• Impact of optical gain broadening on characteristics of response function in the presence and absence of tunnelling injection for quantum dot semiconductor lasers

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Quantum dot; tunnelling injection; inhomogeneous; homogeneous; modulation

    • Abstract


      In this paper, the dynamics of QD semiconductor lasers is investigated numerically. Large and small signal modulations for various inhomogeneous broadenings have been studied. Computationally, we have solved the rate equation for two-state InAs QD semiconductor lasers and the effect of inhomogeneous broadening on response function and output power due to variation of QD parameters have been investigated in the presence and absence of tunnelling. Also, we have studied these effects on optical gain and output power. We have shown that tunnelling injection enhances the efficiency of the semiconductor laser.

    • Author Affiliations



      1. Department of Physics, Faculty of Science, University of Guilan, Rasht, Iran
    • Dates

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.