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Giampiero Contestabile has been working from the time of his master degree thesis (1997) to now in the field of opto-electronic devices and broadband transmission in fibers, with special emphasis on the study and experimental demonstration of novel schemes and techniques for the all-optical processing of high speed signals, and on the design and exploitation of novel photonic integrated circuits (PICs).

He contributed to the study, design and characterization of novel optical devices, to the demonstration of novel all-optical subsystems for next generation networks and, at the same time, he contributed to several experimental demonstrations and field trials.

He is a leading expert in the field of photonic integrated circuits (PICs), semiconductor laser and semiconductor optical amplifiers (SOAs) and their linear and nonlinear applications.