Structural simulation and design of semiconductor laser optical amplifiers

The purpose of this work is to study, through a careful analysis of the optical waveguide characteristics and an accurate design of the antireflection coatings (ARC), the possibility of realizing polarization-independent semiconductor optical amplifiers. The structural design of BH (buried heterostructure) and ridge waveguide (RW) devices is considered, varying the active and cladding layer thickness and the stripe width. For these structures, a new simple and accurate design procedure of the ARC, that takes also into account the waveguide transverse limitation, is proposed