Quantum dot spin-V(E)CSELs: Polarization switching and periodic oscillations

Nianqiang Li, Dimitris Alexandropoulos, Hadi Susanto, Ian Henning, Michael Adams

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Spin-polarized vertical (external) cavity surface-emitting lasers [Spin-V(E)CSELs] using quantum dot (QD) material for the active region, can display polarization switching between the right- and left-circularly polarized fields via control of the pump polarization. In particular, our previous experimental results have shown that the output polarization ellipticity of the spin-V(E)CSEL emission can exhibit either the same handedness as that of the pump polarization or the opposite, depending on the experimental operating conditions. In this contribution, we use a modified version of the spin-flip model in conjunction with combined time-independent stability analysis and direct time integration. With two representative sets of parameters our simulation results show good agreement with experimental observations. In addition periodic oscillations provide further insight into the dynamic properties of spin-V(E)CSELs.

Original languageBritish English
Title of host publicationSpintronics X
EditorsHenri Jaffres, Manijeh Razeghi, Henri-Jean Drouhin, Jean-Eric Wegrowe
PublisherSPIE
ISBN (Electronic)9781510611719
DOIs
StatePublished - 2017
EventSpintronics X Symposium - San Diego, United States
Duration: 6 Aug 201710 Aug 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10357
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSpintronics X Symposium
Country/TerritoryUnited States
CitySan Diego
Period6/08/1710/08/17

Keywords

  • periodic oscillations
  • polarization switching
  • Spin-V(E)CSELs

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