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Circular polarization switching and bistability in an optically injected 1300 nm spin-vertical cavity surface emitting laser

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Details

Original languageEnglish
Article number021117
JournalApplied Physics Letters
Volume106
Issue number2
DOIs
Publication statusPublished - 12 Jan 2015
Publication typeA1 Journal article-refereed

Abstract

We report the experimental observation of circular polarization switching (PS) and polarization bistability (PB) in a 1300 nm dilute nitride spin-vertical cavity surface emitting laser (VCSEL). We demonstrate that the circularly polarized optical signal at 1300 nm can gradually or abruptly switch the polarization ellipticity of the spin-VCSEL from right-to-left circular polarization and vice versa. Moreover, different forms of PS and PB between right- and left-circular polarizations are observed by controlling the injection strength and the initial wavelength detuning. These results obtained at the telecom wavelength of 1300 nm open the door for novel uses of spin-VCSELs in polarization sensitive applications in future optical systems.

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Field of science, Statistics Finland