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This page contains notes concerning the thermal modeling of a Vertical Cavity Surface Emitting Laser (VCSEL). This project was carried out in Summer 2001 as a joint venture between the Minnesota Center for Industrial Mathematics (MCIM) and Honeywell. The computational aspects were performed by a graphical Finite Element Method solver called FEMLAB. Introduction to FEMLAB: A Simple Thermo-Electric Example Steady-State Thermal Model of a 14 mil VCSEL Die Thermo-Electric Model of a 14 mil VCSEL Die Factors Affecting Heat Flow Anisotropic Thermal Conductivity Die Size Position of VCSEL Ambient Temperature Dimensions of Gold Pad Todd Wittman, University of Minnesota, Summer 2001 Academic Supervisor: Fadil Santosa, University of Minnesota Industrial Supervisor: Allen Cox, Honeywell