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

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

doi:10.1063/1.104676

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 journal › Article › peer-review

18 Scopus citations

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 language	English
Pages (from-to)	328-330
Number of pages	3
Journal	Applied Physics Letters
Volume	58
Issue number	4
DOIs	https://doi.org/10.1063/1.104676
State	Published - Dec 1 1991
Externally published	Yes

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title = "Many-body effects on the linewidth enhancement factor in quantum well lasers",

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.",

author = "Chow, \{Weng W.\} and Koch, \{Stephan W.\} and Murray Sargent and Claudia Ell",

year = "1991",

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doi = "10.1063/1.104676",

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journal = "Applied Physics Letters",

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T1 - Many-body effects on the linewidth enhancement factor in quantum well lasers

AU - Chow, Weng W.

AU - Koch, Stephan W.

AU - Sargent, Murray

AU - Ell, Claudia

PY - 1991/12/1

Y1 - 1991/12/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0005279546

U2 - 10.1063/1.104676

DO - 10.1063/1.104676

M3 - Article

SN - 0003-6951

VL - 58

SP - 328

EP - 330

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

ER -

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

Abstract

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