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.

ORCID iDs

Pusino, Vincenzo, Strain, Michael J. ORCID logoORCID: https://orcid.org/0000-0002-9752-3144 and Sorel, Marc;
  • 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:11 Nov 2024 11:11
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/54324
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