Thermal analysis of ridge waveguide InAsP/InGaAsP MQW lasers by using finite-element method

The thermal characteristics of 1 .3 µ m ridge waveguide InAsP/InGaAsP MQW lasers, including their temperature distribution and thermal resistance, have been simulated by using finite-element methods. The process of three-dimensional model of laser simulation is presented in this paper. The results show that FEM is a useful tool to simulate the thermal conditions of the lasers, which are critical to the design of the laser structure as well as package.