Optically-pumped dilute nitride spin-VCSEL

Schires, Kevin and Al Seyab, Rihab and Hurtado, Antonio and Korpijärvi, Ville-Markus and Guina, Mircea and Henning, Ian D. and Adams, Michael J. (2012) Optically-pumped dilute nitride spin-VCSEL. Optics Express, 20 (4). pp. 3550-3555. ISSN 1094-4087

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Abstract

We report the first room temperature optical spin-injection of a dilute nitride 1300 nm vertical-cavity surface-emitting laser (VCSEL) under continuous-wave optical pumping. We also present a novel experimental protocol for the investigation of optical spin-injection with a fiber setup. The experimental results indicate that the VCSEL polarization can be controlled by the pump polarization, and the measured behavior is in excellent agreement with theoretical predictions using the spin flip model. The ability to control the polarization of a long-wavelength VCSEL at room temperature emitting at the wavelength of 1.3 μm opens up a new exciting research avenue for novel uses in disparate fields of technology ranging from spintronics to optical telecommunication networks.