利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.015 秒)

    Low attenuation large effective area optical fiber
    1.
    发明授权
    Low attenuation large effective area optical fiber 有权
    低衰减大有效面积光纤

    公开(公告)号：US07187833B2

    公开(公告)日：2007-03-06

    申请号：US10835874

    申请日：2004-04-29

    申请人： Snigdharaj K. Mishra

    发明人： Snigdharaj K. Mishra

    IPC分类号： G02B6/02 ,  G02B6/36

    CPC分类号： G02B6/02014 ,  G02B6/02019 ,  G02B6/02242 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/0365

    摘要： An optical waveguide fiber having a multi-segmented core surrounded by a cladding, the core having a central segment and an annular segment surrounding the central segment. The central segment has a positive relative refractive index profile, and the annular segment has a negative relative refractive index profile. The optical fiber exhibits an effective area of greater than about 75 μm2 at a wavelength of about 1550 nm, a dispersion slope of less than 0.07 ps/nm2/km at a wavelength of about 1550 nm, a zero-dispersion wavelength of between about 1290 and 1330 nm, and an attenuation of less than 0.20 dB/km, and preferably less than 0.19 dB/km, at a wavelength of about 1550 nm.

    摘要翻译： 一种光纤，其具有由包层围绕的多分段磁芯，所述磁芯具有中心段和围绕中心段的环形段。 中心部分具有正的相对折射率分布，并且环形部分具有负的相对折射率分布。 光纤在约1550nm的波长处表现出大于约75μm2的有效面积，小于0.07ps / nm 2 / km / km的色散斜率在 约1550nm的波长，约1290至1330nm之间的零色散波长，以及在约1550nm波长处的衰减小于0.20dB / km，优选小于0.19dB / km。

    High figure of merit dispersion compensating fiber for standard single mode fiber and transmission system utilizing same
    2.
    发明授权
    High figure of merit dispersion compensating fiber for standard single mode fiber and transmission system utilizing same 失效
    用于标准单模光纤的高品质色散补偿光纤和利用它的传输系统

    公开(公告)号：US06925237B2

    公开(公告)日：2005-08-02

    申请号：US10670017

    申请日：2003-09-24

    申请人： Peter G. Hebgen ,  Snigdharaj K. Mishra

    发明人： Peter G. Hebgen ,  Snigdharaj K. Mishra

    IPC分类号： G02B6/036 ,  G02B6/18 ,  G02B6/22

    CPC分类号： G02B6/02261 ,  G02B6/02004 ,  G02B6/0228 ,  G02B6/03677

    摘要： A dispersion compensating optical fiber that includes a segmented core having a central core segment, a moat segment, and a ring segment wherein the ring segment is preferably offset from the moat outer radius, r2, by a ring offset, Xo, greater than 0.4 μm. The refractive index profile is selected to provide a total dispersion at 1550 nm of between about −120 and −145 ps/nm/km, and a total dispersion slope at 1550 nm of between about −0.36 and −0.56 ps/nm2/km. The refractive index profile is preferably further selected to provide a kappa, defined as the total dispersion at 1550 nm divided by the dispersion slope at 1550 nm, of between about 250 and 320 nm. Optical transmission systems including the present invention dispersion compensating optical fiber which have residual dispersion less than +/−15 ps/nm per 100 km of standard single mode transmission fiber are also disclosed.

    摘要翻译： 一种色散补偿光纤，其包括具有中心芯段，护环段和环段的分段芯，其中所述环段优选地与所述护城河外半径r 2偏离，通过环 偏移量，大于0.4mum。 选择折射率分布以在1550nm处提供介于约-120和-145ps / nm / km之间的总色散，并且在1550nm处的总色散斜率在约-0.36和-0.56ps / nm / 2 / km。 优选进一步选择折射率分布以提供κ，定义为1550nm处的总色散除以1550nm处的色散斜率在约250和320nm之间。 还公开了包括本发明的每100公里标准单模传输光纤具有小于+/- 15ps / nm的残余色散的本发明的光传输系统。

    Low attenuation large effective area optical fiber
    3.
    发明授权
    Low attenuation large effective area optical fiber 有权

    公开(公告)号：US07254305B2

    公开(公告)日：2007-08-07

    申请号：US11593272

    申请日：2006-11-06

    申请人： Snigdharaj K. Mishra

    发明人： Snigdharaj K. Mishra

    IPC分类号： G02B6/02 ,  G02B6/36

    CPC分类号： G02B6/02014 ,  G02B6/02019 ,  G02B6/02242 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/0365

    摘要： An optical waveguide fiber having a multi-segmented core surrounded by a cladding, the core having a central segment and an annular segment surrounding the central segment. The central segment has a positive relative refractive index profile, and the annular segment has a negative relative refractive index profile. The optical fiber exhibits an effective area of greater than about 75 μm2 at a wavelength of about 1550 nm, a dispersion slope of less than 0.07 ps/nm2/km at a wavelength of about 1550 nm, a zero-dispersion wavelength of between about 1290 and 1330 nm, and an attenuation of less than 0.20 dB/km, and preferably less than 0.19 dB/km, at a wavelength of about 1550 nm.

