ABSTRACT
This chapter provides an overview of long wavelength metamorphic
quantum well lasers. The idea of metamorphic growth is to
compromise large lattice mismatch by utilizing a relaxed buffer
layer. Structural design and growth optimization of metamorphic
buffer layers are reviewed with emphasis on composition grading
scheme and doping effects. Progress on long wavelength (>1.2 μm)
metamorphic quantum well lasers is summarized.
