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11. 发明申请

US20120159995A1 Methods of making single mode optical fibers with reduced bend sensitivity and catastrophic bend loss 有权
标题翻译：制造具有降低弯曲灵敏度和灾难性弯曲损耗的单模光纤的方法
公开(公告)号：US20120159995A1
公开(公告)日：2012-06-28
申请号：US13374205
申请日：2011-12-15
申请人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
发明人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
IPC分类号： C03B37/027 , C03B37/018
CPC分类号： C03B37/018 , C03B37/01211 , C03B37/01807 , C03B2201/12 , C03B2203/22 , C03B2203/23 , G02B6/02342 , G02B6/03672 , G02B6/03677 , G02B6/03683 , G02B6/03688 , G02B6/14 , Y02P40/57
摘要： An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.
摘要翻译：对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝弯曲半径为10mm。此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。外芯区域从纤维轴径向延伸小于9μm的距离。在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。台阶部分的折射率大于内部部分的折射率。在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。还描述了用于制造这种纤维的多管制造技术。

12. 发明授权

US07760978B2 Optical fiber configuration for dissipating stray light 有权
标题翻译：用于消散杂散光的光纤配置
公开(公告)号：US07760978B2
公开(公告)日：2010-07-20
申请号：US12231947
申请日：2008-09-08
申请人： David John DiGiovanni , Yoshihiro Emori , Michael Fishteyn , Clifford Headley
发明人： David John DiGiovanni , Yoshihiro Emori , Michael Fishteyn , Clifford Headley
IPC分类号： G02B6/02 , G02B6/26
CPC分类号： G02B6/2804 , G02B6/02395 , G02B6/0365
摘要： An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.
摘要翻译：光传输光纤被形成为包括设置在保护性聚合物外涂层下方的相对较低折射率的较薄的外包层。沿着纤维内的内包层传播的杂散光将被折射入薄的外包层（通过适当地选择折射率值）。外包层的薄的尺寸允许杂散光以受控的逐渐的方式“泄漏”到外涂层中，以便最小化与杂散光的存在相关联的涂层的加热。本发明的纤维也可以被弯曲以帮助杂散光移动到涂层中。

13. 发明授权

US06768847B2 Dispersion compensating module and fiber for control of residual dispersion 有权
标题翻译：色散补偿模块和光纤用于控制残留色散
公开(公告)号：US06768847B2
公开(公告)日：2004-07-27
申请号：US10098679
申请日：2002-03-15
申请人： David John DiGiovanni , William A. Reed , Man F. Yan , Lars Gruner-Nielsen , Susanne Dyrbol
发明人： David John DiGiovanni , William A. Reed , Man F. Yan , Lars Gruner-Nielsen , Susanne Dyrbol
IPC分类号： G02B626
CPC分类号： G02B6/02261 , G02B6/03611 , G02B6/03644 , G02B6/29376 , G02B6/29395
摘要： A dispersion compensating fiber and module are described for controlling residual dispersion in a dispersion compensated system. The dispersion compensating fiber is designed with dispersion curve having an inflection point at a wavelength near the optical transmission operating wavelength region. The dispersion curve, having an inflection point near the operating wavelength region, produces a relative dispersion slope that closely matches the relative dispersion slope of the transmission fiber over a relatively wide bandwidth surrounding the operating wavelength region.
摘要翻译：描述了用于控制色散补偿系统中的残余色散的色散补偿光纤和模块。色散补偿光纤被设计成具有在光传输工作波长区域附近的波长处具有拐点的色散曲线。具有靠近工作波长区域的拐点的色散曲线产生与围绕工作波长区域的相对宽的带宽上的传输光纤的相对色散斜率紧密匹配的相对色散斜率。

