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    • 2. 发明申请
    • OPTICAL FIBER WITH IMPROVED BENDING BEHAVIOR
    • 具有改进弯曲行为的光纤
    • WO2005106544A1
    • 2005-11-10
    • PCT/KR2004/001022
    • 2004-04-30
    • LS CABLE LTD.PARK, Hye-YoungMUN, Jun-HoKIM, Chang-An
    • PARK, Hye-YoungMUN, Jun-HoKIM, Chang-An
    • G02B6/00
    • G02B6/0281G02B6/02004G02B6/02223G02B6/02266G02B6/14
    • An optical fiber with improved bending behavior is disclosed. The optical fiber, a single mode optical fiber having core and clad, satisfies α-profile wherein a refractive index in the core is increased toward its center, and has a specific refractive index difference Δ 1 in the central region of the core and Δ 2 at a radius r core of the core. The optical fiber also satisfies a mode field diameter of 8.6~9.5µm at 1310nm wavelength, a zero dispersion wavelength of 1300~1324nm, a dispersion of 18 ps/nm-km or less at a 1550nm, a cable cutoff wavelength of 1260nm or less, a bending loss of 0.1dB or less at 1625nm when wound 100 times with a bending radius of 25mm. Thus, the optical fiber may satisfy every optical characteristic such as zero dispersion wavelength and dispersion at 1500nm, suggested by the general and common signal mode optical fiber, though the bending loss is decreased.
    • 公开了一种具有改进弯曲性能的光纤。 光纤是具有芯和包层的单模光纤,满足α轮廓,其中芯中的折射率朝向其中心增加,并且在芯的中心区域中具有特定折射率差Δ1,在 核心的半径rcore。 光纤在1310nm波长,零色散波长为1300〜1324nm,在1550nm处的色散为18ps / nm-km以下,电缆截止波长为1260nm以下,也满足8.6〜9.5μm的模场直径 当弯曲半径为25mm的情况下,以1625nm弯曲100次弯曲损失为0.1dB以下。 因此,尽管弯曲损耗降低,光纤可以满足通常的信号模式光纤和普通信号模式光纤所提出的1500nm处的零色散波长和色散的每种光学特性。
    • 7. 发明申请
    • OPTICAL FIBER SUITABLE FOR HIGH-SPEED LARGE-SCALE WDM SYSTEM, OPTICAL TRANSMISSION LINE AND OPTICAL TRANSMISSION SYSTEM USING THE SAME
    • 光纤适用于高速大规模波分复用系统,光传输线和光传输系统
    • WO2005008306A1
    • 2005-01-27
    • PCT/KR2003/002006
    • 2003-09-30
    • LG CABLE LTD.PARK, Hye-YoungMOON, Joon-Ho
    • PARK, Hye-YoungMOON, Joon-Ho
    • G02B6/16
    • G02B6/02242G02B6/02009G02B6/03644
    • Disclosed is a single-mode optical fiber suitable for and optical transmission line used in WDM (Wavelength Division Multiplexing) system, which has low dispersion slope, sufficient dispersion value and large effective section area over S-, C- and L- band (1460~1625nm) to enable high-speed, large-capacity signal transmission. The optical fiber uses the wavelength region from 1460 to 1625nm, and the optical fiber also has a dispersion value of 0.1~3.0ps/nm-km, more preferably 0.3~2.4ps/nm-km, at 1460nm, a dispersion value of 3.0~5.5ps/nm-km, more preferably 3.2~5.2ps/nm-km, at 1550nm, and a dispersion value of 4.5~8.0ps/nm-km, more preferably 4.8~7.7ps/nm-km, at 1625nm. In addition, the optical fiber has a dispersion slope of 0.023~0.05ps/nm-km 2 at 1550nm, an effective sectional area of 35~50µm 2 at 1550nm, an effective section area of 35~50µm 2 at 1460nm. Thus, though the signal is transmitted through S-, C- and L- band, this optical fiber may suppress nonlinear phenomenon and signal distortion to the minimum.
    • 公开了一种适用于WDM(波分复用)​​系统的单模光纤,在WDM(波分复用)​​系统中具有低色散斜率,足够的色散值和大于S,C和L带的有效截面积(1460) 〜1625nm),实现高速,大容量信号传输。 光纤使用1460〜1625nm的波长区域,光纤在1460nm处的色散值为0.1〜3.0ps / nm-km,更优选为0.3〜2.4ps / nm-km,色散值为3.0 在1550nm处〜5.5ps / nm-km,更优选3.2〜5.2ps / nm-km,在1625nm处的分散值为4.5〜8.0ps / nm-km,更优选为4.8〜7.7ps / nm-km。 此外,光纤在1550nm处的色散斜率为0.023〜0.05ps / nm-km,在1550nm处有效截面积为35〜50μm,有效截面积为35〜50μm2 在1460nm。 因此,尽管信号通过S-,C-和L-频带传输,但是该光纤可以将非线性现象和信号失真抑制到最小。