发明名称 |
Large mode field diameter optical fiber |
摘要 |
A large mode field diameter optical fiber is disclosed. It is a single mode optical fiber which has a core and a cladding. The core of this fiber has two regions, an inner core region and an outer core region which has a refractive index lower than that of the inner core region. The inner core region is doped with a rare-earth element, such as Er2O3, and a co-dopant, such as Al2O3, and the outer core region is doped with a dopant such as GeO2. The types and amounts of the dopants and co-dopants are adjusted to obtain a fiber with a mode field diameter greater than 5.5 mum at a wavelength of 1550 nm.
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申请公布号 |
US2005069270(A1) |
申请公布日期 |
2005.03.31 |
申请号 |
US20030673225 |
申请日期 |
2003.09.30 |
申请人 |
DE SANDRO JEAN-PHILIPPE;CHATIGNY STEPHANE;GAGNON ERIC;CHENARD FRANCOIS |
发明人 |
DE SANDRO JEAN-PHILIPPE;CHATIGNY STEPHANE;GAGNON ERIC;CHENARD FRANCOIS |
分类号 |
G02B6/036;(IPC1-7):G02B6/16 |
主分类号 |
G02B6/036 |
代理机构 |
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地址 |
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