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TODOROKI, Shin-ichi
Address
305-0044 1-1 Namiki Tsukuba Ibaraki JAPAN [Access]
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Research

Keywords

光ファイバ工学 画像解析 情報管理

Working on optical fibers exposed with high power laser beam.

researchPicture

Illustration showing (1) the ignition, (2) the propagation, and (3) the termination of a fiber fuse. A fiber fuse is initiated by the local heating of a single-mode optical fiber made of silica glass delivering a few watts of light, which generates an optical discharge running along the fiber to the light source at about 1 m/s (see my portrait). This is due to the temperature dependence of the light absorbance of silica glass, which increases rapidly beyond 1300 K and causes light-heat conversion that generates an optical discharge of several thousands of K. This results in the catastrophic destruction of the core region and the formation of periodic voids (see background photo, its interval is about 20 um.) and the damaged fiber no longer transports light.

PublicationsNIMS affiliated publications since 2004.

Research papers
Books
Proceedings
Presentations
Patents
  • No. 3273321 ガラス熱物性評価方法およびガラス物性評価装置 (2002)
  • No. 3472808 ガラス複合体の製造方法とその製造装置 (2003)
  • No. 3559853 ガラス熔融装置および熔融方法 (2004)

Society memberships

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Awards

  • (2016)
  • (2013)
  • (2002)
  • (1999)
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