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Delayed Response of Silica Melt to Pump Modulation

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Fiber Fuse

Part of the book series: NIMS Monographs ((NIMSM))

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Abstract

Periodic void formation has the function of a built-in clock made of silica melt, and its frequency is expected to shift with changes in pump power. Thus, the variation in the periodic void interval along the fiber length is precisely measured to determine the relationship with the pump power modulation. This analysis revealed the sub-millisecond order delayed response of the silica melt. Moreover, a large power jump suspends the clock and leave a void-free segment or a long void until the melt restores its state of thermal equilibrium.

On ne voit bien qu’avec le coeur. L’essentiel est invisible pour les yeux. — ‘Le Petit Prince’,

Antoine de Saint-Exupéry

It is only with the heart that one can see rightly; what is essential is invisible to the eye. — ‘The Little Prince’,

Katherine Woods (trans.)

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  1. Photonic Materials Unit, National Institute for Materials Science, Ibaraki, Japan

    Shin-ichi Todoroki

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  1. Shin-ichi Todoroki
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Correspondence to Shin-ichi Todoroki .

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© 2014 National Institute for Materials Science, Japan. Published by Springer Japan

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Todoroki, Si. (2014). Delayed Response of Silica Melt to Pump Modulation. In: Fiber Fuse. NIMS Monographs. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54577-4_4

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