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1. 发明申请

US20100294000A1 Process for manufacturing an optical fiber with a time-stable hydroxyl content 审中-公开
标题翻译：具有时间稳定羟基含量的光纤的制造方法
公开(公告)号：US20100294000A1
公开(公告)日：2010-11-25
申请号：US12308660
申请日：2006-07-03
申请人： Paolo Tognini , Marco Ruzzier , Roberto Pata
发明人： Paolo Tognini , Marco Ruzzier , Roberto Pata
IPC分类号： C03B37/07 , C03C25/64 , C03C25/60
CPC分类号： C03C25/64
摘要： The hydroxyl content in an optical fiber is stabilized by a manufacturing process involving exposure of the optical fiber to a mixture of deuterium and a predetermined amount of hydrogen.
摘要翻译：光纤中的羟基含量通过包括将光纤暴露于氘和预定量的氢的混合物的制造工艺来稳定。

2. 发明授权

US08322164B2 Process for producing a low polarization mode dispersion optical fiber 失效
标题翻译：低偏振模色散光纤的制造方法
公开(公告)号：US08322164B2
公开(公告)日：2012-12-04
申请号：US10568686
申请日：2003-08-29
申请人： Davide Sarchi , Sabrina Fogliani , Roberto Pata
发明人： Davide Sarchi , Sabrina Fogliani , Roberto Pata
IPC分类号： C03B37/025
CPC分类号： G02B6/02285 , C03B37/02745 , C03B37/032 , C03B2203/19 , C03B2203/36 , C03B2205/06
摘要： In a process for producing a low polarization mode dispersion optical fiber, which comprises the steps of drawing a glass preform into an optical fiber and of spinning, during drawing, the optical fiber about an optical fiber axis, the spinning is imparted according to a bidirectional and substantially trapezoidal spin function, which includes zones (P) of substantially constant amplitude (plateau) and zones of transition (T) where inversion of the spin direction takes place, wherein the extension (p) of the zones of substantially constant amplitude is greater than the extension (t) of the zones of transition, and the number of inversions of the direction of spin in a length of fiber of 20 m is at most two.
摘要翻译：在制造低分散模式色散光纤的方法中，包括以下步骤：在拉丝期间将玻璃预成型件拉制成光纤并在拉丝期间围绕光纤轴线旋转光纤，根据双向并且具有基本上梯形的自旋函数，其包括基本上恒定振幅（平台）的区域（P）和转移区域（T），其中发生自旋方向的反转，其中基本恒定幅度的区域的延伸部分（p）较大比转移区域的延伸部分（t）长，并且光纤长度为20μm的旋转方向的反转次数为2个以下。

3. 发明授权

US06595454B2 Optical fiber tensioning device and method of controlling the tension applied to an optical fiber 有权
标题翻译：光纤张紧装置和控制施加在光纤上的张力的方法
公开(公告)号：US06595454B2
公开(公告)日：2003-07-22
申请号：US09748854
申请日：2000-12-28
申请人： Giacomo Stefano Roba , Roberto Pata , Franco Veronelli
发明人： Giacomo Stefano Roba , Roberto Pata , Franco Veronelli
IPC分类号： B65H5938
CPC分类号： B65H59/385 , B65H2701/32 , C03B37/032 , C03B37/12 , G02B6/4457
摘要： An optical fibre tensioning device, receiving at its input an optical fibre from a traction device and capable of supplying the optical fibre from its output to a device for storing the fibre. The tensioning device comprises at least one fixed pulley on which the optical fibre is wound for a first length, and at least one movable pulley on which the optical fibre is wound for a second length. A device for measuring the tension applied to the fibre and a motorized device for moving the movable pulley interact with each other to control a distance (Dp) between axes of the pulleys in such a way as to automatically keep the tension applied to the fibre essentially constant.
摘要翻译：一种光纤张紧装置，在其输入端处接收来自牵引装置的光纤并且能够将光纤从其输出提供给用于存储光纤的装置。张紧装置包括至少一个固定皮带轮，光纤在其上缠绕第一长度;以及至少一个可动皮带轮，光纤在其上缠绕第二长度。用于测量施加到纤维的张力的装置和用于移动可动皮带轮的电动装置相互作用以控制滑轮轴线之间的距离（Dp），以便自动保持施加在纤维上的张力基本上不变。

