Abstract

Planar proton-implanted top-surface-emitting lasers (PITSELs) are of great interest because of their compatibility with other optoelectronic and electrical components and their potential for two-dimensional integration. Their p-side-up mounting, however, aggravates thermal problems to the point that heating can significantly affect laser characteristics. In particular, optical field distribution can be modified because of formation of thermal waveguides or antiguides. We have developed a comprehensive self-consistent thermal-electrical model¹ that gives a numerical solution to the problem of heat generation and dissipation in PITSELs. Using the results of that analysis, we have generated three-dimensional isotherm maps that illustrate temperature profiles in the entire volume of the device. This provides valuable information about mechanisms of heat dissipation and about thermal waveguide profiles in PITSELs.

© 1992 Optical Society of America