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1. 发明授权

US06477305B1 Low water peak optical waveguide and method of manufacturing same 有权
标题翻译：低水峰光波导及其制造方法
公开(公告)号：US06477305B1
公开(公告)日：2002-11-05
申请号：US09547598
申请日：2000-04-11
申请人： George E. Berkey , Dana C. Bookbinder , Richard M. Fiacco , Cynthia B. Giroux , Daniel W. Hawtof , Dale R. Powers , V. Srikant
发明人： George E. Berkey , Dana C. Bookbinder , Richard M. Fiacco , Cynthia B. Giroux , Daniel W. Hawtof , Dale R. Powers , V. Srikant
IPC分类号： G02B602
CPC分类号： C03B37/01486 , C03B37/0124 , C03B37/01446 , C03B37/01473 , C03B2201/04 , C03B2201/075 , C03B2201/22 , C03B2201/31 , C03C3/06 , C03C13/047 , C03C2201/22 , C03C2203/54 , G02B6/02
摘要： A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.
摘要翻译：公开了一种具有低含水率中心线区域的圆柱形玻璃体及其制造用于制造光波导纤维的圆柱形玻璃体的方法。圆柱形玻璃体的中心线区域的水含量足够低，使得由本发明的圆柱形玻璃体制成的光波导纤维的光衰减小于约0.35dB / km，优选小于约0.31dB / km，测量波长为1380 nm。还公开了用于制造这种圆柱形玻璃体的低含水量塞子，具有低水峰的光波导纤维和包含这种光波导纤维的光纤通信系统。

2. 发明授权

US06597848B1 Dispersion compensating fiber 失效
标题翻译：色散补偿光纤
公开(公告)号：US06597848B1
公开(公告)日：2003-07-22
申请号：US09558649
申请日：2000-04-26
申请人： George E. Berkey , Lei Jiang , Dale R. Powers , V. Srikant
发明人： George E. Berkey , Lei Jiang , Dale R. Powers , V. Srikant
IPC分类号： G02B618
CPC分类号： G02B6/03688 , C03B37/01413 , C03B37/01446 , C03B2201/12 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2203/26 , C03B2203/36 , C03B2207/36 , G02B6/02261 , G02B6/03677
摘要： Disclosed is a dispersion compensating optical fiber that includes a core surrounded by a cladding layer of refractive index nCL. The core includes at least three radially adjacent regions, a central core region, a moat region having a refractive index nM that is sufficiently lower than nCL such that &Dgr;M≦−0.4%, and a ring region. As the ring region exhibits sufficiently high refractive index at a sufficiently long distance from the outer edge of the moat region, the fiber can exhibit low values of negative dispersion slope at low values of negative dispersion and yet exhibit good bending loss. This ring region is also capable of imparting to the fiber a relatively high cutoff wavelength, so that the present invention is particularly well suited for use in L-band systems. A particularly suitable fiber has an index profile in which that part of the ring region at the transition between the moat and the ring region has a refractive index such that its delta value is close to zero. Also disclosed is a method of forming the fiber of the present invention.
摘要翻译：公开了一种色散补偿光纤，其包括由折射率nCL的包覆层包围的芯。芯包括至少三个径向相邻的区域，中心芯区域，具有足够低于nCL的折射率nM的护城河区域，使得DELTAM <= -0.4％，以及环形区域。由于环形区域在距离护城河区域的外边缘足够长的距离处呈现足够高的折射率，所以在低分散负值下，纤维可以表现出低的负色散斜率值，并表现出良好的弯曲损耗。该环形区域还能够赋予纤维相当高的截止波长，使得本发明特别适用于L波段系统。特别合适的纤维具有折射率分布，其中在护环和环区之间的转变处的环区的那部分具有折射率使得其δ值接近于零。还公开了形成本发明的纤维的方法。

