Laser Doppler velocimetry with polarization-bistable VCSELs

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 enha...

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Bibliographic Details
Published inIEEE journal of selected topics in quantum electronics Vol. 10; no. 5; pp. 1006 - 1012
Main Authors Albert, J., Soriano, M.C., Veretennicoff, I., Panajotov, K., Danckaert, J., Porta, P.A., Curtin, D.P., McInerney, J.G.
Format Journal Article
LanguageEnglish
Published IEEE 01.09.2004
Subjects
Bistability
Equations
Laser applications
laser Doppler velocimetry
Laser feedback
Laser modes
Laser velocimetry
Optical feedback
Optical polarization
polarization switching (PS)
Semiconductor lasers
Surface emitting lasers
Vertical cavity surface emitting lasers
vertical-cavity surface-emitting laser (VCSEL)
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ISSN1077-260X
DOI10.1109/JSTQE.2004.836011

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Summary: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.
ISSN:1077-260X
DOI:10.1109/JSTQE.2004.836011