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Laser doppler velocimetry with polarization-bistable VCSELs

  • Jan Albert
  • , Miguel Cornelles Soriano
  • , I. Veretennicoff
  • , Krassimir Panajotov
  • , Jan Danckaert
  • , Pierpaolo A. Porta
  • , David P. Curtin
  • , John G. McInerney

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper we present a rate equation model of a single mode vertical-cavity surface-emitting laser (VCSEL) with two states of linear polarization, subject to Doppler-shifted optical feedback. Recent experimental work has shown that the polarization bistability often observed in VCSELs can be exploited to enhance the responsivity of these semiconductor lasers in speed-sensing applications. We review these experimental results briefly and use the rate equation model to explain the increased signal-to-noise ratio.

Original languageEnglish
Pages (from-to)1006-1012
Number of pages7
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume10
Issue number5
DOIs
Publication statusPublished - Sep 2004
Externally publishedYes

Keywords

  • Bistability
  • Laser Doppler velocimetry
  • Polarization switching (PS)
  • Vertical-cavity surface-emitting laser (VCSEL)

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