Using air to amplify light | Hollow-core optical fibers
Автор: Rajamanickam Antonimuthu
Загружено: 2020-08-10
Просмотров: 13613
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The Fiber Optics Group in EPFL's School of Engineering has developed a technology to amplify light inside the latest hollow-core optical fibers.
This new technology can be a promising breakthrough for the future of communications.
Today's optical fibers usually have a solid glass core, so there's no air inside. Light can travel along the fibers but loses half of its intensity after 15 kilometers. It keeps weakening until it can hardly be detected at 300 kilometers. So to keep the light moving, it has to be amplified at regular intervals.
The EPFL's new approach is based on new hollow-core optical fibers that are filled with either air or gas.
Credit: Alain Herzog/2020 EPFL
Credit: Valérie Geneux/Alain Herzog/2020 EPFL
Research Paper: Intense Brillouin amplification in gas using hollow-core waveguides https://www.nature.com/articles/s4156...
News Source: https://www.eurekalert.org/pub_releas...
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