Abstract
A generation approach of photonic logic minterms and maxterms, which is fully reconfigured minterms and maxterms for four-input 40-Gb/s differential phase-shift keying (DPSK) signals, has been demonstrated based on delay interferometers and semiconductor optical amplifiers. The maxterms are directly derived by inverting the corresponding minterms, according to their complementary characteristics. Reconfigurations of the scheme, enabled by tuning either the phase shift of delay interferometer or input wavelength, are shown among 16 minterms, as well as corresponding maxterms. A full set of minterms and maxterms are captured with clear open eye diagrams and extinction ratios of over 10 and 8 dB, respectively, which indicate the potential of further realizing arbitrary complex logic operations.
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