3. 发明授权

US06705127B1 Methods of manufacturing soot for optical fiber preforms and preforms made by the methods 失效
标题翻译：通过这些方法制造的光纤预制棒和预成型件的烟灰的制造方法
公开(公告)号：US06705127B1
公开(公告)日：2004-03-16
申请号：US09787064
申请日：2001-03-12
申请人： Michael B. Cain , Daniel W. Hawtof , V. Srikant
发明人： Michael B. Cain , Daniel W. Hawtof , V. Srikant
IPC分类号： C03B37018
CPC分类号： C03B37/01413 , C03B37/0142 , C03B2201/30 , C03B2201/32 , C03B2201/34 , C03B2201/36 , C03B2201/40 , C03B2201/50 , C03B2201/54 , C03B2207/32 , C03B2207/34 , C03B2207/52
摘要： The present invention is directed to methods of producing soot used in the manufacture of optical waveguides. Both non-aqueous liquid reactants and aqueous solutions containing one or more salts are delivered through an atomizing burner assembly to form a homogenous soot stream containing the oxides of the selected elements contained within the non-aqueous liquid reactant and the aqueous solution. The resulting multi-component soot is collected by conventional methods to form preforms used in the manufacture of optical waveguide fibers. Preforms formed by the methods are also disclosed.
摘要翻译：本发明涉及生产用于制造光波导的烟灰的方法。非水性液体反应物和含有一种或多种盐的水溶液通过雾化燃烧器组件输送以形成含有非水液体反应物和水溶液中所含选定元素的氧化物的均匀烟灰流。通过常规方法收集所得的多组分烟灰，以形成用于制造光波导纤维的预成型件。还公开了通过该方法形成的预成型件。

4. 发明授权

US06396986B1 Method of making optical fibers 失效
标题翻译：制造光纤的方法
公开(公告)号：US06396986B1
公开(公告)日：2002-05-28
申请号：US09295657
申请日：1999-04-21
申请人： George E. Berkey , V. Srikant
发明人： George E. Berkey , V. Srikant
IPC分类号： G02B616
CPC分类号： G02B6/02009 , C03B37/0253 , C03B37/027 , C03B37/02736 , C03B2203/06 , C03B2203/18 , C03B2203/24 , C03B2203/36 , C03B2205/40 , G02B6/02242 , G02B6/02247 , G02B6/0286 , G02B6/03611 , G02B6/03644
摘要： An optical fiber and method of making, wherein the optical fiber alternates between regions having different diameters along its length, wherein the refractive index of said blank and the diameters of said fiber are chosen to result in a fiber having alternating regions of positive and negative dispersion at a wavelength which is greater than 1480 nm, yet preferably has a low net dispersion and dispersion slope. A preferred such profile consists of a core region surrounded by a cladding region, said core region comprised of an central core region which is updoped with respect to said cladding region, said central core region surrounded by a moat region which is downdoped with respect to said cladding region, and said moat region is surrounded by an annular ring region which is updoped with respect to said cladding region. In addition, a family of profiles is presented which may be used to produce very low dispersion slope fibers. When used in conjunction with alternating positive and negative dispersion regions, lower net dispersion slope can be achieved. Alternatively, the family of profiles is useful in conventional WDM applications.
摘要翻译：一种光纤和制造方法，其中所述光纤沿着其长度在具有不同直径的区域之间交替，其中所述坯料的折射率和所述光纤的直径被选择以产生具有正和负分散的交替区域的光纤在大于1480nm的波长下，优选具有低的净色散和色散斜率。优选的这种轮廓由包围区域包围的芯区域组成，所述芯区域由相对于所述包层区域上升的中心芯区域组成，所述中心芯区域由相对于所述包层区域下凹的护城河区域围绕包围区域，并且所述护环区域被相对于所述包层区域上升的环形环区域围绕。此外，还提供了一系列轮廓，其可用于产生非常低的色散斜率纤维。当与交替的正和负色散区域结合使用时，可以实现较低的净色散斜率。或者，轮廓系列在常规WDM应用中是有用的。

5. 发明授权

US06701052B2 Dispersion slope compensating optical waveguide fiber 有权
标题翻译：色散斜率补偿光波导光纤
公开(公告)号：US06701052B2
公开(公告)日：2004-03-02
申请号：US09822168
申请日：2001-03-30
申请人： George E. Berkey , Scott R. Bickham , Michael B. Cain , Pamela A. Hajcak , Upendra H. Manyam , Snigdharaj K. Mishra , V. Srikant
发明人： George E. Berkey , Scott R. Bickham , Michael B. Cain , Pamela A. Hajcak , Upendra H. Manyam , Snigdharaj K. Mishra , V. Srikant
IPC分类号： G02B602
CPC分类号： G02B6/02004 , G02B6/02261 , G02B6/0228 , G02B6/0286 , G02B6/03677 , G02B6/03688
摘要： Disclosed is a dispersion compensating and dispersion slope compensating single mode optical waveguide fiber. The refractive index profiles of waveguide fibers in accord with the invention are disclosed and described. These index profiles provide a waveguide fiber having negative total dispersion and negative total dispersion slope so that a standard waveguide fiber is compensated over an extended wavelength range. A telecommunications link using the fiber in accord with the invention is also disclosed and described. A standard fiber to compensating fiber length ratio in the range of 1:1 to 3:1 is shown to give optimum link performance with respect to limiting non-linear dispersion effects.
摘要翻译：公开了一种色散补偿和色散斜率补偿单模光纤。公开和描述了符合本发明的波导纤维的折射率分布。这些折射率分布提供了具有负总色散和负总色散斜率的波导光纤，使得标准波导光纤在扩展的波长范围内被补偿。还公开并描述了使用根据本发明的光纤的电信链路。示出了在1：1至3：1的范围内补偿光纤长度比的标准光纤在限制非线性色散效应方面给出最佳的链路性能。

