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 rightcircular 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.
Original language | English |
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Article number | 181106 |
Number of pages | 6 |
Journal | Applied Physics Letters |
Volume | 105 |
Issue number | 18 |
DOIs | |
Publication status | Published - 5 Nov 2014 |
Keywords
- polarization
- vertical cavity surface emitting laser
- optical pumping