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1. (WO2009128200) GRADED INDEX MULTIMODE OPTICAL FIBER

Pub. No.:    WO/2009/128200    International Application No.:    PCT/JP2009/001141
Publication Date: Oct 22, 2009 International Filing Date: Mar 13, 2009
IPC: G02B 6/028
G02B 6/036
Applicants: MITSUBISHI CABLE INDUSTRIES, LTD.
三菱電線工業株式会社
OOIZUMI, Haruo
大泉晴郎
KUSUNOKI, Syuichi
楠修一
KINOSHITA, Takaharu
木下貴陽
HACHIWAKA, Masayoshi
八若正義
Inventors: OOIZUMI, Haruo
大泉晴郎
KUSUNOKI, Syuichi
楠修一
KINOSHITA, Takaharu
木下貴陽
HACHIWAKA, Masayoshi
八若正義
Title: GRADED INDEX MULTIMODE OPTICAL FIBER
Abstract:
Disclosed is a GI multimode optical fiber (10) comprising a core (11) having an outer diameter of 45-65 μm, a first cladding (12) so formed as to cover the core (11), a second cladding (13) so formed as to cover the first cladding (12) and composed of a material having a lower refractive index than that of the first cladding (12), and a third cladding (14) so formed as to cover the second cladding (13) and composed of a material having a higher refractive index than that of the second cladding (13). The ratio of the outer diameter of the first cladding (12) to the outer diameter of the core (11) is 1.15-1.25.