利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

54 条记录 (耗时 0.019 秒)

    Broadband access optimized fiber and method of making
    2.
    发明授权
    Broadband access optimized fiber and method of making 有权
    宽带接入优化光纤及其制作方法

    公开(公告)号：US06798962B2

    公开(公告)日：2004-09-28

    申请号：US10085798

    申请日：2002-02-26

    申请人： George E. Berkey ,  Yanming Liu ,  Walter F. Love ,  Daiping Ma

    发明人： George E. Berkey ,  Yanming Liu ,  Walter F. Love ,  Daiping Ma

    IPC分类号： G02B618

    CPC分类号： G02B6/0288 ,  G02B6/02019 ,  G02B6/02047 ,  G02B6/02266

    摘要： The present invention provides an optical fiber, comprising a core having an alpha parameter in the range of approximately 2 to approximately 8, a maximum index percent difference between the core and a cladding in the range of approximately 0.3% to approximately 0.5% and a core diameter in the range of approximately 6.0 to approximately 16.0 &mgr;m and a cladding. The optical fiber has a bandwidth of at least approximately 0.6 GHz.km at 850 nm, and is configured for multimode operation at a wavelength less than 1300 nm and single mode operation at a wavelength of at least approximately 1300 nm. The fiber also has significantly reduced intermodal noise. The present invention also includes a method of designing such a fiber, a fiber optic system provided such a fiber and a method of operating a fiber optic system with such a fiber.

    摘要翻译： 本发明提供了一种光纤，其包括具有约2至约8范围内的α参数的芯，在芯和包层之间的最大折射率百分比差在约0.3％至约0.5％的范围内，并且芯 直径在约6.0至约16.0μm的范围内和包层。 该光纤在850nm处具有至少约0.6GHz.km的带宽，并且被配置为在小于1300nm的波长下进行多模操作，并且在至少约1300nm的波长下进行单模操作。 光纤也显着降低了多式联运噪声。 本发明还包括设计这种光纤的方法，提供这种光纤的光纤系统和使用这种光纤操作光纤系统的方法。

    Waveguide profile for large effective area
    3.
    发明授权
    Waveguide profile for large effective area 失效
    波导形状大面积有效

    公开(公告)号：US06421489B1

    公开(公告)日：2002-07-16

    申请号：US09530018

    申请日：2000-04-21

    申请人： George E. Berkey ,  Yanming Liu

    发明人： George E. Berkey ,  Yanming Liu

    IPC分类号： G02B602

    CPC分类号： G02B6/03627 ,  G02B6/02019 ,  G02B6/02238 ,  G02B6/0228 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/03611

    摘要： Disclosed is a single mode optical waveguide fiber having a segmented core design. The core may have two or more segments. The highest refractive index portion of the core is spaced apart from the centerline of the waveguide fiber. The relative index of the first or center segment of the core is negative, where the reference refractive index is taken to be the minimum index clad. This family of core profiles provides effective areas in the range of 110 &mgr;m2 to 150 &mgr;m2 in the operating window around 1550 nm.

    摘要翻译： 公开了具有分段核设计的单模光纤。 核心可以具有两个或更多个段。 芯的最高折射率部分与波导纤维的中心线间隔开。 芯的第一或中心部分的相对折射率为负，其中参考折射率被认为是最小折射率包层。 这个核心轮廓系列在1550nm左右的操作窗口中提供了在110m2到150mum2范围内的有效面积。

    Anodizing Electrolytes Using A Dual Acid System For High Voltage Electrolytic Capacitor Anodes
    8.
    发明申请
    Anodizing Electrolytes Using A Dual Acid System For High Voltage Electrolytic Capacitor Anodes 审中-公开
    用高电压电解电容阳极的双酸性阳极氧化电解质

    公开(公告)号：US20070221507A1

    公开(公告)日：2007-09-27

    申请号：US11677342

    申请日：2007-02-21

    申请人： Yanming Liu ,  David Goad ,  David Budek ,  Christina Scheuer

    发明人： Yanming Liu ,  David Goad ,  David Budek ,  Christina Scheuer

    IPC分类号： C25D9/00

    CPC分类号： C25D11/26 ,  A61N1/3975 ,  C25D11/024 ,  C25D11/08 ,  H01G9/0032

    摘要： An improved formation electrolyte and method for anodizing valve metal anodes used in electrolytic capacitors, particularly for high voltage sintered tantalum powder anode, is described. The anodizing electrolyte composition is comprised of 1) a phosphorus oxyacid and/or its salt, such as phosphoric acid and ammonium phosphate; 2) a weak inorganic acid/salt (such as boric acid, ammonium borate) or a weak carboxylic acid/salt; 3) water; and 4) a protic solvent or a mixture of two or more protic solvents. The weak mono-carboxylic acid/salt has 2 to 7 carbon atoms and the weak di- or poly-carboxylic acid/salt has 3 to 13 carbon atoms. The present electrolytes have high anodizing breakdown voltage capability and the formed dielectric oxides have improved oxide quality including good oxide hydration resistant ability, and result in more stable capacitor performance. These properties are particularly important for critical applications such as implantable cardioverter defibrillators (ICDs). Significantly, this means that fewer capacitors are needed to meet an ICD's operating voltage.

