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11. 发明授权

US08089619B2 Process for manufacturing a microstructured optical fibre and method and system for on-line control of a microstructured optical fibre 有权
标题翻译：微结构光纤的制造方法以及微结构光纤的在线控制的方法和系统
公开(公告)号：US08089619B2
公开(公告)日：2012-01-03
申请号：US12226908
申请日：2008-09-19
申请人： Franco Cocchini , Antonio Collaro , Antonio Adigrat , Antonio Faraldi , Francesco Di Matteo , Paolo Russo
发明人： Franco Cocchini , Antonio Collaro , Antonio Adigrat , Antonio Faraldi , Francesco Di Matteo , Paolo Russo
IPC分类号： G01N21/00
CPC分类号： C03B37/0253 , C03B37/02781 , C03B37/032 , C03B2203/14 , C03B2203/42 , C03B2205/40 , C03B2205/44 , C03B2205/72 , C03B2205/91
摘要： A manufacturing process of a microstructured optical fiber including a void-containing region, includes the steps of: drawing a microstructured optical fiber along a longitudinal direction from a heated preform, wherein the optical fiber is continuously advanced along the longitudinal direction; directing a radiation beam at a longitudinal position in the longitudinal direction of the optical fiber so as to produce an interference pattern; detecting the interference pattern and producing at least one electrical detection signal corresponding to the interference pattern and including a plurality of signal fringe cycles; feeding the first detection signal into a first counter circuit; determining a first number of interference fringe increments in the plurality of signal wave fringe cycles of the at least one detection signal by using the first counter circuit; determining the outer diameter of the optical fiber, and controlling the microstructure of the optical fiber during advancement of the optical fiber. The step of controlling includes at least one step selected from: (a) controlling the first number of interference fringe increments within a reference number range of reference numbers of interference fringe increments, and (b) calculating a microstructure length value.
摘要翻译：包括含空隙区域的微结构光纤的制造方法包括以下步骤：从加热的预成型件沿长度方向拉伸微结构化的光纤，其中，所述光纤沿长度方向连续前进; 引导辐射束在光纤的纵向方向上的纵向位置，以产生干涉图案; 检测所述干扰图案并产生对应于所述干涉图案的至少一个电检测信号，并且包括多个信号条纹周期; 将第一检测信号馈送到第一计数器电路; 通过使用所述第一计数器电路确定所述至少一个检测信号的所述多个信号波缘周期中的第一数目的干涉条纹增量; 确定光纤的外径，并且在光纤的前进过程中控制光纤的微结构。控制步骤包括从以下各项中选择的至少一个步骤：（a）控制干涉条纹增量的参考数目的参考数字范围内的干涉条纹增量的第一数量，以及（b）计算微结构长度值。

12. 发明授权

US07946133B2 Methods for modifying ovality of optical fiber preforms 有权
标题翻译：修改光纤预制棒椭圆度的方法
公开(公告)号：US07946133B2
公开(公告)日：2011-05-24
申请号：US12945133
申请日：2010-11-12
申请人： James William Fleming , Siu-Ping Hong , Paul Francis Glodis , Thomas John Miller , Zhi Zhou , David Kalish , Shunhe Xiong
发明人： James William Fleming , Siu-Ping Hong , Paul Francis Glodis , Thomas John Miller , Zhi Zhou , David Kalish , Shunhe Xiong
IPC分类号： C03B37/012
CPC分类号： C03B37/01225 , C03B37/01228 , C03B37/01861 , C03B37/027 , C03B37/02745 , C03B2203/36 , C03B2205/40 , C03B2205/72
摘要： Methods for modifying preform core ovality during and subsequent to the formation of an optical fiber preform. After MCVD deposition forms the core rod, but prior to overcladding of the core rod, the code rod may be etched to change its ovality. In order to etch the core rod, the core rod may be mounted to lathe, rotated by at least two rotors, and subjected to a heat source. Additionally, one of the at least two rotors may be phase-shifted from another one of the at least two rotors after the core rod is mounted on the lathe.
摘要翻译：在形成光纤预制件期间和之后修改预成型坯椭圆度的方法。在MCVD沉积后形成芯棒，但是在芯棒的外包层之前，可以蚀刻编码棒以改变其椭圆度。为了蚀刻芯棒，芯棒可以安装到车床上，旋转至少两个转子，并经受热源。此外，在将芯棒安装在车床上之后，至少两个转子中的一个可以从至少两个转子中的另一个转向相移。

