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 th e 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/nm2/km over an extended range of carrier wavelengths for the transmission system, such as the range 1450-1650 nm. |
申请公布号 |
CA2344865(A1) |
申请公布日期 |
2000.03.30 |
申请号 |
CA19992344865 |
申请日期 |
1999.09.21 |
申请人 |
PIRELLI CAVI E SISTEMI S.P.A. |
发明人 |
TIRLONI, BARTOLOMEO ITALO |
分类号 |
G02B6/036;G02B6/00;G02B6/02 |
主分类号 |
G02B6/036 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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