Abstract

Alumina is an indispensable dopant in modern optical fiber technology, particularly due to its important role played in the recent developments of optical fiber amplifiers and high-power fiber lasers over the last decade or so, which have revolutionized the telecommunication systems, and the industrial laser landscapes, respectively. In this paper, Alumina-doped optical fibers advanced through the outside vapor deposition process and their key attributes in the respective applications are reviewed, with Alumina both as a sole dopant for its potential use in the low-loss transmission lines and as a co-dopant for active use in the high-brightness, high-power fiber laser applications.

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