6. 发明授权

US06829422B2 Dispersion slope compensating optical waveguide fiber 失效
公开(公告)号：US06829422B2
公开(公告)日：2004-12-07
申请号：US10354317
申请日：2003-01-30
申请人： George E. Berkey , Scott R. Bickham , Michael B. Cain , Pamela A. Hajcak , Upendra H. Manyam , Snigdharaj K. Mishra , V. Srikant
发明人： George E. Berkey , Scott R. Bickham , Michael B. Cain , Pamela A. Hajcak , Upendra H. Manyam , Snigdharaj K. Mishra , V. Srikant
IPC分类号： G02B602
CPC分类号： G02B6/02004 , G02B6/02261 , G02B6/0228 , G02B6/0286 , G02B6/03677 , G02B6/03688
摘要： Disclosed is a dispersion compensating and dispersion slope compensating single mode optical waveguide fiber. The refractive index profiles of waveguide fibers in accord with the invention are disclosed and described. These index profiles provide a waveguide fiber having negative total dispersion and negative total dispersion slope so that a standard waveguide fiber is compensated over an extended wavelength range. A telecommunications link using the fiber in accord with the invention is also disclosed and described. A standard fiber to compensating fiber length ratio in the range of 1:1 to 3:1 is shown to give optimum link performance with respect to limiting non-linear dispersion effects.

7. 发明授权

US06606438B2 Low dispersion slope fiber 失效
公开(公告)号：US06606438B2
公开(公告)日：2003-08-12
申请号：US10027899
申请日：2001-12-19
申请人： George E. Berkey , V. Srikant
发明人： George E. Berkey , V. Srikant
IPC分类号： G02B602
CPC分类号： G02B6/02009 , C03B37/0253 , C03B37/027 , C03B37/02736 , C03B2203/06 , C03B2203/18 , C03B2203/24 , C03B2203/36 , C03B2205/40 , G02B6/02242 , G02B6/02247 , G02B6/0286 , G02B6/03611 , G02B6/03644
摘要： An optical fiber and method of making, wherein the optical fiber alternates between regions having different diameters along its length, wherein the refractive index of said blank and the diameters of said fiber are chosen to result in a fiber having alternating regions of positive and negative dispersion at a wavelength which is greater than 1480 nm, yet preferably has a low net dispersion and dispersion slope. A preferred such profile consists of a core region surrounded by a cladding region, said core region comprised of an central core region which is updoped with respect to said cladding region, said central core region surrounded by a moat region which is downdoped with respect to said cladding region, and said moat region is surrounded by an annular ring region which is updoped with respect to said cladding region. In addition, a family of profiles is presented which may be used to produce very low dispersion slope fibers. When used in conjunction with alternating positive and negative dispersion regions, lower net dispersion slope can be achieved. Alternatively, the family of profiles is useful in conventional WDM applications.

