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1. 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。

2. 发明授权

US06922514B2 Optical fiber having low non-linearity for WDM transmission 有权
标题翻译：用于WDM传输的具有低非线性的光纤
公开(公告)号：US06922514B2
公开(公告)日：2005-07-26
申请号：US10342882
申请日：2003-01-14
申请人： Bartolomeo Italo Tirloni , Francesco Gabriele Sartori , Davide Sarchi , Giacomo Stefano Roba
发明人： Bartolomeo Italo Tirloni , Francesco Gabriele Sartori , Davide Sarchi , Giacomo Stefano Roba
IPC分类号： G02B6/02
CPC分类号： G02B6/03644 , G02B6/02009 , G02B6/02219 , G02B6/03694
摘要： An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
摘要翻译：光传输光纤具有折射率分布，在纤芯的内芯处的折射率增加的区域，从内芯径向向外设置的折射率超过内芯的折射率的环形区域，以及在在内芯和环形区域之间的横截面区域中的至少一个低掺杂剂含量区域。低损耗包层围绕核心区域。具有这种分段磁芯轮廓的光传输光纤提供高有效面积，低非线性系数，非零色散和相对平坦的色散斜率。

3. 发明授权

US07409126B2 Optical fiber having a low polarization mode dispersion and process and apparatus for producing it 失效
标题翻译：具有低偏振模色散的光纤及其制造方法和装置
公开(公告)号：US07409126B2
公开(公告)日：2008-08-05
申请号：US10528836
申请日：2003-09-22
申请人： Giacomo Stefano Roba , Davide Sarchi , Martino Travagnin , Alexis Debut
发明人： Giacomo Stefano Roba , Davide Sarchi , Martino Travagnin , Alexis Debut
IPC分类号： G02B6/44
CPC分类号： B65H49/02 , C03B37/02745 , C03B37/032 , C03B37/12 , C03B2203/19 , C03B2203/20 , C03B2203/36 , C03B2205/06 , G02B6/02285
摘要： An apparatus for producing a low-PMD optical fiber having a furnace for melting a lower portion of an optical preform; a traction device for pulling an optical fiber from the lower portion of an optical preform; a spinning device for imparting a substantially constant and unidirectional spin to the optical fiber as it is pulled, which causes the fiber to undergo an elastic torsion; a winding device for winding the optical fiber onto a reel; and a twisting device for imparting to the spun optical fiber a unidirectional twist in a direction opposite the elastic torsion, so as to control the residual twist in the optical fiber. A process for producing the fiber, an optical fiber and a cable are also provided.
摘要翻译：一种用于生产具有用于熔化光学预型件的下部的炉的低PMD光纤的设备; 用于从光学预型件的下部拉动光纤的牵引装置; 旋转装置，用于在被拉动时使光纤基本上恒定且单向旋转，这导致纤维经受弹性扭转; 用于将光纤缠绕到卷轴上的卷绕装置; 以及用于使纺丝光纤沿与弹性扭转相反的方向赋予单向捻度的扭转装置，以便控制光纤中的残余扭曲。还提供了用于生产纤维，光纤和电缆的方法。

4. 发明授权

US06321016B1 Optical fiber having low non-linearity for WDM transmission 有权
标题翻译：用于WDM传输的具有低非线性的光纤
公开(公告)号：US06321016B1
公开(公告)日：2001-11-20
申请号：US09335509
申请日：1999-06-18
申请人： Bartolomeo Italo Tirloni , Francesco Sartori , Davide Sarchi , Giacomo Stefano Roba
发明人： Bartolomeo Italo Tirloni , Francesco Sartori , Davide Sarchi , Giacomo Stefano Roba
IPC分类号： G02B602
CPC分类号： G02B6/03644 , G02B6/02009 , G02B6/02219 , G02B6/03694
摘要： An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
摘要翻译：光传输光纤具有折射率分布，在纤芯的内芯处的折射率增加的区域，从内芯径向向外设置的折射率超过内芯的折射率的环形区域，以及在在内芯和环形区域之间的横截面区域中的至少一个低掺杂剂含量区域。低损耗包层围绕核心区域。具有这种分段磁芯轮廓的光传输光纤提供高有效面积，低非线性系数，非零色散和相对平坦的色散斜率。

