Optical and Quantum Electronics

, Volume 47, Issue 10, pp 3273–3287 | Cite as

Analysis of the effects of temperature and the electric field on quantum cascade laser characteristics

  • Sumit Saha
  • Jitendra Kumar


The effects of temperature and the electric field on the characteristics of a quantum cascade laser (QCL) have been investigated theoretically. A complete three level rate equation model considering all the scattering events has been proposed. The analytical expression for the threshold current density has been derived and the effects of temperature and the electric field are examined. The rate equation model is further used to analyze the population and photon number dynamics present within the cavity of a QCL and the effects of temperature and the electric field on the laser dynamics are investigated numerically.


Quantum cascade lasers (QCLs) Rate equations Electric field Temperature Turn-on delay time Rise time Backscattering Anticrossing Oscillator strength 



Financial support from UGC–SAP, India under the DRS Programme is gratefully acknowledged.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Department of Electronics EngineeringIndian School of MinesDhanbadIndia

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