14. 发明授权

US06735985B2 Method of impressing a twist on a multimode fiber during drawing 有权
标题翻译：在拉丝过程中在多模光纤上施加扭曲的方法
公开(公告)号：US06735985B2
公开(公告)日：2004-05-18
申请号：US10027067
申请日：2001-12-20
申请人： David John DiGiovanni , Frank Vincent DiMarcello , XinLi Jiang , George E. Oulundsen , Sandeep Prabhakar Pandit
发明人： David John DiGiovanni , Frank Vincent DiMarcello , XinLi Jiang , George E. Oulundsen , Sandeep Prabhakar Pandit
IPC分类号： C03B37025
CPC分类号： G02B6/0288 , C03B37/02745 , C03B37/032 , C03B2203/19 , C03B2203/36 , C03B2205/06 , G02B6/02 , G02B6/02285 , G02B6/02395 , G02B6/03627
摘要： The specification describes a technique for drawing circular core multimode optical fiber using twist during draw to increase fiber bandwidth.
摘要翻译：本说明书描述了一种在绘制过程中使用扭曲来绘制圆形多模光纤的技术，以增加光纤带宽。

15. 发明授权

US06397636B1 Method of applying a precursor to an assembled fiber bundle and fusing the bundle together 有权
标题翻译：将前体施加到组装的纤维束并将束熔合在一起的方法
公开(公告)号：US06397636B1
公开(公告)日：2002-06-04
申请号：US09315631
申请日：1999-05-20
申请人： David John DiGiovanni , Mikhail Fishteyn
发明人： David John DiGiovanni , Mikhail Fishteyn
IPC分类号： C03B37028
CPC分类号： G02B6/2835 , G02B6/2856
摘要： Optical fiber bundles having high optical throughput can be produced with relatively high yield if gaps between fibers are eliminated by application of a particle-containing glass precursor material, exemplarily fumed silica in an aqueous medium. Manufacture of optical fiber bundles that comprise two or more fibers that each comprise a substantially planar surface (with the planar surfaces facing each other) is improved by application of a particle-free glass precursor material, e.g., partially hydrolysed tetramethyl orthosilicate, to the fiber bundle. After drying of the applied glass precursor material the fiber bundle is heated to fuse the fibers together.
摘要翻译：具有高光学通过量的光纤束可以通过施加含水玻璃前体材料（例如在水性介质中的热解二氧化硅）来消除纤维之间的间隙而以相对高的产率生产。通过将无颗粒玻璃前体材料（例如部分水解的原硅酸甲酯）施加到纤维上来改进包含两个或更多个纤维的光纤束的制造，每个纤维各自包括基本平坦的表面（平面彼此面对）束。在施加的玻璃前体材料干燥之后，加热纤维束以将纤维熔合在一起。

16. 发明授权

US5949941A Cladding-pumped fiber structures 失效
标题翻译：包层泵浦纤维结构
公开(公告)号：US5949941A
公开(公告)日：1999-09-07
申请号：US976003
申请日：1997-11-21
申请人： David John DiGiovanni
发明人： David John DiGiovanni
IPC分类号： G02B6/02 , G02B6/024 , G02B6/036 , G02B6/10 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/07
CPC分类号： G02B6/03622 , G02B6/02395 , G02B6/105 , H01S3/06708 , C03B2201/10 , C03B2201/12 , C03B2201/31 , C03B2201/34 , C03B2201/36 , C03B2203/12 , C03B2203/30 , G02B6/03638 , H01S3/06729 , H01S3/094003
摘要： A cladding-pumped fiber structure is disclosed in which mode mixing of pump light injected into the fiber is induced by index modulation. In one embodiment, the index modulation is created by a stress-inducing region disposed in the cladding which simultaneously maintains the polarization within the core to produce a polarization-maintaining fiber useful for multi-mode and laser applications.
摘要翻译：公开了一种包覆泵浦的纤维结构，其中通过折射率调制来引入注入光纤的泵浦光的模式混合。在一个实施例中，折射率调制由设置在包层中的应力诱导区域产生，其同时保持芯内的偏振，以产生用于多模和激光应用的偏振保持光纤。

