Filamentation and Fundamental-Mode Operation in InGaN Quantum Well Lasers

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Description

Filamentation, and consequently output beam quality in InGaN quantum-well lasers are found to be strong functions of quantum-well width because of the interplay of quantum-confined Stark effect and many-body interactions. For an In{sub 0.2}Ga{sub 0.8}N/GaN gain medium the antiguiding factor in a thick 4nm quantum well is considerably smaller than that for a narrow 2nm one. As a result, lasers with the thicker quantum well maintain fundamental-mode operation with wider stripe widths and at significantly higher excitation levels.

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14 p.

Creation Information

CHOW,WENG W.; AMANO,H. & AKASAKI,I. December 8, 1999.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Filamentation, and consequently output beam quality in InGaN quantum-well lasers are found to be strong functions of quantum-well width because of the interplay of quantum-confined Stark effect and many-body interactions. For an In{sub 0.2}Ga{sub 0.8}N/GaN gain medium the antiguiding factor in a thick 4nm quantum well is considerably smaller than that for a narrow 2nm one. As a result, lasers with the thicker quantum well maintain fundamental-mode operation with wider stripe widths and at significantly higher excitation levels.

Physical Description

14 p.

Notes

OSTI as DE00015164

Medium: P; Size: 14 pages

Source

  • Journal Name: Applied Physics Letters; Other Information: Submitted to Applied Physics Letters

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  • Report No.: SAND99-3109J
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 15164
  • Archival Resource Key: ark:/67531/metadc625161

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  • December 8, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 2:08 p.m.

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CHOW,WENG W.; AMANO,H. & AKASAKI,I. Filamentation and Fundamental-Mode Operation in InGaN Quantum Well Lasers, article, December 8, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc625161/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.