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

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      https://www.ias.ac.in/article/fulltext/pram/089/03/0047

    • 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

       

      YASIN YEKTA KIA1 ESFANDIAR RAJAEI1

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

       
  • Pramana – Journal of Physics | News

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