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Proceedings Paper

Dynamical study and bifurcation analysis of polarization switching in vertical-cavity surface-emitting lasers
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Paper Abstract

One of the most intriguing aspects of Vertical-Cavity Surface-Emitting Lasers (VCSEL's) lies in their polarization behavior, which differs from the one of edge-emitting lasers due to the lack of a dominating polarization selection mechanism in the quasi cylindrically symmetric structure. A number of different explanations of this polarization behavior, and especially of the observed polarization switching, have been put forward. A first model is of a thermal nature and attributes the switching to the shift (caused by the current heating) of the material gain spectral profile relative to the cavity resonances for the two frequency-split polarization modes [1J. An alternative thermal explanation focuses on the effects of a thermally induced waveguide occurring in the VCSEL (the so-called thermal lensing effect) and the subsequent competition of the modal gains of the two orthogonal polarization modes coexisting in the slightly anisotropic laser resonator [2].

Paper Details

Date Published: 22 May 1998
PDF: 4 pages
Proc. SPIE 3490, Optics in Computing '98, (22 May 1998); doi: 10.1117/12.308975
Show Author Affiliations
Jan Danckaert, Vrije Univ. Brussel (Belgium)
Krassimir P. Panajotov, Vrije Univ. Brussel (Belgium)
Irina P. Veretennicoff, Vrije Univ. Brussel (Belgium)
Thomas Erneux, Univ. Libre de Bruxelles (Belgium)


Published in SPIE Proceedings Vol. 3490:
Optics in Computing '98
Pierre H. Chavel; David A. B. Miller; Hugo Thienpont, Editor(s)

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