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1. 发明申请

WO2008037291A1 BUFFERED OPTICAL FIBRE AND METHOD FOR IMPROVING THE LIFETIME THEREOF 审中-公开
标题翻译：缓冲光纤和改善其寿命的方法
公开(公告)号：WO2008037291A1
公开(公告)日：2008-04-03
申请号：PCT/EP2006/066693
申请日：2006-09-25
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.r.l. , DEBUT, Alexis , SARCHI, Davide , CONSONNI, Enrico , TRAVAGNIN, Martino
发明人： DEBUT, Alexis , SARCHI, Davide , CONSONNI, Enrico , TRAVAGNIN, Martino
IPC分类号： C03C25/10
CPC分类号： C03C25/106 , C03C25/47 , G02B6/02395 , G02B6/4402
摘要： A buffered optical fibre comprising an optical waveguide, at least one exterior coating (2) surrounding said optical waveguide (1) and a buffer coating (4) surrounding said at least one exterior coating (2, 3), wherein the said buffer coating is a tight buffer coating made of a material having a density of at least 1.2 Kg/dm3, a thermal conductivity of at least 0.4 W/m.K and comprising a polymeric matrix and an inorganic filler.
摘要翻译：一种缓冲光纤，包括光波导，围绕所述光波导（1）的至少一个外部涂层（2）和围绕所述至少一个外部涂层（2,3）的缓冲涂层（4），其中所述缓冲涂层由密度为至少1.2Kg / dm 3的材料制成的紧密缓冲涂层，至少0.4W / mK的热导率并且包含聚合物基质和无机填料。

2. 发明申请

WO2008061568A1 METHOD AND SYSTEM FOR FIBER-OPTIC MONITORING OF SPATIALLY DISTRIBUTED COMPONENTS 审中-公开
标题翻译：空间分布组件光纤监测方法与系统
公开(公告)号：WO2008061568A1
公开(公告)日：2008-05-29
申请号：PCT/EP2006/068899
申请日：2006-11-24
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. , SARCHI, Davide , GASPARI, Roberto , COLETTA, Giacomo , VILLANI, Giovanni
发明人： SARCHI, Davide , GASPARI, Roberto , COLETTA, Giacomo , VILLANI, Giovanni
IPC分类号： H04M11/04
CPC分类号： H02J13/0065 , G01D5/35358
摘要： A system for monitoring ancillary elements (205a,205b,...,205k) of an electric power distribution network (100), comprising: an optical fiber path (215); associated with the ancillary elements to be monitored, respective optical branches branching from the optical fiber path, wherein each optical branch comprises at least one passive optical attenuator (235a,235b,...,235k) operatively coupled to, and having an attenuation adapted to change in response to a change in operating conditions of the respective ancillary element, and an optical reflector (240a,240b,...,240k); an optical radiation source (230) adapted to inject an optical radiation (I) into the optical fiber path; and an optical receiver (250,310) adapted to detect back-reflected optical radiation (IaJb,...,Ik) reflected by the optical reflector; the monitoring system is further adapted to recognize a position of the at least one of the ancillary elements based on a characteristic of the back-reflected optical radiation.
摘要翻译：一种用于监测配电网络（100）的辅助元件（205a，205b，...，205k）的系统，包括：光纤路径（215）; 与待监视的辅助元件相关联，分别从光纤路径分支的相应的光分支，其中每个光学分支包括至少一个可操作地耦合到衰减器并具有衰减的无源光衰减器（235a，235b，...，235k）响应于各个辅助元件的操作条件的改变而改变，以及光学反射器（240a，240b，...，240k）; 适于将光辐射（I）注入光纤路径的光辐射源（230）; 以及适于检测由所述光反射器反射的反射光辐射（IaJb，...，Ik）的光接收器（250,310）。监视系统还适于基于反射的光辐射的特性来识别至少一个辅助元件的位置。

3. 发明申请

WO2007147440A1 METHOD OF MAKING A LOW PMD OPTICAL FIBER 审中-公开
标题翻译：制造低PMD光纤的方法
公开(公告)号：WO2007147440A1
公开(公告)日：2007-12-27
申请号：PCT/EP2006/063454
申请日：2006-06-22
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.r.l. , SARCHI, Davide , FERRARIO, Maddalena
发明人： SARCHI, Davide , FERRARIO, Maddalena
IPC分类号： G02B6/10 , C03B37/02 , C03B37/03 , C03B37/027
CPC分类号： C03B37/02745 , C03B2203/06 , C03B2203/19 , C03B2203/36 , C03B2205/06 , G02B6/02285
摘要： A method of making an optical fiber, method comprising the steps of: providing an optical fiber preform; heating an end portion of the optical fiber preform so as to obtain a softened preform end portion; drawing the softened preform end portion to form the optical fiber; applying to the optical fiber a substantially sinusoidal spin having a spin amplitude and a spin period, the substantially sinusoidal spin being transmitted to the softened preform end portion, and determining an actual spin amplitude applied to the fiber, wherein the actual spin amplitude is the spin amplitude applied in correspondence of said softened preform end portion. The spin amplitude and spin period of the substantially sinusoidal spin are selected in such a way that a ratio of the actual spin amplitude to the spin period is in the range from approximately 0.8 to approximately 1.4 turns/m 2 .
摘要翻译：一种制造光纤的方法，包括以下步骤：提供光纤预制棒; 加热光纤预制棒的端部以获得软化的预成型件端部; 绘制软化的预成型件端部以形成光纤; 向光纤施加具有自旋振幅和自旋周期的基本上正弦的自旋，基本上正弦的旋转传递到软化的预制件端部，并且确定施加到光纤的实际自旋振幅，其中实际的自旋振幅是旋转对应于所述软化的预成型件端部施加的振幅。选择基本上正弦波自旋的自旋振幅和自旋周期，使得实际自旋振幅与自旋周期的比值在约0.8至约1.4匝/ m 2范围内，。