17. 发明授权

US5731892A Article comprising hybrid optical fiber amplifier 失效
标题翻译：文章包括混合光纤放大器
公开(公告)号：US5731892A
公开(公告)日：1998-03-24
申请号：US847766
申请日：1997-04-22
申请人： David John DiGiovanni , Namkyoo Park , Kim Willard Womack , Paul Francis Wysocki
发明人： David John DiGiovanni , Namkyoo Park , Kim Willard Womack , Paul Francis Wysocki
IPC分类号： H01S3/07 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/16 , H01S3/23 , H01S3/13 , G02B6/00
CPC分类号： H01S3/06758 , H01S2301/04 , H01S3/1608 , H01S3/1618
摘要： Multistage Er-doped fiber amplifiers (EDFAs) are disclosed. They comprise a first stage that comprises Er and Al, and further comprise a second stage that comprises Er and a further rare earth element, exemplary Yb. Such multistage EDFAs can have advantageous characteristics e.g., a relatively wide flat gain region (e.g. 1544-1562 nm), and relatively high output power, without significant degradation of the noise figure. Exemplary, the amplifiers are used in WDM systems and in analog CATV systems.
摘要翻译：公开了多级掺铒光纤放大器（EDFA）。它们包括包含Er和Al的第一阶段，并且还包括包含Er的第二阶段和另外的稀土元素，示例性的Yb。这样的多级EDFA可以具有有利的特性，例如相对宽的平坦增益区域（例如1544-1562nm）和相对较高的输出功率，而不会使噪声系数显着降低。示例性地，放大器用于WDM系统和模拟CATV系统。

18. 发明申请

US20090290841A1 Reduced Bend Sensitivity and Catastrophic Bend Loss In Single Mode Optical Fibers and Method of Making Same 有权
标题翻译：降低弯曲灵敏度和单模光纤中的灾难性弯曲损耗及其制作方法
公开(公告)号：US20090290841A1
公开(公告)日：2009-11-26
申请号：US12472522
申请日：2009-05-27
申请人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
发明人： Peter Ingo Borel , David John DiGiovanni , John Michael Fini , Poul Kristensen
IPC分类号： G02B6/036
CPC分类号： C03B37/018 , C03B37/01211 , C03B37/01807 , C03B2201/12 , C03B2203/22 , C03B2203/23 , G02B6/02342 , G02B6/03672 , G02B6/03677 , G02B6/03683 , G02B6/03688 , G02B6/14 , Y02P40/57
摘要： An optical fiber that is relatively insensitive to bend loss and alleviates the problem of catastrophic bend loss comprises a core region and a cladding region configured to support and guide the propagation of light in a fundamental transverse mode. The cladding region includes (i) an outer cladding region, (ii) an annular pedestal (or ring) region, (iii) an annular inner trench region, and (iv) an annular outer trench region. The pedestal region and the outer cladding region each have a refractive index relatively close to that of the outer cladding region. In order to suppress HOMs the pedestal region is configured to resonantly couple at least one (unwanted) transverse mode of the core region (other than the fundamental mode) to at least one transverse mode of the pedestal region. In a preferred embodiment, the fiber is configured so that, at a signal wavelength of approximately 1550 nm, its bend loss is no more than about 0.1 dB/turn at bend radius of 5 mm and is no more than about 0.02 dB/turn at a bend radius of 10 mm. In addition, in one embodiment, the core region also includes an inner core region and an annular outer core (or shelf) region surrounding the inner core region. The outer core region extends radially a distance of less than 9 μm from the fiber axis. In another embodiment, the inner trench region includes an annular inner portion and an annular outer (or step) portion surrounding said inner portion. The refractive index of the step portion is greater than that of the inner portion. In a preferred embodiment, both of the foregoing features of the core region and the inner trench region are incorporated in the fiber. Also described are multi-tube fabrication techniques for making such fibers.
摘要翻译：对弯曲损耗相对不敏感并减轻灾难性弯曲损耗的问题的光纤包括芯区域和被配置为支撑和引导基本横向模式的光的传播的包层区域。包层区域包括（i）外包层区域，（ii）环形基座（或环）区域，（iii）环形内沟槽区域和（iv）环形外沟槽区域。基座区域和外部包层区域的折射率相对于外部包层区域的折射率相对接近。为了抑制HOM，基座区域被配置为将芯区域（基本模式除外）的至少一个（不需要的）横向模式谐振地耦合到基座区域的至少一个横向模式。在优选实施例中，光纤被配置为使得在大约1550nm的信号波长处，其弯曲半径在5mm处的弯曲损耗不超过约0.1dB /匝，并且在不超过约0.02dB /匝弯曲半径为10mm。此外，在一个实施例中，芯区域还包括内芯区域和围绕内芯区域的环形外芯（或搁架）区域。外芯区域从纤维轴径向延伸小于9μm的距离。在另一个实施例中，内沟槽区域包括环形内部部分和围绕所述内部部分的环形外（或台阶）部分。台阶部分的折射率大于内部部分的折射率。在一个优选实施例中，芯部区域和内部沟槽区域的前述特征都包含在纤维中。还描述了用于制造这种纤维的多管制造技术。

