Abstract

We experimentally investigate the polarization-resolved nonlinear dynamics of a long-wavelength single-transverse-mode vertical-cavity surface-emitting laser (VCSEL) subjected to orthogonal optical injection. We focus on the case in which the wavelength of the optical injection is close to the wavelength of a free-running VCSEL characterized by large values of the birefringence parameter. We observe an elliptically polarized, injection-locked (EPIL) state. The EPIL region is measured in the frequency detuning-injected power plane. Above the upper boundary of the EPIL region, the nonlinear dynamics of the system is usually characterized by periodic oscillations of the power of linear polarizations at a frequency close to the relaxation oscillation frequency of the VCSEL or one half of this value. Below the lower boundary of the EPIL region, the VCSEL operates in parallel polarization and demonstrates periodic pulsations at a frequency given by the frequency detuning or one half of this value. Our results confirm the theoretical predictions of Sciamanna and Panajotov [Phys. Rev. A 73, 023811 (2006)].

© 2014 Optical Society of America

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