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  In situ observation of modulated light emission of fiber fuse synchronized with void train over hetero-core splice point

Todoroki, S.-i. (2008). In situ observation of modulated light emission of fiber fuse synchronized with void train over hetero-core splice point. PLoS ONE, 3(9), e3276. doi:10.1371/journal.pone.0003276.

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Item Permalink: Version Permalink: http://pubman.nims.go.jp/pubman/item/escidoc:33039:8
Genre: Journal Article
Alternative Title : 異径コア融着点を通過するファイバヒューズのその場観察と空孔列の変調パターンとの関係

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http://dx.doi.org/10.1371/journal.pone.0003276 (Publisher version)
Description:
Japanese translation is included. See Text S2.

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 Creators:
Todoroki, Shin-ichi1, Author              
Affiliations:
1Optronic Materials Center, Tsukuba, Japan, escidoc:29036              

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Free keywords: fiber fuse
 Abstract: Fiber fuse is a process of optical fiber destruction under the action of laser radiation, found 20 years ago. Once initiated, opical discharge runs along the fiber core region to the light source and leaves periodic voids whose shape looks like a bullet pointing the direction of laser beam. The relation between damage pattern and propagation mode of optical discharge is still unclear even after the first in situ observation three years ago. Fiber fuse propagation over hetero-core splice point (Corning SMF-28e and HI 1060) was observed in situ. Sequential photographs obtained at intervals of 2.78 us recorded a periodic emission at the tail of an optical discharge pumped by 1070 nm and 9 W light. The signal stopped when the discharge ran over the splice point. The corresponding damage pattern left in the fiber core region included a segment free of periodicity. The spatial modulation pattern of the light emission agreed with the void train formed over the hetero-core splice point. Some segments included a bullet-shaped void pointing in the opposite direction to the laser beam propagation although the sequential photographs did not reveal any directional change in the optical discharge propagation.
 Abstract: 異径コア(Corning SMF-28eとHI 1060)融着点付近を通過するファイバヒューズをその場観察した。1070 nm 9 Wの光を供給した光学的放電を2.78 us毎に記録した一連の写真から、その末尾に周期的発光が現れることがわかった。この信号は、異径コア融着点を横切る時には現れない。この時にコア領域に残される損傷パターンには、周期性が欠落した区間が認められた。いくつかの区間には、レーザー光の進行方向とは逆の方向に向いた弾丸状空孔が現れたが、ビデオ映像では光学的放電が進行方向を変えた形跡は残されていなかった。

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Language(s): eng - English
 Dates: 2008-07-042008-09-032008-09-25
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1371/journal.pone.0003276
 Degree: -

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Title: PLoS ONE
Source Genre: Journal
 Creator(s):
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Publ. Info: -
Pages: - Volume / Issue: 3 (9) Sequence Number: - Start / End Page: e3276 - Identifier: ISSN: 1817101X