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Facet degradation of aged strained quantum-well lasers studied by high-voltage electron-beam-induced current

  • M. C. Wang*
  • , D. M. Hwang
  • , P. S.D. Lin
  • , L. Dechiaro
  • , C. E. Zah
  • , S. Ovadia
  • , T. P. Lee
  • , D. Darby
  • *Corresponding author for this work
  • Telcordia Technologies
  • Lasertron

Research output: Contribution to journalJournal Article peer-review

11 Scopus citations

Abstract

High-voltage electron-beam-induced-current imaging is used to study the aging of two sets of commercial 0.98 μm lasers with identical strained quantum wells (In0.2Ga0.8As) but different cladding layers (Al0.55Ga0.45As versus In0.49Ga 0.51P) on GaAs substrates. We observed the development of facet defects only in the InGaAs/AlGaAs lasers which also exhibited larger threshold-current increases. It therefore suggests that this facet degradation mode is related to the cladding layer composition, not to the strains in the active layer.

Original languageEnglish
Pages (from-to)3145-3147
Number of pages3
JournalApplied Physics Letters
Volume64
Issue number23
DOIs
StatePublished - 1994
Externally publishedYes

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