Harvesting Planck radiation for free-space optical communications in the long-wave infrared band
Harvesting Planck radiation for free-space optical communications in the long-wave infrared band
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DOI：
10.1364/ol.476394
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发表时间：
2022-12-01
期刊：
影响因子：
3.6
通讯作者：
Habif, Jonathan L.
中科院分区：
文献类型：
--
作者：
Weinstein, Haley A.;Cai, Zhi;Habif, Jonathan L.
我们演示了一种自由空间光通信链路，该链路使用光学发射机从温暖的物体中收集自然发生的普朗克辐射并调制发射强度。该发射器利用多层石墨烯器件中的电热光学效应，通过电控制器件的表面发射率，从而控制发射的普朗克辐射强度。我们设计了一种调幅光通信方案，并根据发射机的实验电光特性提供了通信数据速率和范围的链路预算。最后，我们提出了一个实验演示，在实验室尺度上实现每秒100比特的无错误通信。(c) 2022光学出版集团
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 electrothermo-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. (c) 2022 Optica Publishing Group