    Low bend loss optical fiber
    6.
    发明授权
    Low bend loss optical fiber 有权
    低弯曲损耗光纤

    公开(公告)号：US07272289B2

    公开(公告)日：2007-09-18

    申请号：US11241280

    申请日：2005-09-30

    申请人： Scott R. Bickham ,  Snigdharaj K. Mishra ,  Steven S. Rosenblum

    发明人： Scott R. Bickham ,  Snigdharaj K. Mishra ,  Steven S. Rosenblum

    IPC分类号： G02B6/036

    CPC分类号： G02B6/0365 ,  G02B6/02014 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/02395 ,  G02B6/0285 ,  G02B6/0286 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03638 ,  G02B6/14

    摘要： An optical fiber having both low macrobend loss and low microbend loss. The fiber has a MAC number less than 7.0 and a zero dispersion wavelength less than 1450 nm. The optical fiber advantageously comprises a primary coating and a secondary coating. The primary coating has a Young's modulus of less than 1.0 MPa and a glass transition temperature of less than −25° C. The secondary coating surrounds the primary coating, and the secondary coating has a Young's modulus of greater than 1200 MPa. The macrobend loss as measured by a 20 mm diameter bend test at 1550 nm is not more than 5.0 dB/m. Optical fiber ribbon and optical fiber cable that include the optical fiber is also disclosed.

    摘要翻译： 具有低弯曲损耗和低微弯损耗的光纤。 光纤的MAC数小于7.0，零色散波长小于1450nm。 光纤有利地包括初级涂层和二次涂层。 初级涂层的杨氏模量小于1.0MPa，玻璃化转变温度低于-25℃。二次涂层包围初级涂层，二次涂层的杨氏模量大于1200MPa。 通过在1550nm处的20mm直径弯曲试验测量的宏弯损耗不超过5.0dB / m。 还公开了包括光纤的光纤带和光纤电缆。

    Non-zero dispersion shifted optical fiber
    8.
    发明授权
    Non-zero dispersion shifted optical fiber 失效
    非零色散位移光纤

    公开(公告)号：US07106934B1

    公开(公告)日：2006-09-12

    申请号：US11174047

    申请日：2005-06-30

    申请人： Snigdharaj K. Mishra

    发明人： Snigdharaj K. Mishra

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02014 ,  G02B6/02242 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03672 ,  G02B6/03677 ,  G02B6/03688

    摘要： A low attenuation optical waveguide fiber having medium dispersion is disclosed. The core and the cladding are selected to provide a spectral attenuation at 1550 nm of less than 0.195 dB/km. The optical fiber exhibits an effective area of greater than about 60 μm2 at a wavelength of about 1550 nm, a dispersion slope of less than 0.07 ps/nm2/km at a wavelength of about 1550 nm, and a zero-dispersion wavelength of less than about 1500 nm.

    摘要翻译： 公开了一种具有介质色散的低衰减光波导光纤。 选择核心和包层以在1550nm处提供小于0.195dB / km的光谱衰减。 光纤在约1550nm的波长处表现出大于约60μm的有效面积，小于0.07ps / nm 2 / km的色散斜率在 约1550nm的波长和小于约1500nm的零色散波长。

    Low macrobending loss optical fiber
    9.
    发明授权
    Low macrobending loss optical fiber 失效
    低宏弯损耗光纤

    公开(公告)号：US06904215B2

    公开(公告)日：2005-06-07

    申请号：US10444180

    申请日：2003-05-23

    申请人： William R. Christoff ,  Kristina M. Jeric ,  David T. Marlowe ,  Snigdharaj K. Mishra

    发明人： William R. Christoff ,  Kristina M. Jeric ,  David T. Marlowe ,  Snigdharaj K. Mishra

    IPC分类号： G02B6/02 ,  G02B6/028 ,  G02B6/18

    CPC分类号： G02B6/0281 ,  G02B6/02009 ,  G02B6/02271 ,  G02B6/02395 ,  G02B6/03611

    摘要： The present invention provides an optical fiber suitable for the manufacture of optical fiber couplers and having low macrobending loss, low cutoff wavelength, low attenuation, and low sensitivity to variations in overclad mass. One aspect of the present invention provides an optical fiber having a core having an index profile, the index profile of the core having a value of α of between about 1.7 and about 3.0; and a cladding region surrounding and in contact with the core, the cladding region having an outer radius of at least about 40 μm, wherein the optical fiber has a cutoff wavelength of between about 870 nm and about 970 nm, and a macrobending loss of below about 1 dB at a wavelength of 1550 nm when wrapped one turn around a 32 mm mandrel.

    摘要翻译： 本发明提供一种适用于制造光纤耦合器的光纤，具有低的宏弯损耗，低截止波长，低衰减和对外包层质量变化的低灵敏度。 本发明的一个方面提供一种光纤，其具有具有折射率分布的芯，所述芯的折射率分布具有约1.7至约3.0的α值; 以及围绕所述芯的包层区域，所述包层区域具有至少约40μm的外半径，其中所述光纤具有在约870nm和约970nm之间的截止波长，以及下面的宏弯损耗 当围绕32mm心轴缠绕一圈时，在1550nm波长处约1dB。