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Featured researches published by Tomohiro Nunome.


optical fiber communication conference | 2007

Design Optimization of Trench Index Profile for the same dispersion characteristics with SMF

Shoichiro Matsuo; Tomohiro Nunome; Takeshi Yoshida; Takahiro Hamada; Kuniharu Himeno

An optimized design on a trench index profile for bend-insensitive SMF is presented. The same dispersion characteristic with standard SMF with ultra low bending loss has been realized by optimization of trench index profile.


IEICE Transactions on Electronics | 2008

Dispersion and Splice Characteristics of Bend-Insensitive Fibers with Trench-Index Profile Compliant with G.652

Shoichiro Matsuo; Tomohiro Nunome; Kuniharu Himeno; Haruhiko Tsuchiya

The dispersion and the splice characteristics of optical fibers with trench-index profile are investigated. The normalized distance between core and trench is preferably larger than 3.0 to realize complete compatibility with the standard G.652 fiber in terms of chromatic dispersion. The optical fiber realizes compatibility with ITU-T Recommendation G.652 fiber and bend-insensitivity simultaneously. Fabricated fibers with the trench-index profiles can be spliced to standard single-mode fiber with low losses, which have similar values with simulation results.


Archive | 2002

Single Mode Optical Fiber and Manufacturing Method Therefor

Tomohiro Nunome; Hiroshi Kutami; Manabu Saitou; Kenji Okada; Munehisa Fujimaki; Koichi Harada


Archive | 2004

METHOD FOR MANUFACTURING GLASS ROD-LIKE BODY

Tomohiro Nunome; Shigetoshi Yamada; 成敏 山田; 智宏 布目


Archive | 2002

Method and apparatus for manufacturing porous base material

Munehisa Fujimaki; Takakazu Goto; Koichi Harada; Masahiro Horikoshi; Hiroshi Kuami; Tomohiro Nunome; Keisuke Uchiyama; 圭祐 内山; 光一 原田; 雅博 堀越; 智宏 布目; 孝和 後藤; 寛 朽網; 宗久 藤巻


Archive | 2005

Method for manufacturing glass rod

Tomohiro Nunome; Naritoshi Yamada


Archive | 2009

OPTICAL FIBER MANUFACTURING APPARATUS AND OPTICAL FIBER MANUFACTURING METHOD

Tomohiro Nunome


Archive | 2011

Method of manufacture for porous quartz material, method of manufacture for optical fibre pre-form, porous quartz material and optical fibre pre-form

Tomohiro Nunome; 智宏 布目


Archive | 2005

Optical fiber preform, optical fiber, and method for producing the optical fiber

Takakazu Goto; Tomohiro Nunome; Shigetoshi Yamada; 成敏 山田; 智宏 布目; 孝和 後藤


Archive | 2011

METHOD OF ATTACHING AND DETACHING PREFORM AND METHOD OF MANUFACTURING OPTICAL FIBER

Tomohiro Nunome

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