13. 发明授权

US07849713B2 Optical fibre having low splice loss and method for making it 有权
标题翻译：具有低接头损耗的光纤及其制造方法
公开(公告)号：US07849713B2
公开(公告)日：2010-12-14
申请号：US10538899
申请日：2002-12-24
申请人： Antonio Collaro , Giuseppe Ferri , Alfonso Pannullo
发明人： Antonio Collaro , Giuseppe Ferri , Alfonso Pannullo
IPC分类号： C03B37/023 , C03B37/07
CPC分类号： G02B6/02271 , C03B37/0253 , C03B37/027 , C03B2203/22 , C03B2203/23 , C03B2203/29 , C03B2203/36 , C03B2205/40 , G02B6/02014 , G02B6/0228 , G02B6/03611 , G02B6/03644 , G02B6/03661 , G02B6/2551
摘要： A process for making a non-zero dispersion shifted optical fiber having low splice loss and low attenuation and to an optical fiber produced by this process. A reduction of the splice loss is observed with decreasing drawing tension. The optical fiber has a core region that includes three segments and an inner cladding segment, each having a maximum refractive index percent difference, Δdeltai %, i=0-3, the subscript i referring to a particular refractive index, the core segments being selected such that Δdelta0%>Δdelta2%>Δdelta1%≧0 and Δdelta2%>Δdelta3%≧0. Optical fibers exhibiting low splice loss were drawn at tensions not larger than 150 g, preferably not larger than 100 g.
摘要翻译：用于制造具有低接合损耗和低衰减的非零色散位移光纤以及由该工艺产生的光纤的工艺。随着拉伸张力的降低观察到剪切损失的减少。光纤具有芯区域，其包括三个区段和内包层区段，每个区段具有最大折射率百分比差异，Dgr; deltai％，i = 0-3，下标i表示特定折射率，核心段被选择为使得＆Dgr; delta0％>＆Dgr; delta2％>＆Dgr; delta1％≥0和＆Dgr; delta2％>＆Dgr; delta3％≥0。在不大于150g，优选不大于100g的拉伸下拉伸显示出低接头损耗的光纤。

14. 发明申请

US20070125127A1 METHODS FOR MODIFYING OVALITY OF OPTICAL FIBER PREFORMS 审中-公开
标题翻译：用于修改光纤预制光栅的方法
公开(公告)号：US20070125127A1
公开(公告)日：2007-06-07
申请号：US11672836
申请日：2007-02-08
申请人： James Fleming , Siu-Ping Hong , Paul Glodis , Thomas Miller , Zhi Zhou , David Kalish , Shunhe Xiong
发明人： James Fleming , Siu-Ping Hong , Paul Glodis , Thomas Miller , Zhi Zhou , David Kalish , Shunhe Xiong
IPC分类号： C03B37/07 , C03B37/018 , C03B37/01
CPC分类号： C03B37/01225 , C03B37/01228 , C03B37/01861 , C03B37/027 , C03B37/02745 , C03B2203/36 , C03B2205/40 , C03B2205/72
摘要： Methods for modifying preform core ovality during and subsequent to the formation of an optical fiber preform. After MCVD deposition forms the core rod, but prior to overcladding of the core rod, the code rod may be etched to change its ovality. In order to etch the core rod, the core rod may be mounted to lathe, rotated by at least two rotors, and subjected to a heat source. Additionally, one of the at least two rotors may be phase-shifted from another one of the at least two rotors after the core rod is mounted on the lathe.
摘要翻译：在形成光纤预制件期间和之后修改预成型坯椭圆度的方法。在MCVD沉积后形成芯棒，但是在芯棒的外包层之前，可以蚀刻编码棒以改变其椭圆度。为了蚀刻芯棒，芯棒可以安装到车床上，旋转至少两个转子，并经受热源。此外，在将芯棒安装在车床上之后，至少两个转子中的一个可以从至少两个转子中的另一个转向相移。

