuous-wave carrier by an electrooptic phase modulator. SBS amplification/depletion, as well as nonlinear...
A compact single-ended setup for stimulated Brillouin scattering (SBS) spectra characterization is proposed based on microwave modulated optical sidebands and Fresnel reflection in optical fibers. The measured spectra agree well with the theoretical Lorentzian profile.
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