5. 发明授权

US06577800B2 Optical fiber for metropolitan and access network systems 有权
标题翻译：用于大都市和接入网络系统的光纤
公开(公告)号：US06577800B2
公开(公告)日：2003-06-10
申请号：US09881109
申请日：2001-06-15
申请人： Davide Sarchi , Giacomo Stefano Roba
发明人： Davide Sarchi , Giacomo Stefano Roba
IPC分类号： G02B616
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 wavelengths and positive at the other wavelength, with an absolute value of between about 5 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 &mgr;m2. 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).
摘要翻译：公开了一种用于大都市或接入网络的光传输光纤。传输线包括在大约1310nm的第一工作波长和约1550nm的第二工作波长下是单模的光纤。光纤的色散在第一和第二波长中的一个处是负的，在另一个波长处是正的，绝对值在约5psps / nm / km之间。该光纤还具有位于第一和第二工作波长之间的零色散波长，以及在大约1550nm的波长的有效面积大于约60mum2。电缆光纤具有小于约1300nm的截止波长。通过减少诸如四波混频（FWM）的非线性效应，该光纤允许在两个频带（1310nm和1550nm）中的波分复用（WDM）操作。

6. 发明授权

US06507689B2 Optical fiber having low non-linearity for WDM transmission 有权
公开(公告)号：US06507689B2
公开(公告)日：2003-01-14
申请号：US09984170
申请日：2001-10-29
申请人： Bartolomeo Italo Tirloni , Francesco Gabriele Sartori , Davide Sarchi , Giacomo Stefano Roba
发明人： Bartolomeo Italo Tirloni , Francesco Gabriele Sartori , Davide Sarchi , Giacomo Stefano Roba
IPC分类号： G02B602
CPC分类号： G02B6/03644 , G02B6/02009 , G02B6/02219 , G02B6/03694
摘要： An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.

7. 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。

8. 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。

9. 发明授权

US09372069B2 Method for measuring the length of an electric cable that uses an optical fibre element as a sensor 有权
标题翻译：测量使用光纤元件作为传感器的电缆长度的方法
公开(公告)号：US09372069B2
公开(公告)日：2016-06-21
申请号：US13989956
申请日：2010-11-29
申请人： Bernd Knuepfer , Davide Sarchi
发明人： Bernd Knuepfer , Davide Sarchi
IPC分类号： G01B11/06 , G02B6/44 , G01L1/24 , G01N3/22 , G01V3/00 , H04B10/00 , G01R31/28 , G01B11/02 , G01D5/353
CPC分类号： G01B11/02 , G01B11/028 , G01D5/35358 , G02B6/4401
摘要： A method of measuring the length of an electric cable, includes providing an electric cable having a cable length and including a cable neutral axis, and a fiber unit longitudinally extending along the cable and including an optical fiber arranged substantially along the neutral axis, wherein the optical fiber is mechanically coupled with the cable; injecting an optical signal into the optical fiber; detecting back-scattered light from the optical fiber responsive to the injected optical signal; analyzing the detected back-scattered light as a function of time so as to determine the length of the optical fiber, and deriving the cable length from the length of the optical fiber.
摘要翻译：一种测量电缆长度的方法包括提供具有电缆长度并包括电缆中性轴线的电缆，以及沿电缆纵向延伸并包括基本上沿着中性轴布置的光纤的光纤单元，其中，光纤与电缆机械耦合; 将光信号注入光纤; 响应于注入的光信号，从光纤检测反向散射光; 分析检测到的反向散射光作为时间的函数，以便确定光纤的长度，并从光纤的长度导出电缆长度。

10. 发明授权

US08665676B2 Acoustic radiating membrane for a music box or striking watch 有权
标题翻译：用于音乐盒或醒目手表的声辐射膜
公开(公告)号：US08665676B2
公开(公告)日：2014-03-04
申请号：US13285542
申请日：2011-10-31
申请人： Davide Sarchi , Jerome Favre , Nakis Karapatis
发明人： Davide Sarchi , Jerome Favre , Nakis Karapatis
IPC分类号： G04B21/00
CPC分类号： G04B37/0075 , G10K13/00
摘要： The acoustic radiating membrane (1) is for assembly in a music box or a striking watch. The membrane is made with at least one area of asymmetrical shape, formed in the material of the membrane or with at least one area of asymmetrical shape having a different thickness from the general thickness of the membrane. It preferably includes two asymmetrical areas of elliptical shape (2, 3) which are partly superposed and have a different thickness from each other. The two ellipses (2, 3), preferably hollowed out of the membrane, are off-centre in relation to each other.
摘要翻译：声辐射膜（1）用于组装在音乐盒或醒目的手表中。该薄膜制成具有不对称形状的至少一个区域，形成在膜的材料中或具有与膜的一般厚度不同厚度的不对称形状的至少一个区域。它优选地包括椭圆形（2,3）的两个不对称区域，它们被部分重叠并且具有彼此不同的厚度。优选从隔膜中挖出的两个椭圆形（2,3）彼此偏心。

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