ABSTRACT
Optical waveguiding based on the confinement of an optical wave in a semiconductor heterostructure, as well as optical amplification based on stimulated emission, is an essential element for semiconductor lasers. This chapter presents optical waveguides consisting of semiconductor heterostructures for lasers. Analysis of passive optical characteristics [1-4] and optical characteristics under carrier injection are discussed. Analysis and characteristics of optical resonator for laser using such a waveguide are also presented.
