Comprehensive modeling of diffused quantum-well vertical-cavity surface-emitting lasers

W. M. Man, Siu Fung Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

22 Citations (Scopus)


A numerical model for investigating the thermal, electrical, and optical characteristics of vertical-cavity surface-emitting lasers (VCSEL's) with a diffused quantum-well (QW) structure is presented. In the model, the quasi-three-dimensional (quasi-3-D) distribution of temperature, voltage and optical fields as well as the quasi-two-dimensional (quasi-2-D) diffusion and recombination of carrier concentration inside the QW active layer are calculated in a self-consistent manner. In addition, the quasi-3-D distribution of implanted ions before and after thermal annealing are computed. The variation of electrical conductivity and absorption loss as well as the influence of impurity induced compositional disordering on the optical gain and refractive index of the QW active layer are also taken into consideration. Using this model, the steady-state characteristics of diffused QW VCSEL's are studied theoretically. It is shown that significant improvement of stable single-mode operation can be obtained using diffused QW structure.
Original languageEnglish
Pages (from-to)715-722
Number of pages8
JournalIEEE Journal on Selected Topics in Quantum Electronics
Issue number4
Publication statusPublished - 1 Jul 1998
Externally publishedYes


  • Interdiffusion
  • Laser modeling
  • Quantum-well semiconductor lasers
  • Vertical-cavity surface-emitting lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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