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Light-induced breakdown of low-melting glass with thickness of 50 um is demonstrated, which was coated with carbon paint and formed between two end of single-mode silica glass optical fibers. This phenomenon is useful to make irreversible optical limiting devices known as optical fuse. The present structure breaks by 1.2-5.3 W of incident light (~1.5 um), exhibits low insertion loss of less than 1 dB, and is formed by dipping-up a small amount of hot glass melt between fibers, aligning the fibers and quenching them. The relation between shape of the captured melt and its insertion loss is discussed.

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Keyword: telluria glass, light-induced deformation, optical fiber, low melting glass, optical fuse

Date published: 2004-09-27

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Manuscript type: Author's version (Submitted manuscript)

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Updated at: 2022-10-03 01:26:09 +0900

Published on MDR: 2021-08-14 03:54:39 +0900