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Proceedings Paper

Critical slowing down in polarization switching of vertical-cavity surface-emitting lasers
Author(s): Yu-Heng Wu; Yueh-Chen Li; Wang-Chuang Kuo; Tsu-Chiang Yen
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Paper Abstract

This research investigated the critical slowing down in polarization switching (PS) of vertical-cavity surface-emitting lasers (VCSELs). The experiments were performed by step-function current injection in two types: step-up and stepdown. In the case of step-up and step-down, the relationship between relaxation time and final current in this experiment resembles critical slowing down (CSD). The critical currents of two step-function current experiment are compared. The PS in this experiment is a static case. We also find that the divergence of relaxation time follow a power law. These results contribute to the understanding of the mechanism of CSD in VCSEL's PS (VPS).

Paper Details

Date Published: 2 May 2014
PDF: 6 pages
Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 91341O (2 May 2014); doi: 10.1117/12.2051457
Show Author Affiliations
Yu-Heng Wu, National Sun Yat-Sen Univ. (Taiwan)
Yueh-Chen Li, National Sun Yat-Sen Univ. (Taiwan)
Wang-Chuang Kuo, National Sun Yat-Sen Univ. (Taiwan)
Tsu-Chiang Yen, National Sun Yat-Sen Univ. (Taiwan)


Published in SPIE Proceedings Vol. 9134:
Semiconductor Lasers and Laser Dynamics VI
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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