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Extremely cold and highly efficient: Scientists present new light fiber
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Instanz: TeilenTeilen:Extremely cold and highly efficient: Scientists present new light fiberEdda Fischer Kommunikation und MarketingMax-Planck-Institut für die Physik des Lichts21.07.2026 15:33Researchers have developed a new type of optical fiber by freezing a glass capillary filled with liquid.
It guides light and sound waves simultaneously and enables highly efficient coupling between them.
This fundamental physical process is also used during the melting of glass preforms to loosen their structure while pulling optical fiber.
For more specialized applications, for example fiber lasers, fiber endoscopes or fiber sensors, other types of optical fibers have been developed.
The researchers utilize the extremely efficient coupling between light and sound in their new fiber, an effect known as Brillouin-Mandelstam scattering.