19. 发明申请

US20080267560A1 Mode-field resizing in optical fibers 审中-公开
标题翻译：光纤中的模场调整大小
公开(公告)号：US20080267560A1
公开(公告)日：2008-10-30
申请号：US11796892
申请日：2007-04-30
申请人： David John DiGiovanni , Clifford Everill Headley , Andrew Douglas Yablon
发明人： David John DiGiovanni , Clifford Everill Headley , Andrew Douglas Yablon
IPC分类号： G02B6/26
CPC分类号： G02B6/14 , G02B6/2856 , H01S3/06754
摘要： An all-fiber mode-field resizer comprises a first optical fiber configured to propagate signal light in a predetermined transverse mode along a longitudinal axis from a first input/output (I/O) port to a second I/O port. The first fiber is configured to have a first effective mode-field area and a first core V-parameter proximate the first I/O port and to have a second effective mode-field area and a second core V-parameter proximate the second I/O port. The second mode-field area is greater than the first mode-field area, and the second V-parameter is less than the first V-parameter. In one embodiment, the second V-parameter is less than approximately 1.3, and preferably less than 1.0. In another embodiment, the first V-parameter is greater than approximately 1.8. In yet another embodiment, our mode-field resizer is incorporated into a tapered fiber bundle.
摘要翻译：全光纤模场调幅器包括第一光纤，其被配置为沿着纵轴从第一输入/输出（I / O）端口传输到预定横向模式的信号光从第一输入/输出（I / O）端口传送到第二I / O端口。第一光纤被配置为具有靠近第一I / O端口的第一有效模场区域和第一核心V参数，并且具有靠近第二I / O端口的第二有效模场区域和第二核心V参数， O端口第二模场区域大于第一模场区域，第二V参数小于第一V参数。在一个实施例中，第二V参数小于约1.3，优选小于1.0。在另一个实施例中，第一V参数大于大约1.8。在另一个实施例中，我们的模场调整器被并入到锥形纤维束中。

20. 发明授权

US06785472B1 Broadband amplified WDM ring 失效
标题翻译：宽带放大WDM环
公开(公告)号：US06785472B1
公开(公告)日：2004-08-31
申请号：US09334047
申请日：1999-06-15
申请人： Laura Ellen Adams , Jon Anderson , Robert Mario Broberg , David John DiGiovanni , Karsten Rottwitt
发明人： Laura Ellen Adams , Jon Anderson , Robert Mario Broberg , David John DiGiovanni , Karsten Rottwitt
IPC分类号： H04J1402
CPC分类号： H04B10/27 , H04B10/2755 , H04B10/2916 , H04B10/2939 , H04J14/0206 , H04J14/0221
摘要： A fiber-optic WDM ring carries communication traffic among a plurality of nodes, each node associated with respective subscriber premises. Remote gain is provided in at least one link of the ring. In specific embodiments of the invention, the remote gain is applied preferentially to those wavelength channels most in need of amplification. In specific embodiments of the invention, the remote gain is Raman gain.
摘要翻译：光纤WDM环承载多个节点之间的通信业务，每个节点与相应的用户房屋相关联。在环的至少一个链路上提供远程增益。在本发明的具体实施例中，远程增益优先地应用于最需要放大的那些波长信道。在本发明的具体实施例中，远程增益是拉曼增益。

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