Self-Consistent Model and Numerical Analysis of VCSEL's Laser Diodes |
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Authors: | Hongbin Zhang Gerd Mrozynski Amir Wallrabenstein Juergen Schrage Elmar Griese |
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Affiliation: | 1. Electrical Engineering & Information Technology, Paderborn University, D-33098, Germany 2. Siemens SBS C-LAB, Fuerstenallee 11, Germany, 33102 3. Institute of Theoretical Electrotechnics & Photonics, Siegen University, D-57068, Germany
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Abstract: | A self-consistent model of vertical-cavity surface-emitting lasers (VCSEL's) is presented in this paper, in which the carrier diffusion rate equation, the photon density rate equation, and the thermal conduction equation are considered simultaneously. The nonuniform heat flux density distribution in the active region due to the current-spreading effect is taken into account. The effects of temperature on gain and transparency carrier density are also included in this model. It is nonlinearly and self-consistently solved in the Matlab environment. The transient and lateral distribution characteristics of the carrier and photon densities and the junction temperature are investigated. Some interesting results are gotten and analyzed. |
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