KEYWORDS: Dispersion, Modulation, Analog electronics, Digital photography, Electrooptic modulators, Electro optics, Modulators, Decision support systems, Single mode fibers, Optical amplifiers
A novel digital-to-analog converter based on multi-wavelength pulse source is proposed and primarily demonstrated by
experiment. The multi-wavelength pulse train which has been pretreated is separated in time domain through dispersion.
The pulse of different wavelength corresponds to the input digital data. Only one electro-optical modulator is needed in
the scheme. In the primary experiment, a 3-bit photonic digital-to-analog converter with a sample rate of 2.5 Gb/s is
realized. The scheme is simple and compact compared with the scheme using multiple electro-optical modulators.
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