Quantum transmission line modelling method and its application to quantum dot amplifiers

Mingjun Xia, Hooshang Ghafouri-Shiraz

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In this paper, a new transmission line modelling method is introduced to establish photon emission model in the Maxwell-Schrodinger framework, which is referred to as quantum transmission line modelling method (Q-TLM). Based on Q-TLM, a new model for quantum dot structure is established and it was found that Q-TLM can accurately describe the gain and spontaneous emission spectra of quantum dot structures. Furthermore, the Q-TLM method is used to analyze the femtosecond pulse amplification in the quantum dot amplifier in the time-frequency domain. The new modelling technique which combines the quantum statistic and photon-electron interaction process descriptions provides an attractive tool to predict the temporal and spectral performance of semiconductor optical devices.
Original languageEnglish
Article number5100107
JournalIEEE Journal of Quantum Electronics
Issue number5
Early online date7 Mar 2016
Publication statusPublished - 1 May 2016


  • Transmission line modelling method
  • amplifiers
  • model for semiconductor optical devices
  • photon emission model
  • quantum dot structures


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