4. 发明申请

US20090205374A1 Method and Apparatus for the Production of Optical Fibers With Reduced Polarization Mode Dispersion 审中-公开
标题翻译：用于生产具有减少极化模式色散的光纤的方法和装置
公开(公告)号：US20090205374A1
公开(公告)日：2009-08-20
申请号：US12086689
申请日：2005-12-23
申请人： Roberto Pata , Giacomo Stefano Roba , Davide Sarchi , Marco Tedeschi
发明人： Roberto Pata , Giacomo Stefano Roba , Davide Sarchi , Marco Tedeschi
IPC分类号： C03B37/02
CPC分类号： C03B37/032 , C03B37/02745 , C03B2203/19 , C03B2203/36 , C03B2205/06
摘要： A method and apparatus for manufacturing an optical fiber includes the steps and/or means of: drawing a fiber from a heated preform by applying a pulling force to the fiber; spinning the fiber while it is drawn, wherein the step of spinning the fiber includes the sub-steps of winding the fiber on a spin roller by a winding arc, such that a friction force is generated between the fiber and the spin roller resulting from the winding arc and from the pulling force; axially displacing the spin roller such that the fiber is caused to roll over the spin roller surface by the friction force.
摘要翻译：用于制造光纤的方法和装置包括以下步骤和/或手段：通过向纤维施加拉力从加热的预成型件中拉伸纤维; 在拉伸纤维的同时旋转纤维，其中纺丝纤维的步骤包括通过缠绕弧将纤维缠绕在纺丝辊上的子步骤，使得在纤维和纺丝辊之间产生摩擦力，缠绕弧和拉力; 使旋转辊轴向移动，使得纤维通过摩擦力在纺丝辊表面上滚动。

5. 发明申请

US20080022725A1 Process for Producing a Low Polarization Mode Dispersion Optical Fiber 失效
标题翻译：制造低极化模式色散光纤的工艺
公开(公告)号：US20080022725A1
公开(公告)日：2008-01-31
申请号：US10568686
申请日：2003-08-29
申请人： Davide Sarchi , Sabrina Fogliani , Roberto Pata
发明人： Davide Sarchi , Sabrina Fogliani , Roberto Pata
IPC分类号： C03B37/025 , C03B37/027 , G02B6/10
CPC分类号： G02B6/02285 , C03B37/02745 , C03B37/032 , C03B2203/19 , C03B2203/36 , C03B2205/06
摘要： In a process for producing a low polarization mode dispersion optical fiber, which comprises the steps of drawing a glass preform into an optical fiber and of spinning, during drawing, the optical fiber about an optical fiber axis, the spinning is imparted according to a bidirectional and substantially trapezoidal spin function, which includes zones (P) of substantially constant amplitude (plateau) and zones of transition (T) where inversion of the spin direction takes place, wherein the extension (p) of the zones of substantially constant amplitude is greater than the extension (t) of the zones of transition, and the number of inversions of the direction of spin in a length of fiber of 20 m is at most two.
摘要翻译：在制造低分散模式色散光纤的方法中，包括以下步骤：在拉丝期间将玻璃预成型件拉制成光纤并在拉丝期间围绕光纤轴线旋转光纤，根据双向并且具有基本上梯形的自旋函数，其包括基本上恒定振幅（平台）的区域（P）和转移区域（T），其中发生自旋方向的反转，其中基本恒定幅度的区域的延伸部分（p）较大比转移区域的延伸部分（t）长，并且光纤长度为20μm的旋转方向的反转次数为2个以下。

