Laser Doppler velocimetry with polarization-bistable VCSELs

被引：13
作者：
Albert, J
Soriano, MC
Veretennicoff, I
Panajotov, K
Danckaert, J
Porta, PA
Curtin, DP
McInerney, JG
机构：
[1] Free Univ Brussels, Dept Appl Phys & Photon, B-1050 Brussels, Belgium
[2] Inst Solid State Phys, BU-1784 Sofia, Bulgaria
[3] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales
[4] Natl Univ Ireland Univ Coll Cork, Dept Phys, Cork, Ireland
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2004年 / 10卷 / 05期
关键词：
bistability; laser Doppler velocimetry; polarization switching (PS); vertical-cavity surface-emitting laser (VCSEL);
D O I：
10.1109/JSTQE.2004.836011
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：1006 / 1012
页数：7
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