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Scientists achieve strong light and sound coupling in optical fiber

Researchers published findings in Nature Physics about achieving strong coupling between light and acoustic vibrations inside an optical fiber.

A highway instead of a racetrack: Strong coupling of light and sound in an optical fiber
File photo A highway instead of a racetrack: Strong coupling of light and sound in an optical fiber Photo: Phys.org

New quantum processing capabilities emerge

The results demonstrate that optical fibers can now function as quantum processors rather than just simple connections. This breakthrough allows for the conversion of signals across different frequency ranges including terahertz and gigahertz. Such a system could link multiple quantum computers operating at high frequencies via optical links.

Slow waves enable data storage

Acoustic waves travel significantly slower than light, creating a medium for transporting slowly moving information. This property supports temporary buffering of data and aids in long-term storage applications. The strong coupling regime ensures quantum information is exchanged before losses occur.

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