Abstract
In this letter, we propose and experimentally demonstrate an efficient and scalable photonic superstructure employed for ultrawideband (UWB) pulses modulation purposes. This design is based on the combination of a phase modulation to intensity modulation stage with a customized pulse shaper. Pulse shaping is achieved by means of a photonic structure composed by concatenated fiber Bragg gratings. The proposed scheme holds the capacity of generating high-order UWB signals, a feature that enables the implementation of widely employed modulation formats such as: pulse position modulation, pulse shape modulation, and bi-phase modulation. Theoretical and experimental measurements are exposed to sustain the validity of this system.
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