Optical fiber and optical transmission line and optical communication system including such optical fiber
    51.
    发明申请
    Optical fiber and optical transmission line and optical communication system including such optical fiber 审中-公开
    光纤和光传输线以及包括这种光纤的光通信系统

    公开(公告)号:US20080063349A1

    公开(公告)日:2008-03-13

    申请号:US11976780

    申请日:2007-10-29

    IPC分类号: G02B6/036

    摘要: Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.

    摘要翻译: 用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤,具有以下特性和参数:波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1430nm至1625nm,波长1550nm处的绝对值为0.04ps / nm 2 / km或更小的色散斜率,波长为10μm以下的模场直径为7μm以下 1550nm,电缆截止波长小于1430nm; 芯11由包层7包围,芯11为至少两层(中心为第一层1,围绕第一层为第二层2;玻璃层Delta 1相对于包层的相对折射率调整为不小于 0.6但不超过1.6%,相对于包层将第二层Delta 2的相对折射率调整为负值。

    Optical fiber and optical transmission line and optical communication system including such optical fiber
    52.
    发明授权
    Optical fiber and optical transmission line and optical communication system including such optical fiber 有权
    光纤和光传输线以及包括这种光纤的光通信系统

    公开(公告)号:US07321711B2

    公开(公告)日:2008-01-22

    申请号:US11522315

    申请日:2006-09-18

    申请人: Naomi Kumano

    发明人: Naomi Kumano

    IPC分类号: G02B6/16

    摘要: Optical fibers to form an optical transmission line suitable for WDM transmission in a wide-spreading wavelength band, having the following characteristics and parameters: a dispersion in absolute value of 0.5 ps/nm/km to 9 ps/nm/km in a wavelength band of 1430 nm to 1625 nm, a dispersion slope in absolute value of 0.04 ps/nm2/km or less at a wavelength of 1550 nm, a mode field diameter of 7 μm or less at a wavelength of 1550 nm and a cable cutoff wavelength of less than 1430 nm; core 11 surrounded by cladding 7, core 11 being at least two-layered (first layer 1 at the center and second layer 2 surrounding the first layer; relative refractive index of glass layer Δ1 with reference to the cladding being adjusted to not less than 0.6 but not more than 1.6%, relative refractive index of second layer Δ2 with reference to the cladding being adjusted to a negative value.

    摘要翻译: 用于形成适用于宽扩频波段中的WDM传输的光传输线的光纤,具有以下特性和参数:波长带中绝对值的偏差为0.5ps / nm / km至9ps / nm / km 为1430nm至1625nm,波长1550nm处的绝对值为0.04ps / nm 2 / km或更小的色散斜率,波长为10μm以下的模场直径为7μm以下 1550nm,电缆截止波长小于1430nm; 芯11由包层7包围,芯11为至少两层(中心为第一层1,围绕第一层为第二层2;玻璃层Delta 1相对于包层的相对折射率调整为不小于 0.6但不超过1.6%,相对于包层将第二层Delta 2的相对折射率调整为负值。

    Method of imparting twist to optical fiber
    57.
    发明申请
    Method of imparting twist to optical fiber 失效
    赋予光纤扭转的方法

    公开(公告)号:US20060133751A1

    公开(公告)日:2006-06-22

    申请号:US11015509

    申请日:2004-12-16

    IPC分类号: G02B6/02

    摘要: A method for producing low-PMD fiber, in which a glass fiber is drawn from an optical fiber perform by a tractor which pulls such optical fiber from said perform; subsequent to said tractor pulling the fiber is twisted about its axis to increase the magnitude of twist which is imparted to said fiber. The fiber is then wound onto a fiber storage spool such that at least a portion of the twist imparted to said optical fiber is retained while said fiber is wound on said spool.

    摘要翻译: 一种生产低PMD纤维的方法,其中玻璃纤维从由所述表面拉动这种光纤的拖拉机执行的光纤中拉出; 在所述拖拉机拉动之后,纤维围绕其轴线扭曲以增加赋予所述纤维的捻度的大小。 然后将纤维卷绕到纤维储存卷轴上,使得当所述纤维缠绕在所述卷轴上时,赋予所述光纤的扭曲的至少一部分被保持。

    Optical fiber and optical transmission system using such optical fiber
    59.
    发明授权
    Optical fiber and optical transmission system using such optical fiber 失效
    使用这种光纤的光纤和光传输系统

    公开(公告)号:US06983094B2

    公开(公告)日:2006-01-03

    申请号:US10453893

    申请日:2003-06-04

    申请人: Kazunori Mukasa

    发明人: Kazunori Mukasa

    IPC分类号: G02B6/02

    摘要: An optical fiber comprising a core and a cladding characterized by a dispersion of 0 to 17 ps/nm/km, an effective area (Aeff) of 130 μm2 or more, a bending loss of 10 dB/m or less in a diameter of 20 mm, a dispersion slope of 0 ps/nm2/km to 0.08 db/nm2/km at a wavelength of 1550 nm, and a cutoff wavelength λc of a 2 m length of fiber of 1700 nm or shorter, is provided. The optical fiber and an optical transmission system of the present invention are suitable for the WDM transmission.

    摘要翻译: 一种包括芯和包层的光纤,其特征在于分散为0至17ps / nm / km,有效面积(Aeff)为130μm2以上,弯曲损耗为10dB / m或更小,在波长1550nm处的色散斜率为0ps / nm 2 / km至0.08db / nm 2 / km, 并且提供了具有1700nm或更短的2m长纤维的截止波长兰德卡。 本发明的光纤和光传输系统适用于WDM传输。