SINGLE-MODE LASER DIODE USING STRAIN COMPENSATED MULTIPLE QUANTUM WELL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a single-mode laser diode using a strain compensated multiple quantum well, and to provide its manufacturing method.;SOLUTION: A single-mode laser diode is provided with a substrate; an n-type coating layer that is formed on the substrate to prevent loss of generated light; an n-type SCH layer that is formed on the n-type coating layer to confine the generated light; a multiple quantum well that is formed on the n-type SCH layer to generate light; a p-type SCH layer that is formed on the multiple quantum well to confine the generated light; a p-type coating layer that is formed on the p-type SCH layer to prevent loss of the generated light; an ohmic layer that is formed on the p-type coating layer to control ohmic contacts; and an electrode for injecting the electric current generating light to the multiple quantum well. In the single-mode laser diode and its manufacturing method, multiple quantum well is provided with strains compensated by a plurality of compressive strain well layers and a plurality of tensile strain barrier layers that are formed alternately by preset stacking periods.;COPYRIGHT: (C)2005,JPO&NCIPI