    摘要翻译： 描述了用于阳极氧化用于电解电容器中的阀金属阳极，特别是用于高压烧结钽粉末阳极的改进的地层电解质和方法。 阳极氧化电解质组合物包括1）磷酸和/或其盐如磷酸和磷酸铵; 2）弱无机酸/盐（如硼酸，硼酸铵）或弱羧酸/盐; 3）水; 和4）质子溶剂或两种或更多种质子溶剂的混合物。 弱单羧酸/盐具有2至7个碳原子，弱二羧酸/多羧酸/盐具有3至13个碳原子。 本发明的电解质具有高的阳极氧化击穿电压能力，并且形成的电介质氧化物具有改善的氧化物质量，包括良好的氧化物水合抗性能，并且导致更稳定的电容器性能。 这些特性对于诸如植入式心律转复除颤器（ICD）等关键应用尤其重要。 重要的是，这意味着需要更少的电容来满足ICD的工作电压。

    High performance single mode waveguide
    9.
    再颁专利
    High performance single mode waveguide 有权
    高性能单模波导

    公开(公告)号：USRE39028E1

    公开(公告)日：2006-03-21

    申请号：US10086222

    申请日：2002-02-27

    申请人： Ming-Jun Li ,  Yanming Liu ,  Daiping Ma ,  David Kinney Smith

    发明人： Ming-Jun Li ,  Yanming Liu ,  Daiping Ma ,  David Kinney Smith

    IPC分类号： G02B6/02

    摘要： Disclosed is a single made optical waveguide fiber having a segmented core design. In particular, the core comprises three segments, each having characteristic dimensions and refractive index profile. By proper choice of index profile in each segment, a waveguide fiber is made which has a mode field diameter of about 9.5, low, positive total dispersion over the operating window 1530 nm to 1565 nm as well as effective area greater than 60 μm2.

    摘要翻译： 公开了具有分段芯设计的单制光纤。 特别地，芯包括三个段，每个段具有特征尺寸和折射率分布。 通过适当地选择每个片段中的折射率分布，制造了一种波导光纤，其具有在操作窗口1530nm至1565nm以及大于60μm的有效面积的大约9.5的模场直径，低的正的总色散。 > 2 。

    Wdm layer-based optical chanel protecting device and method thereof
    10.
    发明申请
    Wdm layer-based optical chanel protecting device and method thereof 有权
    基于Wdm层的光学保护装置及其方法

    公开(公告)号：US20060056842A1

    公开(公告)日：2006-03-16

    申请号：US10519319

    申请日：2003-05-29

    申请人： Weishi Li ,  Youdao Xue ,  Dianjun Xiao ,  Yanming Liu ,  Wenbin Luo ,  Shiyin Zhang

    发明人： Weishi Li ,  Youdao Xue ,  Dianjun Xiao ,  Yanming Liu ,  Wenbin Luo ,  Shiyin Zhang

    IPC分类号： H04B10/08 ,  H04B17/00

    CPC分类号： H04J14/0295 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0279 ,  H04J14/0294

    摘要： The present invention discloses a WDM layer-based OChP device and the method thereof, i.e., M protection channels are added in the transmitting module and the receiving module to connect to receiving ends and transmitting ends of M protection channels in the WDM system; a switching device is added so as to switch signals in specified working channels to specified protection channels or switch signals transmitted in specified protection channels back to specified working channels according to switching requests from the WDM system; wherein M and N are natural numbers, and M 1, this solution can significantly reduce the risk of ruined backup performance due to above failures, without requiring increased cost.

    摘要翻译： 本发明公开了一种基于WDM层的OChP设备及其方法，即在发送模块和接收模块中添加M个保护信道，以连接到WDM系统中M个保护信道的接收端和发送端; 添加切换装置，以根据来自WDM系统的切换请求将指定工作信道中的信号切换到指定保护信道或在指定保护信道中发送的交换信号返回到指定的工作信道; 其中M和N是自然数，M 1时，该解决方案可以显着降低由于上述故障而造成的备份性能损失的风险，无需增加成本。