Harvesting Planck radiation for free-space optical communications in the LWIR band

Autor: Weinstein, Haley A., Cai, Zhi, Cronin, Stephen B., Habif, Jonathan L.
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1364/OL.476394
Popis: 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.
Databáze: arXiv