4. 发明申请

WO2007073754A1 METHOD AND APPARATUS FOR THE PRODUCTION OF OPTICAL FIBERS WITH REDUCED POLARIZATION MODE DISPERSION 审中-公开
标题翻译：用于生产具有降低极化模式分散度的光纤的方法和装置
公开(公告)号：WO2007073754A1
公开(公告)日：2007-07-05
申请号：PCT/EP2005/013998
申请日：2005-12-23
申请人： PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. , PATA, Roberto , ROBA, Giacomo, Stefano , SARCHI, Davide , TEDESCHI, Marco
发明人： PATA, Roberto , ROBA, Giacomo, Stefano , SARCHI, Davide , TEDESCHI, Marco
IPC分类号： C03B37/03 , C03B37/027
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 comprising 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 comprises 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 said winding arc and from said pulling force; axially displacing said spin roller such that the fiber is caused to roll over the spin roller surface by said friction force.
摘要翻译：一种用于制造光纤的方法和装置，包括以下步骤和/或手段：通过对纤维施加拉力从加热的预成型件拉伸纤维; 在拉伸时纺丝纤维，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，从而在纤维和纺丝辊之间产生摩擦力，所述摩擦力由所述绕组电弧和拉力; 轴向移动所述纺丝辊，使得纤维通过所述摩擦力在所述纺丝辊表面上滚动。

5. 发明授权

EP1141754B1 OPTICAL FIBER FOR METROPOLITAN AND ACCESS NETWORK SYSTEMS 有权
标题翻译：光纤，用于INNERSTÄDTISCHE-与接入网系统
公开(公告)号：EP1141754B1
公开(公告)日：2008-09-03
申请号：EP99967943.4
申请日：1999-12-15
申请人： Prysmian Cavi e Sistemi Energia S.r.l.
发明人： SARCHI, Davide , ROBA, Giacomo, Stefano
IPC分类号： G02B6/02
CPC分类号： G02B6/02014 , G02B6/02223 , G02B6/02238 , G02B6/02271 , G02B6/0285 , G02B6/03605 , G02B6/03611 , G02B6/03622 , G02B6/03644 , G02B6/29377
摘要： An optical transmission fiber for use in a metropolitan or access network is disclosed. The transmission line includes a fiber being single mode at a first operating wavelength of around 1310 nm and a second operating wavelength of around 1550 nm. The dispersion of the fiber is negative at one of the first and second operating wavelengths and positive at the other of the first and second operating wavelengths, with an absolute value of between about 5 ps/nm/km and 15 ps/nm/km. The fiber also has a zero dispersion wavelength that is located between the first and second operating wavelengths, and an effective area at a wavelength around 1550 nm greater than about 60 νm2. The cabled fiber has a cutoff wavelength less than about 1300 nm. The fiber allows wavelength division multiplexing (WDM) operation in both the bands (1310 nm and 1550 nm) by reducing nonlinear effects such as four-wave mixing (FWM).

6. 发明公开

EP1963233A1 METHOD AND APPARATUS FOR THE PRODUCTION OF OPTICAL FIBERS WITH REDUCED POLARIZATION MODE DISPERSION 有权
标题翻译：方法和设备生产具有减少的偏振模色散光纤
公开(公告)号：EP1963233A1
公开(公告)日：2008-09-03
申请号：EP05822617.6
申请日：2005-12-23
申请人： Prysmian Cavi e Sistemi Energia S.r.l.
发明人： PATA, Roberto , ROBA, Giacomo, Stefano , SARCHI, Davide , TEDESCHI, Marco
IPC分类号： C03B37/03 , C03B37/027
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 comprising 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 comprises 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 said winding arc and from said pulling force; axially displacing said spin roller such that the fiber is caused to roll over the spin roller surface by said friction force.

7. 发明授权

EP1525169B1 APPARATUS AND METHOD FOR MEASURING THE WEIGHT OF AN OPTICAL FIBER PREFORM DURING A CHEMICAL DEPOSITION PROCESS FOR FORMING THE PREFORM 有权
标题翻译：的装置和方法，用于测定重量的光纤预制件在化学沉积
公开(公告)号：EP1525169B1
公开(公告)日：2006-09-13
申请号：EP02765139.7
申请日：2002-07-31
申请人： Prysmian Cavi e Sistemi Energia S.r.l.
发明人： RUZZIER, Marco , DEMERGAZZI, Andrea , SARCHI, Davide
IPC分类号： C03B37/018 , G01G3/16
CPC分类号： G01G3/16 , C03B37/01486
摘要： An apparatus (10) for measuring the weight of a preform for optical fibres during a chemical deposition process for the formation of a preform is herein described. The apparatus comprises at least one elastic constraint (11a, 11b) associated with at least one end portion (100a, 100b) of an elongated element (100) constituting a chemical deposition substrate for the formation of the preform, a device (110) for inducing an oscillation, for example axial, on said elongated element (100), a device (111) for detecting the frequency of oscillation of said elongated element (100) and a device (112) for calculating the weight of the preform according to the detected frequency of oscillation. Advantageously, the device of the invention allows the realisation of a method for measuring the weight of the preform wherein the errors in measurement caused by thermal drift effects, by the axial distribution of the masses on the preform and by loads which are different to the mass of the preform in formation are reduced to below the required precision in measurement. _________________________

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