公开(公告)号：EP3218752A1

公开(公告)日：2017-09-20

申请号：EP15790762.7

申请日：2015-10-23

申请人： Panduit Corp.

发明人： PIMPINELLA, Richard J. ,  CASTRO, Jose M. ,  HUANG, Yu ,  KOSE, Bulent

IPC分类号： G02B6/38

CPC分类号： G06T7/0004 ,  G01M11/35 ,  G01M11/37 ,  G02B6/3801 ,  G02B6/3846 ,  G06T2207/30108 ,  H04N5/2256

摘要： At least some embodiments of the present invention relate to the field of optical fiber splicing and the evaluation of resulting splice joints. In an embodiment, the present invention is an apparatus for evaluating the integrity of a mechanical splice joint, and comprises a light source, digital video camera, digital signal processor, and visual indicator, wherein the apparatus connects to the test connector and the digital signal processor analyzes digital images of the scatter light from at least a portion of the test connector.

摘要翻译： 本发明的至少一些实施例涉及光纤拼接和所得拼接接头的评估领域。 在一个实施例中，本发明是用于评估机械拼接接头的完整性的设备，并且包括光源，数字摄像机，数字信号处理器和可视指示器，其中该设备连接到测试连接器和数字信号 处理器分析来自测试连接器的至少一部分的散射光的数字图像。

公开(公告)号：EP3177902A1

公开(公告)日：2017-06-14

申请号：EP14762123.9

申请日：2014-08-08

申请人： Heraeus Tenevo LLC

发明人： RASNIK, Ivan

IPC分类号： G01M11/00 ,  G01B11/12 ,  G01B11/24 ,  G01N21/41

CPC分类号： G01M11/37 ,  G01B11/08 ,  G01B11/24 ,  G01B11/25 ,  G01N21/412 ,  G06T7/60

摘要： Methods and apparatus for evaluating the geometric properties of optical fiber preforms, which methods include: providing an optical fiber preform having a longitudinal axis, an outer diameter and a circumference; providing a two-dimensional pattern having a length parallel to the longitudinal axis of the preform and a width greater than the outer diameter of the preform; providing an image capturing device disposed such that the preform is aligned between the pattern and the image capturing device; rotating the preform about its longitudinal axis and acquiring a first plurality of images of the pattern viewed through the preform at at least two different points along the circumference of the preform; and determining at least one geometric property of the preform from the first plurality of images.

摘要翻译： 方法和装置用于评价光纤预制棒，其中的方法包括的几何性质：提供光纤预制件的具有纵向轴线，在外径和周长; 提供具有平行于预型体和一个宽度比预成型件的外直径大的纵向轴线的长度的两维图案; 提供一种图像捕获装置弃置检查没预成型件的图案和图像捕捉装置之间的对齐; 绕其纵向轴线的预制件，并获取通过在沿所述预成型件的圆周的至少两个不同点处的预制件观察到的图案的图像的第一多个; 和从图像的第一多个预成型件的至少确定性采矿一个几何属性。

公开(公告)号：EP3072001A2

公开(公告)日：2016-09-28

申请号：EP14870646.8

申请日：2014-11-05

申请人： Corning Optical Communications LLC

发明人： BENJAMIN, Seldon David ,  BENNETT, Kevin Wallace ,  BUTLER, Douglas Llewellyn ,  HURLEY, William Carl

IPC分类号： G02B6/02 ,  C03B37/025 ,  G02B6/38 ,  G02B6/42 ,  G02B6/44

CPC分类号： G02B6/4482 ,  B29C47/00 ,  B29C47/02 ,  B29D11/00663 ,  B29D11/00721 ,  B29L2011/0075 ,  C03C25/1065 ,  C03C25/12 ,  G01M11/37 ,  G02B6/02042 ,  G02B6/02395 ,  G02B6/3831 ,  G02B6/3851 ,  G02B6/3885 ,  G02B6/4246 ,  G02B6/4249 ,  G02B6/4292 ,  G02B6/4403 ,  G02B6/448 ,  G02B6/4486 ,  H04B10/40

摘要： A multicore optical fiber with a reference section having a material defining a marked multicore glass optical fiber. The multicore fibers can be in groupings, for example, the groupings can be in the form of one of an optical fiber ribbon covered by a matrix, and a tight buffered cable. Fiber optic connectors can be assembled to the multicore optical fiber at either or both ends, and the colored portion can be associated with the optical fiber connector aligning the optical core elements with the optical connectors. The assembly can have at least one transceiver device with a transmit port and a receive port defining a two-way communication channel. Further aspects describe methods of manufacturing multicore fibers including application of curable coatings and reference sections.

公开(公告)号：EP1131599B1

公开(公告)日：2014-07-30

申请号：EP00920792.9

申请日：2000-04-07

申请人： Fardeau, Jean-François

发明人： Fardeau, Jean-François

IPC分类号： G01B11/10 ,  G01M11/00 ,  G01N21/88

CPC分类号： G01M11/37 ,  G01B11/105 ,  G01N21/952

公开(公告)号：EP1810000A1

公开(公告)日：2007-07-25

申请号：EP05813700.1

申请日：2005-11-11

申请人： CCS Technology, Inc.

发明人： CONTAG, Karsten

IPC分类号： G01M11/00 ,  G02B6/255

CPC分类号： G02B6/2551 ,  G01M11/37

摘要： Disclosed are a method and a device for connecting optical fibers, said method encompassing a step in which the eccentricity of the core relative to the cladding is determined. In a first step of the disclosed method, the optical fibers (11, 12) are heated for a limited period of time, whereby the cores of the glass fibers are excited so as to emit visible light. The position of the cores is determined by measuring an intensity distribution of the emitted light. A light (41, 42) is switched on in order to illuminate the optical fibers (11, 12) in a second step. The position of the claddings can be determined by measuring the intensity distribution of the light penetrating the optical fibers (11, 12). The eccentricity can be determined from a combination of the two measurements. The two optical fibers are aligned relative to each other in order to connect the same once the eccentricity has been determined.

