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A frequency-sweep-free method for stimulated Brillouin scattering (SBS)-based sensing is proposed, having the potential for fast acquisition characteristics. The Brillouin gain spectrum and the Brillouin frequency shift are determined using multiple frequency tones for both the probe and pump. While in this paper, continuous wave probe and pump waves are used to prove the feasibility of the concept,...
We propose and experimentally demonstrate UWB monocycle generation using non-degenerated two-photon absorption in a silicon waveguide. A 8.69-GHz 10-dB bandwidth (BW) and a 154.5% fractional bandwidth is achieved with a ∼125 ps monocycle pulse.
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