TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

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

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Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli021117
JulkaisuApplied Physics Letters
Vuosikerta106
Numero2
DOI - pysyväislinkit
TilaJulkaistu - 12 tammikuuta 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

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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