发明名称 |
Optical fiber for extended wavelength band |
摘要 |
An optical transmission fiber for use in a wavelength division multiplexing transmission system is disclosed. The transmission fiber includes an inner core surrounded by a first, second and at least a third glass layer along the length of the fiber. The first glass layer has a depressed refractive-index difference and the second glass layer has a refractive-index difference of substantially zero. The third glass layer has a positive refractive-index difference. The fiber has an improved relationship between dispersion slope and depressed profile volume. The fiber can have a dispersion value of at least 1.5 ps/nm/km and a dispersion slope of less than about 0.07 ps/nm<2>/km over an extended range of carrier wavelengths for the transmission system, such as the range 1450-1650 nm.
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申请公布号 |
US6751389(B2) |
申请公布日期 |
2004.06.15 |
申请号 |
US20010812019 |
申请日期 |
2001.03.20 |
申请人 |
PIRELLI CAVI E SISTEMI S.P.A. |
发明人 |
TIRLONI BARTOLOMEO ITALO |
分类号 |
G02B6/036;G02B6/00;(IPC1-7):G02B6/22 |
主分类号 |
G02B6/036 |
代理机构 |
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代理人 |
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地址 |
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