Many-body effects on the linewidth enhancement factor in quantum well lasers

Weng W. Chow, Stephan W Koch, Murray Sargent, Claudia Ell

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A many-body theory that includes band-gap renormalization, plasma screening, and interband Coulomb effects is used to calculate the linewidth enhancement factor α in quantum well lasers. We find significant variations in α with carrier density, suggesting that improvements in the laser linewidth and reduction in filamentation effects are possible for some laser configurations.

Original languageEnglish (US)
Pages (from-to)328-330
Number of pages3
JournalApplied Physics Letters
Volume58
Issue number4
DOIs
StatePublished - 1991

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quantum well lasers
augmentation
lasers
screening
configurations

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Many-body effects on the linewidth enhancement factor in quantum well lasers. / Chow, Weng W.; Koch, Stephan W; Sargent, Murray; Ell, Claudia.

In: Applied Physics Letters, Vol. 58, No. 4, 1991, p. 328-330.

Research output: Contribution to journalArticle

Chow, Weng W. ; Koch, Stephan W ; Sargent, Murray ; Ell, Claudia. / Many-body effects on the linewidth enhancement factor in quantum well lasers. In: Applied Physics Letters. 1991 ; Vol. 58, No. 4. pp. 328-330.
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