8. 发明授权

US06233387B1 Broadband pulse-reshaping optical fiber 有权
标题翻译：宽带脉冲整形光纤
公开(公告)号：US06233387B1
公开(公告)日：2001-05-15
申请号：US09436017
申请日：1999-11-09
申请人： George E. Berkey , Alan F. Evans , V. Srikant
发明人： George E. Berkey , Alan F. Evans , V. Srikant
IPC分类号： G02B602
CPC分类号： G02B6/02028 , G02B6/02009 , G02B6/02242 , G02B6/02271 , G02B6/0286 , G02B6/03627 , G02B6/03644 , G02B6/03666 , G02B6/29377
摘要： A pulse-reshaping optical fiber having a core with refractive index nc surrounded by a cladding layer, the diameter of the core changing monotonically along the length of the fiber. The core includes a central region having a maximum refractive index n1 and a moat region disposed radially adjacent to the central region. The moat region has a minimum refractive index n2 which is sufficiently low that the index delta &Dgr;2 of the moat region with respect to nc is not greater than −0.1%. The moat region affects the change in dispersion with respect to fiber cladding diameter, as well as providing the pulse-reshaping fiber with low dispersion versus wavelength slope. The pulse-reshaping fiber is particularly useful in association with optical transmission systems where high transmission rates and narrow pulse widths are desired, including components such as high pulse rate wavelength-division-multiplexers (WDMs) and optical regenerators.
摘要翻译：具有折射率为nc的芯的脉冲整形光纤被包层围绕，芯的直径沿光纤的长度单调变化。芯包括具有最大折射率n1的中心区域和径向相邻于中心区域设置的护城河区域。护城河区域具有足够低的最小折射率n2，使得护城河区域的相对于nc的折射率ΔDELTA2不大于-0.1％。护环区域影响相对于纤维包层直径的色散变化，以及提供具有低色散对波长斜率的脉冲整形光纤。脉冲整形光纤特别适用于需要高传输速率和窄脉冲宽度的光传输系统，包括诸如高脉冲率波分复用器（WDM）和光学再生器的组件。

9. 发明授权

US06650814B2 Single mode dispersion compensating optical fiber 失效
公开(公告)号：US06650814B2
公开(公告)日：2003-11-18
申请号：US10014781
申请日：2001-12-11
申请人： Julie E. Caplen , Jean-Philippe J. deSandro , Keith L. House , Ming-Jun Li , Daniel A. Nolan , V. Srikant
发明人： Julie E. Caplen , Jean-Philippe J. deSandro , Keith L. House , Ming-Jun Li , Daniel A. Nolan , V. Srikant
IPC分类号： G02B622
CPC分类号： G02B6/02261 , G02B6/0228 , G02B6/03611 , G02B6/03644 , H04B10/2525
摘要： A single mode dispersion and dispersion slope compensating optical fiber includes a central core segment, a depressed moat segment, an annular ring segment, and a cladding layer. Each of the segments of the fiber have a relative refractive index that are selected to provide negative dispersion at a wavelength of within the range of about 1530 nm to about 1620 nm, negative dispersion slope at a wavelength of within the range of about 1530 nm to about 1620 nm, a kappa value of within the range of 40 to about 60 at a wavelength of about 1550 nm, and a fiber cut-off wavelength of less than about 1650 nm, and more preferably less than 1550 nm.

10. 发明授权

US07039269B2 Optical transmission line and optical transmission system utilizing same 失效
标题翻译：光传输线路和利用光传输系统的光传输系统
公开(公告)号：US07039269B2
公开(公告)日：2006-05-02
申请号：US10113448
申请日：2002-03-28
申请人： V. Srikant , Sergey Y. Ten , Jan Conradi
发明人： V. Srikant , Sergey Y. Ten , Jan Conradi
IPC分类号： G02B6/28
CPC分类号： H04B10/25253
摘要： An optical signal transmission line includes a first fiber adapted to guide an optical signal therethrough and having a first κ, a second fiber adapted to guide the optical signal therethrough and having a second κ of less than or equal to about 100 nm at a wavelength of 1550 nm, and a κ compensating fiber adapted to guide the optical signal therethrough and having a third κ of greater than or equal to about 60 nm at a wavelength of 1550 nm. The first fiber, the second fiber and the κ compensating fiber are in optical communication, thereby defining an optical transmission line having a total dispersion and a total dispersion slope. The first κ, the second κ and the third κ cooperate such that the total dispersion is within the range of about 1.0 ps/nm-km≧total dispersion≧about −1.0 ps/nm-km at a wavelength of 1550 nm, and the total dispersion slope is within the range of about 0.02 ps/nm2-km≧total dispersion slope≧about −0.02 ps/nm2-km at a wavelength of 1550 nm.
摘要翻译：光信号传输线包括第一光纤，其适于引导光信号通过其中并具有第一卡尔，第二光纤适于通过其引导光信号，并具有小于或等于约100nm的第二卡波长 1550nm，以及适于引导光信号通过其中并具有大于或等于约60nm的第三κ波长的kappa补偿光纤，波长为1550nm。第一光纤，第二光纤和κ补偿光纤是光通信的，由此限定具有总色散和总色散斜率的光传输线。第一个kappa，第二个kappa和第三个kappa协调使总色散在波长1550 nm处的约1.0 ps / nm-km> =总色散> =约-1.0 ps / nm-km的范围内，并且总色散斜率在大约0.02ps / nm 2 -km> =总色散斜率> = -0.02ps / nm 2 -km的范围内在a 波长1550nm。

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