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    • 10. 发明申请
    • OPTICAL FIBER FOR METROPOLITAN AND ACCESS NETWORK SYSTEMS
    • 光纤光栅和接入网络系统
    • WO00037977A1
    • 2000-06-29
    • PCT/EP1999/009963
    • 1999-12-15
    • G02B6/02G02B6/036H04B10/02H04B10/18G02B6/16
    • G02B6/02014G02B6/02223G02B6/02238G02B6/02271G02B6/0285G02B6/03605G02B6/03611G02B6/03622G02B6/03644G02B6/29377
    • An optical transmission fiber for use in a metropolitan or access network is disclosed. The transmission line includes a fiber being single mode at a first operating wavelength of around 1310 nm and a second operating wavelength of around 1550 nm. The dispersion of the fiber is negative at one of the first and second operating wavelengths and positive at the other of the first and second operating wavelengths, with an absolute value of between about 5 ps/nm/km and 15 ps/nm/km. The fiber also has a zero dispersion wavelength that is located between the first and second operating wavelengths, and an effective area at a wavelength around 1550 nm greater than about 60 mu m . The cabled fiber has a cutoff wavelength less than about 1300 nm. The fiber allows wavelength division multiplexing (WDM) operation in both the bands (1310 nm and 1550 nm) by reducing nonlinear effects such as four-wave mixing (FWM).
    • 公开了一种用于大都市或接入网络的光传输光纤。 传输线包括在约1310nm的第一工作波长和约1550nm的第二工作波长下为单模的光纤。 光纤的色散在第一和第二工作波长中的一个处为负,在第一和第二工作波长的另一个处为正,绝对值为约5ps / nm / km至15ps / nm / km。 光纤还具有位于第一和第二工作波长之间的零色散波长,以及大于约150μm2的约1550nm波长处的有效面积。 电缆光纤具有小于约1300nm的截止波长。 通过减少诸如四波混频(FWM)的非线性效应,该光纤允许波段(1310nm和1550nm)中的波分复用(WDM)操作。