Construction of tapered rare-earth atom-doped optical fiber. (IMAGE)

Tokyo University of Science

Construction of tapered rare-earth atom-doped optical fiber.

Caption

Schematic diagram and microscopic observation of an optical fiber doped with rare-earth atoms. The fluorescence from the entire optical fiber can be seen. (b) Schematic diagram and microscopic observation of the optical fiber after heat and pull processing.  Fluorescence from a single rare-earth atom isolated in the optical fiber can be seen.

Credit

Kaoru Sanaka from Tokyo University of Science (TUS), Japan

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