15. 发明授权

US07145646B2 On-line tension measurement in an optical fiber 有权
标题翻译：光纤中的在线张力测量
公开(公告)号：US07145646B2
公开(公告)日：2006-12-05
申请号：US10499809
申请日：2001-12-27
申请人： Paolo Martinelli , Franco Trespidi
发明人： Paolo Martinelli , Franco Trespidi
IPC分类号： G01N21/00
CPC分类号： G01M11/37 , C03B37/0253 , C03B2205/40 , G01L1/242 , G01L5/105
摘要： A process of contactless monitoring the tension in an optical fiber and a tension meter which enables contactliess measurement of the tension in a bare and in a coated optical fiber. By measuring the retardation induced by the birefringence of an optical fiber by means of a polarized light beam incident to the fiber at an angle between about 10° and 25° to the detection optical axis, it is possible to accurately measure tensions over a wide range, i.e., from less than about 10 g to about 450 g. The method enables monitoring the tension during the ramp-up of the drawing process and is particularly advantageous for the control of the drawing tension in manufacturing of NZD, multimode or special fibers. Accurate monitoring of the tension both on a bare and on a coated fiber can also be achieved.
摘要翻译：一种无接触地监测光纤中的张力和张力计的过程，其能够在裸机和涂覆的光纤中进行无缝测量张力。通过以与检测光轴成约10°至25°的角度入射到光纤的偏振光束测量由光纤的双折射引起的延迟，可以精确地测量宽范围内的张力，即小于约10g至约450g。该方法能够在拉拔过程中监测张力，并且对于控制NZD，多模或特殊纤维制造过程中的拉伸张力特别有利。也可以在裸露的和涂覆的纤维上精确地监测张力。

16. 发明授权

US06826341B2 Systems and methods for reducing splice loss in optical fibers 有权
公开(公告)号：US06826341B2
公开(公告)日：2004-11-30
申请号：US10287307
申请日：2002-11-04
申请人： David John DiGiovanni , Peter Mikal Holmblad , Torben E. Veng , Andrew D. Yablon
发明人： David John DiGiovanni , Peter Mikal Holmblad , Torben E. Veng , Andrew D. Yablon
IPC分类号： G02B602
CPC分类号： G02B6/03644 , C03B37/01413 , C03B37/01807 , C03B37/027 , C03B2201/10 , C03B2201/28 , C03B2203/22 , C03B2203/222 , C03B2203/36 , C03B2205/40 , G02B6/03666 , G02B6/03694 , G02B6/2551
摘要： Optical fibers are described that exhibit reduced splice loss. Further described are techniques for fabricating optical fibers exhibiting reduced splice loss. One described fiber includes a plurality of regions, one region having a higher viscosity and the other region having a lower viscosity, such that when the fiber is drawn under tension, a strain is frozen into the higher viscosity region. A lower viscosity buffer layer is sandwiched between the higher viscosity region and the lower viscosity region. The buffer layer isolates the lower viscosity region from changes in refractive index in the higher viscosity region arising from a change in the strain frozen into the higher viscosity region.

17. 发明授权

US06768849B2 Systems and methods for fabricating varying waveguide optical fiber device 有权
标题翻译：制造不同波导光纤器件的系统和方法
公开(公告)号：US06768849B2
公开(公告)日：2004-07-27
申请号：US10190134
申请日：2002-07-03
申请人： David John DiGiovanni , Andrew D. Yablon , Man Fei Yan
发明人： David John DiGiovanni , Andrew D. Yablon , Man Fei Yan
IPC分类号： G02B602
CPC分类号： G02B6/02123 , C03B37/027 , C03B37/15 , C03B2201/02 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2203/222 , C03B2205/40 , G02B6/02 , G02B6/02071 , G02B6/2551 , G02B6/2552
摘要： Systems and methods are described for fabricating a varying-waveguide optical fiber. In one described method, a preform is fabricated having a core and at least one cladding region. The cladding region has a higher viscosity and the core region has a lower viscosity. The relative viscosities of the cladding region and core are chosen such that, when tension is applied to an optical fiber drawn from the preform, the applied tension is primarily borne by the cladding region thereby causing a viscoelastic strain to be frozen into the cladding region, while creating a minimal viscoelastic strain in the core. The method further includes drawing the preform into an optical fiber under an applied tension, such that a viscoelastic strain is frozen into the cladding region the frozen-in viscoelastic strain decreasing the cladding region refractive index. The cladding region refractive index is changed in a section of the optical fiber by heating the section so as to relax the viscoelastic strain frozen into the cladding region in the section of fiber, thereby increasing the cladding region refractive index in the section of fiber.
摘要翻译：描述了制造变波导光纤的系统和方法。在一种所描述的方法中，制造具有芯和至少一个包层区的预成型件。包层区域具有较高的粘度，并且核心区域具有较低的粘度。选择包层区域和芯体的相对粘度，使得当对从预成型体拉出的光纤施加张力时，施加的张力主要由包层区域承担，从而使粘弹性应变冻结在包层区域中，同时在核心中产生最小的粘弹性应变。该方法还包括在施加的张力下将预型件拉伸成光纤，使得粘弹性应变被冻结到包层区域中，使冷冻的粘弹性应变降低包层区折射率。通过加热该部分使包层区折射率变化，使得在纤维截面中冻结到包层区域的粘弹性应变松弛，从而增加纤维截面中的包层区折射率。

