Harvesting Planck radiation for free-space optical communications in the long-wave infrared band.
Opt Lett
; 47(23): 6225-6228, 2022 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-37219212
ABSTRACT
We demonstrate a free-space optical communication link with an optical transmitter that harvests naturally occurring Planck radiation from a warm body and modulates the emitted intensity. The transmitter exploits an electro-thermo-optic effect in a multilayer graphene device that electrically controls the surface emissivity of the device resulting in control of the intensity of the emitted Planck radiation. We design an amplitude-modulated optical communication scheme and provide a link budget for communications data rate and range based on our experimental electro-optic characterization of the transmitter. Finally, we present an experimental demonstration achieving error-free communications at 100 bits per second over laboratory scales.
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01-internacional
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MEDLINE
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En
Ano de publicação:
2022
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Article