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Atom-based optical polarization modulator
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DOI：10.1364/OE.514173.png)
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Abstract
En 中文
In this work, we employ 87Rb atoms as rotation media to manipulate the polarization of optical fields in both magnetic and magnetic -free environments. Employing the nonlinear magneto -optical rotation mechanism, we achieve a state-of-the-art magneto -optical rotation coefficient of 1.74 x 108 rad center dot T-1 center dot m-1 which is four orders of magnitude higher than commonly employed materials. Additionally, in a magnetic -free environment, we achieve all -optical cross -polarization modulation between the pump and probe light via Rb atoms. The nonlinear magneto -optical rotation configuration introduces inventive techniques for a new type of magnetooptical modulator while the all -optical configuration paves the way for exploring photonic integrated circuit (PIC) devices free from disruptions caused by electrical or magnetic crosstalk. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
FARADAY-ROTATION
CROSSTALK
ISOLATOR
DENSITY
GARNET