18. 发明申请

US20040025541A1 Method and apparatus of making optical fiber 审中-公开
标题翻译：制造光纤的方法和装置
公开(公告)号：US20040025541A1
公开(公告)日：2004-02-12
申请号：US10439296
申请日：2003-05-16
发明人： Toru Yamada , Masaharu Oe
IPC分类号： C03B037/07
CPC分类号： C03C25/106 , C03B37/0253 , C03B37/032 , C03B2205/40 , C03B2205/42 , C03B2205/44 , C03B2205/72 , Y02P40/57
摘要： In method of making an optical fiber and an apparatus, an optical fiber coated with UV curable resin is drawn at a drawing speed of 1000 m/min or more so that the optical fiber 5 has predetermined coating diameter from 235 nullm to 265 nullm. A transit time from an exit of a UV curing furnace to an entrance portion of a capstan for pulling the optical fiber downstream is set to be 0.5 seconds or more.
摘要翻译：在制造光纤的方法和装置中，以1000m /分钟以上的拉伸速度拉伸涂布有UV固化树脂的光纤，使得光纤5的预定涂布直径为235μm〜265μm。从UV固化炉的出口到用于将光纤下游拉动的绞盘的入口部分的运送时间设定为0.5秒以上。

19. 发明申请

US20030232200A1 Multilayered optical structures 失效
标题翻译：多层光学结构
公开(公告)号：US20030232200A1
公开(公告)日：2003-12-18
申请号：US10420343
申请日：2003-04-22
发明人： Michael A. Bryan , Xiangxin Bi
IPC分类号： B32B009/04
CPC分类号： G02B6/12002 , B32B9/04 , C03B19/1415 , C03B19/1423 , C03B19/1484 , C03B37/01413 , C03B37/0142 , C03B37/01486 , C03B37/027 , C03B2203/34 , C03B2205/40 , C03B2207/02 , C03B2207/34 , C03B2207/66 , C03B2207/85 , C04B35/14 , C04B2235/3201 , C04B2235/3203 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3234 , C04B2235/3244 , C04B2235/3251 , C04B2235/3258 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3296 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/3463 , C23C16/483 , C23C26/00 , G02B6/02042 , G02B6/13 , G02B6/132 , G02B2006/12147 , G02B2006/1215 , G02B2006/12176 , Y02P40/57
摘要： Monolithic optical structures include a plurality of layer with each layer having an isolated optical pathway confined within a portion of the layer. The monolithic optical structure can be used as an optical fiber preform. Alternatively or additionally, the monolithic optical structure can include integrated optical circuits within one or more layers of the structure. Monolithic optical structures can be formed by performing multiple passes of a substrate through a flowing particle stream. The deposited particles form an optical material following consolidation. Flexible optical fibers include a plurality of independent light channels extending along the length of the optical fiber. The fibers can be pulled from an appropriate preform.
摘要翻译：单片光学结构包括多个层，每个层具有限定在层的一部分内的隔离的光学路径。单片光学结构可以用作光纤预制件。或者或另外，单片光学结构可以包括在该结构的一个或多个层内的集成光学电路。单片光学结构可以通过通过流动的颗粒流进行多次通过基板来形成。沉积的颗粒在固结后形成光学材料。柔性光纤包括沿着光纤的长度延伸的多个独立的光通道。纤维可以从适当的预成型件拉出。

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