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Open Access item Combined effects of semiconductor gain dynamics, spin dynamics and thermal shift in polarization selection in VCSELs

Authors:San Miguel, Maxi
Balle, Salvador
Mulet, Josep
Mirasso, Claudio R.
Tolkachova, E.
Tredicce, Jorge R.
Issue Date:14-Jul-2000
Publisher:Society of Photo-Optical Instrumentation Engineers
Citation:Physics and Simulation of Optoelectronic Devices VIII: 3944, 242-251 (2000)
Series/Report no.:SPIE Proceedings
3944
Abstract:We discuss mechanisms of polarization switching (PS) in Vertical Cavity Surface Emitting Lasers (VCSELs) within a mesoscopic approach based on an explicit form of a frequency- dependent complex susceptibility of the QW semi-conductor material. Cavity anisotropies, spin carrier dynamics and thermal shift of the gain curve are also taken into account in this framework. For large birefringence we find a PS due to thermal shift. For small birefringence we find a different PS, from the high-gain to the low-gain polarization state, that occurs at constant temperature. We characterize polarization partition noise in terms of power spectra. Transverse effects for PS in gain guided VCSELs are also considered.
Publisher version (URL):http://dx.doi.org/10.1117/12.391426
URI:http://hdl.handle.net/10261/56178
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Appears in Collections:(IMEDEA) Libros y partes de libros

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