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

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 i...

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Bibliographic Details
Published inApplied physics letters Vol. 105; no. 18
Main Authors Alharthi, S. S., Hurtado, A., Al Seyab, R. K., Korpijarvi, V.-M., Guina, M., Henning, I. D., Adams, M. J.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 03.11.2014
Subjects
Applied physics
Circular polarization
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Dilution
INFRARED RADIATION
LASERS
Mathematical models
Nitrides
OPTICAL PUMPING
Optical wireless
POLARIZATION
Polarization (spin alignment)
SPIN
Stability
SURFACES
Vertical cavity surface emission lasers
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Summary: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.
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content type line 14
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4901192