Optical nonlinearities in semiconductor optical amplifier and electro-absorption modulator: their applications to all-optical regeneration

Abstract

Optoelectronic devices handling high bit-rate signals of picosecond or subpicosecond pulse repetitions are necessary for the OTDM or OTDM/WDM-mixed systems. The bit-rate is 1st or 2nd order higher than the operation speed of conventional devices. To meet the higher speed requirement, we have to develop ultrafast optoelectronic device technologies in new device principles and materials.