High-performance quantum well amplifiers for the WDM system

Hooshang Ghafouri-Shiraz, Mingjun Xia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper presents a new high-performance quantum well amplifier with longitudinal non-uniform distributed compressive strain for the WDM system. Quantum well transmission line modelling (QW-TLM) method is adopted to analyze the scattering spectra of electron transitions and it was found that the decreased carrier density can induce the blue shift and lower magnitude of electron scattering spectrum at a certain wave vector while increasing the compressive strain can lead to the red shift and enhanced magnitude of electron scattering spectrum at the same wave vector. Based on the theoretical analysis, the longitudinal linearly compressively strained quantum well amplifiers are proposed. Simulation results show that the method of distributing linear compressive strain along the quantum well amplifier cavity can effectively increase the amplifier spectral bandwidth and improve the output performance of QW-SOAs in the WDM system.
Original languageEnglish
Title of host publication2015 36th IEEE Sarnoff Symposium Proceedings
PublisherIEEE Xplore
Number of pages4
ISBN (Electronic)978-1467380423
ISBN (Print)978-1479978908
Publication statusPublished - 12 Nov 2015
EventThe 36th IEEE Sarnoff Symposium 2015 - New Jersey, Newark, United States
Duration: 20 Sept 201522 Sept 2015


ConferenceThe 36th IEEE Sarnoff Symposium 2015
Country/TerritoryUnited States


  • quantum well amplifier
  • non-uniform distributed compressive strain
  • WDM system


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