Numerical analysis of void-induced thermal effects on GaAs/AlGaAs high power quantum well laser diodes

  • F. Gity
  • , V. Ahmadi
  • , M. Noshiravani
  • , K. Abedi

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

Microscopic voids in the die attachment solder layers of high power laser diodes (HPLDs) cause to degrade their overall thermal transfer performance. This paper presents the effects of voids on the thermal conductivity, leakage and threshold currents, characteristic temperature (T0) and output power of a single quantum well (SQW) HPLD. These effects are modeled by means of finite difference method (FDM). This numerical model calculates the time-dependent axial variations of photon density, carrier density and temperature in semiconductor laser self-consistently. The temperature dependence of the wavelength shift and the thermal mode hopping concept is also demonstrated.

Original languageEnglish
Title of host publication2006 IEEE GCC Conference, GCC 2006
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event2006 IEEE GCC Conference, GCC 2006 - Manama, Bahrain
Duration: 20 Mar 200622 Mar 2006

Publication series

Name2006 IEEE GCC Conference, GCC 2006

Conference

Conference2006 IEEE GCC Conference, GCC 2006
Country/TerritoryBahrain
CityManama
Period20/03/0622/03/06

Keywords

  • Finite difference method
  • High power laser diode
  • Hot spot
  • Mode hopping
  • Thermal behavior
  • Thermal rollover
  • Void
  • Wavelength shift

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