Clamping of the Linewidth Enhancement Factor in Narrow Quantum-Well GRINSCH Semiconductor Lasers

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The linewidth enhancement factor in single quantum-well GRINSCH semiconductor lasers is investigated theoretically and experimentally. For thin wells a small linewidth enhancement factor is obtained which clamps with increasing carrier density, in contrast to the monotonous increase observed for thicker wells. Microscopic many-body calculations reproduce the experimental observations attributing the clamping to a subtle interplay between excitation dependent gain shifts and carrier population distributions.

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Bossert, D.; Chow, W.W.; Hader, J.; Koch, S.W.; Moloney, J.V. & Stohls, J. January 20, 1999.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Laboratories, Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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The linewidth enhancement factor in single quantum-well GRINSCH semiconductor lasers is investigated theoretically and experimentally. For thin wells a small linewidth enhancement factor is obtained which clamps with increasing carrier density, in contrast to the monotonous increase observed for thicker wells. Microscopic many-body calculations reproduce the experimental observations attributing the clamping to a subtle interplay between excitation dependent gain shifts and carrier population distributions.

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  • Journal Name: Applied Physics Letters

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  • Other: DE00003215
  • Report No.: SAND99-0124J
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 3215
  • Archival Resource Key: ark:/67531/metadc686228

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  • January 20, 1999

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 22, 2016, 10:28 p.m.

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Bossert, D.; Chow, W.W.; Hader, J.; Koch, S.W.; Moloney, J.V. & Stohls, J. Clamping of the Linewidth Enhancement Factor in Narrow Quantum-Well GRINSCH Semiconductor Lasers, article, January 20, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc686228/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.