• DocumentCode
    1501647
  • Title

    Gain Dynamics in Quantum-Dot Semiconductor Optical Amplifiers at 1550 nm

  • Author

    Contestabile, G. ; Maruta, A. ; Kitayama, K.

  • Author_Institution
    Scuola Superiore Sant´´Anna, Pisa, Italy
  • Volume
    22
  • Issue
    13
  • fYear
    2010
  • fDate
    7/1/2010 12:00:00 AM
  • Firstpage
    987
  • Lastpage
    989
  • Abstract
    We report an experimental study of the gain recovery of an InAs-InGaAsP-InP columnar-quantum-dot semiconductor optical amplifier around 1550 nm. We find a three-step recovery process that gives around 85% gain recovery in only 10 ps and 100% in around 30 ps in case of a quite complete gain saturation. We also give a possible physical explanation for the peculiar gain dynamics.
  • Keywords
    III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; quantum dot lasers; recovery; semiconductor optical amplifiers; InAs-InGaAsP-InP; columnar-quantum-dot semiconductor optical amplifiers; gain dynamics; gain recovery; gain saturation; three-step recovery process; wavelength 1550 nm; Gain dynamics; quantum dot (QD); semiconductor optical amplifier (SOA);
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/LPT.2010.2047852
  • Filename
    5471180