Theoretical and experimental study of polarization switching in longwavelength VCSELs subject to parallel optical injection
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AuthorQuirce, A.; Pérez García, Pablo; Popp, Alexandra Paola; Valle Gutiérrez, Ángel; Pesquera Gonzalez, Luis; Hong, Y.; Thienpont, H.; Panajotov, K.
Copyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Proceedings of SPIE, 2016, 9892
SPIE Society of Photo-Optical Instrumentation Engineers
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We report a theoretical and experimental analysis of the polarization switching found in a single-transverse mode VCSEL when subject to parallel optical injection. We have found a novel situation in which injection locking of the parallel polarization and excitation of the free-running orthogonal polarization of the VCSEL are simultaneously obtained. Analytical expressions for the power of both linear polarizations in the previous steady state are determined. We show that considering two linear polarization modes in a model of a VCSEL subject to parallel optical injection leads to simpler expressions than those found for a VCSEL with only a single linear polarization. We show that the power emitted in both linear polarizations depend linearly on the injected power. The stability region of this solution is measured in the plane injected power versus frequency detuning.