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Opt Lett. 2011 May 1;36(9):1536-8. doi: 10.1364/OL.36.001536.

Fiber fuse effect in hollow optical fibers.

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Institute of Physics and Applied Physics, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, South Korea.


We examined nonlinear fiber fuse effect (FFE) in hollow optical fibers (HOFs) that consist of a central air hole surrounded by a high-index ring core and silica cladding. In contrast to conventional solid-core fibers, the HOF with a hole diameter of 4 μm showed high threshold power of 4 W, and resulted in unique tadpole-like voids in periodic arrays after the FFE. As the hole diameter increased to 6 μm, plasma propagation was suppressed within the distance of 1 mm inside of the HOF. Detailed comparisons were made in terms of threshold power, void formation, and penetration length.

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