Control of emitted light polarization in a 1310 nm dilute nitride spin-vertical cavity surface emitting laser subject to circularly polarized optical injection

Alharthi, S. S., Hurtado, A., Al-Seyab, Rihab K., Korpijarvi, V.-M., Guina, M., Henning, I. D. and Adams, M. J. (2014) Control of emitted light polarization in a 1310 nm dilute nitride spin-vertical cavity surface emitting laser subject to circularly polarized optical injection. Applied Physics Letters, 105 (18). p. 181106. ISSN 0003-6951

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Abstract

We experimentally demonstrate the control of the light polarization emitted by a 1310 nm dilute nitride spin-Vertical Cavity Surface Emitting Laser (VCSEL) at room temperature. This is achieved by means of a combination of polarized optical pumping and polarized optical injection. Without external injection, the polarization of the optical pump controls that of the spin-VCSEL. However, the addition of the externally injected signal polarized with either left- (LCP) or right-circular polarization (RCP) is able to control the polarization of the spin-VCSEL switching it at will to left- or right-circular polarization. A numerical model has been developed showing a very high degree of agreement with the experimental findings.

Item Type: Article
Article Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Schools and Research Institutes > School of Business and Technology > Engineering Technologies
Research Priority Areas: Applied Business & Technology
Depositing User: Marta Kemp
Date Deposited: 03 Sep 2019 15:23
Last Modified: 03 Sep 2019 15:23
URI: http://eprints.glos.ac.uk/id/eprint/7158

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