6. 发明授权

US06715323B1 Method and apparatus for cooling optical fibers 有权
标题翻译：光纤冷却方法和装置
公开(公告)号：US06715323B1
公开(公告)日：2004-04-06
申请号：US09573702
申请日：2000-05-19
申请人： Giacomo Stefano Roba , Roberto Pata
发明人： Giacomo Stefano Roba , Roberto Pata
IPC分类号： C03B37023
CPC分类号： C03B37/02718 , C03B2205/55
摘要： The present invention relates to a method and apparatus for cooling an optical fiber during the drawing process of said fiber. In particular the present method for cooling an optical fiber comprises flowing a cooling gas onto the optical fiber wherein the flow direction of the cooling gas is substantially transversal with respect the longitudinal axis of the fiber. It has been found that by employing a flow of cooling gas being substantially transversal to the longitudinal axis of the drawn fiber, the cooling efficiency of the fiber may be substantially improved. The apparatus according to the invention comprises a hollow elongated body, said hollow elongated body having at least one wall defining an internal elongated space through which the drawn fiber passes wherein the at least one wall of said hollow elongated body is provided with at least one longitudinal opening through which a cooling gas is introduced into the hollow body and at least one longitudinal opening through which said cooling gas is removed from said hollow body.
摘要翻译：本发明涉及一种用于在所述光纤的拉丝过程中冷却光纤的方法和装置。特别地，本发明的用于冷却光纤的方法包括将冷却气体流到光纤上，其中冷却气体的流动方向为相对于纤维的纵轴基本上是横向的。已经发现，通过采用基本上横贯拉伸纤维的纵向轴线的冷却气体流，可以显着改善纤维的冷却效率。根据本发明包括中空细长体，所述中空细长体具有限定内部细长空间的至少一个壁，所述拉伸纤维通过该细长空间，其中所述中空细长体的至少一个壁设置有至少一个纵向开口，通过该纵向开口冷却气体被引入中空体和至少一个纵向开口从所述中空体中除去冷却气体。

7. 发明授权

US06550282B2 Method and apparatus for manufacturing an optical fiber from a preform 有权
标题翻译：从预制件制造光纤的方法和设备
公开(公告)号：US06550282B2
公开(公告)日：2003-04-22
申请号：US09741882
申请日：2000-12-22
申请人： Giacomo Stefano Roba , Roberto Pata
发明人： Giacomo Stefano Roba , Roberto Pata
IPC分类号： C03B37022
CPC分类号： C03C25/12 , C03B37/032 , C03B2203/36 , C03B2205/06 , C03B2205/42 , C03C25/005
摘要： A method for manufacturing an optical fiber (100) having low PMD, comprises the steps of: a) heating at least one end portion (3a) of a preform (3); b) drawing an optical fiber (100) from a free end of said heated end portion (3a) along a fiber drawing axis (I—I); c) coating said optical fiber (100) with a suitable coating material; d) applying to said coated optical fiber (100) a torque about said fiber drawing axis (I—I), e) winding said coated optical fiber (100) onto a collecting spool (9). According to the invention, step d) is carried out by means of a pulley (16) supported upstream of said collecting spool (9) and rotated about the fiber drawing axis (I—I), said optical fiber (100) being wound up onto said pulley (16) for an angle of at least about 360°. Advantageously, such method also allows to notably increase the amount of optical fiber produced per unit of time with respect to the prior art.
摘要翻译：一种制造具有低PMD的光纤（100）的方法，包括以下步骤：a）加热预成型件（3）的至少一个端部（3a）; b）从自由端拉出光纤（100）的所述加热端部（3a）沿着拉丝轴线（II）; c）用合适的涂层材料涂覆所述光纤（100）; d）向所述涂覆的光纤（100）施加围绕所述光纤拉伸轴线（II），e）将所述涂覆的光纤（100）卷绕到收集卷轴（9）上。根据本发明，步骤d）通过支撑在所述收集线轴（9）上游并绕光纤拉丝轴线（II）旋转的滑轮（16）进行，所述光纤（100）被卷绕到所述滑轮（16）至少约360°的角度。有利地，这种方法还允许相对于现有技术显着增加每单位时间产生的光纤的量。

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