Self-assembled III-V quantum dots attract intense research interest and
effort due to their unique physical properties arising from the
three-dimensional confinement of carriers and discrete density of
states. Semiconductor III-V quantum-dot laser structures exhibit
dramatically improved device performance in comparison with their
quantum well counterparts, notably their ultra low threshold current
density, less sensitivity to defects and outstanding thermal stability.
Therefore, integrating a high-quality quantum-dot laser structure onto
silicon-based platform could potentially constitute a hybrid technology
for the realization of optical inter-chip communications. This book is
devoted to the development of high-performance InAs/GaAs quantum-dot
lasers directly grown on silicon substrates and germanium substrates for
silicon photonics.