ABSTRACT
The basic structure and the principle of operation of semiconductor lasers have been introduced in Chapter 1. However, the discussions presented there are rudimentary and do not give the readers a complete and quantitative understanding of the physical processes involved, the design rules, and so on. For example, the band structure of semiconductors, the electronic transport and optical processes in semiconductors, the band structure and band alignment of heterojunctions, expressions for the optical gain and absorption, and many other properties of bulk semiconductors, their alloys, and heterojunctions need a detailed discussion. In addition, detailed knowledge is needed of the passive components used, for example, the resonators, distributed feedback structures, distributed Bragg reectors, optical waveguides, and so on. In the present and following chapters, we will endeavor to discuss these.
