Passive mode-locking in semiconductor lasers with saturable absorbers bandgap shifted through quantum well intermixing

Pusino, Vincenzo and Strain, Michael J. and Sorel, Marc (2014) Passive mode-locking in semiconductor lasers with saturable absorbers bandgap shifted through quantum well intermixing. Photonics Research, 2 (6). pp. 186-189. ISSN 2327-9125 (https://doi.org/10.1364/PRJ.2.000186)

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Abstract

Passive mode-locking in semiconductor lasers in a Fabry-Perot configuration with a bandgap blueshift applied to the saturable absorber (SA) section has been experimentally characterized. For the first time a fully post-growth technique, quantum well intermixing, was adopted to modify the material bandgap in the SA section. The measurements showed not only an expected narrowing of the pulse width but also a significant expansion of the range of bias conditions generating a stable train of optical pulses. Moreover, the pulses from lasers with bandgap shifted absorbers presented reduced chirp and increased peak power with respect to the nonshifted case.

  • Item type:Article
    ID code:54324
    Dates:
    Date
    Event
    1 December 2014
    Published
    23 October 2014
    Accepted
    Notes:© 2014 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
    Subjects:Science > Physics
    Department:University of Strathclyde > University of Strathclyde
    Depositing user: Pure Administrator
    Date deposited:21 Sep 2015 13:28
    Last modified:09 May 2024 00:43
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/54324
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