Spontaneous emission control in quantum well laser diodes

H. D. Summers, G. M. Berry, G. W. Lewis, P. Blood

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Spontaneous emission control has been achieved in GaAs/AlGaAs quantum well lasers by the use of Bragg reflectors to define a micro-cavity perpendicular to the quantum wells. The room temperature emission is inhibited whilst below 130K there is an enhancement. These changes to the spontaneous recombination process directly effect the threshold current producing a 25% reduction at room temperature. Theoretical modeling of the lasers is in agreement with the experimental results and highlights the effect of the micro-cavity in altering the overlap of the electro-magnetic field with the quantum well dipole oscillators.

Original languageEnglish (US)
Pages (from-to)151-156
Number of pages6
JournalOptics Express
Volume2
Issue number4
DOIs
StatePublished - Feb 1998

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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