公开(公告)号：EP1192491A1

公开(公告)日：2002-04-03

申请号：EP00954281.2

申请日：2000-06-16

申请人： SCC Special Communication Cables GmbH & Co. KG

发明人： ZAMZOW, Bert

IPC分类号： G02B6/255 ,  G01M11/00

CPC分类号： G01M11/37

摘要： The assessment of the quality of a splice provides high-precision results only when the dimensions of the light-conducting fiber core, i.e. the spatial distribution of the refractive index, said distribution determining the attenuation behavior, in the area of the splice, are used in the calculation of the attenuation. As a result, the dimensions of the splice are measured in a three-dimensional manner by optical systems (12, 14), and the spatial distribution of the refractive index on the splice is derived therefrom. The field distribution corresponding to a mode that is capable of propagating in the glass fiber is fixed within a first spatial region situated in front of the splice in the beam direction. In addition, the field distribution of this mode is determined within a second spatial region situated behind the splice in a beam direction while taking into consideration the spatial distribution of the refractive index on the splice, and the splice attenuation is calculated from the intensity values assigned to both field distributions.

公开(公告)号：EP1131599A1

公开(公告)日：2001-09-12

申请号：EP00920792.9

申请日：2000-04-07

申请人： FARDEAU, Jean-Francois

发明人： FARDEAU, Jean-Francois

IPC分类号： G01B11/10 ,  G01M11/00 ,  G01N21/88

CPC分类号： G01M11/37 ,  G01B11/105 ,  G01N21/952

摘要： The invention concerns a method and a design for an apparatus for high-speed and high precision absolute measurement of the diameter of transparent fibres and the control of internal and surface defects. Said invention uses a phenomenon of interferometry. It is based on the combination of a digital processing of the signal for the absolute measurement of the diameter of fibres and the detection of very small defects and a method of analog processing for fast high resolution measurement and real time detection of the defects. The apparatus comprises an optical assembly (4) projecting the interferometry signal on two linear sensors (6 and 7), each connected to a digital (8) and analog (9) signal processing card. The combination of digital and analog measurements enable to provide fast and absolute measurement of the diameter.

公开(公告)号：EP0819958A1

公开(公告)日：1998-01-21

申请号：EP97850115.3

申请日：1997-07-15

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Zheng, Wenxin

IPC分类号： G02B6/255

CPC分类号： G01M11/37 ,  G02B6/2551

摘要： In the determination of the angular rotational position of axial asymmetries of bodies like optical PM-fibers such a body or fiber is illuminated during rotations (201) thereof to different angular positions around its longitudinal axis. For different angular positions the difference is then determined between light, which has passed through the fiber end and in its position corresponds to the central part of the fiber, and light, which has passed through the fiber end and in its position corresponds to the region of the fiber located immediately outside the central part. These differences, considered as a function of the rotation angle, constitute a curve that is analyzed (205) for finding the regions thereof having the steepest descent or increase, such as a valley region. Only these regions are then used (207, 209) for determining the position of the optical asymmetries. Thus the fiber can be rotated (207) during only this interval determining the curve more accurately by using more densely spaced measurement points within the interval. Such a determination is particularly suited for PM-fibers having very small optical asymmetries such as fibers having an elliptical core.

摘要翻译： 在像光学PM-纤维体的轴向不对称的角度旋转位置的确定检查的身体或纤维被旋转（201）到其围绕其纵向轴线的不同角位置期间照亮。 对于不同的角位置的差然后确定性光，其具有通过纤维端部，并在其位置对应于所述纤维的中心部分，和光，其具有通过纤维端部，并在其位置通过传递之间开采对应于区域 的紧位于中央部的外侧的纤维。 这些差异，考虑作为旋转角度的函数，构成了曲线也被用于发现的区域及其具有最陡下降或上升，检查作为谷区域进行分析（205）。 然后仅将这些区域中使用（207，209），用于确定采矿光学不对称的位置。 因此，纤维可以在此间隔仅确定性采矿曲线更精确地由间隔内使用更密集间隔的测量点设定过程中旋转（207）。 这样的确定是特别适用于具有非常小的光纤不对称PM-纤维：诸如具有到椭圆芯。

公开(公告)号：EP0605297A1

公开(公告)日：1994-07-06

申请号：EP93403150.1

申请日：1993-12-23

申请人： FRANCE TELECOM

发明人： Nolf, Michel ,  Chollet, Patrick ,  Fossey, Paul

IPC分类号： G01N21/41 ,  G01M11/00

CPC分类号： G01M11/37 ,  G01N21/412

摘要： L'invention concerne un appareil de mesure de profil d'indice d'une préforme de fibre optique (1) comportant une enveloppe externe et un coeur.
Selon l'invention, entre un milieu déformable d'isotropie d'indice et la surface externe de l'enveloppe de la préforme (1), il est prévu une interface de séparation déformable et transparente (23) assurant l'adaptation du milieu déformable d'isotropie d'indice (22) à la surface externe de l'enveloppe de la préforme (1) sur au moins la zone annulaire (212) de celle-ci, qui correspond à une zone de mesure optique (212) située sur le parcours du faisceau optique (53), cette interface déformable et transparente (23), ainsi que les surfaces optiques d'entrée et de sortie (210,211) du faisceau optique (53), ayant un indice proche de l'indice dudit milieu (22).

摘要翻译： 本发明涉及一种用于测量光纤预制件（1）在哪个外部包层和芯包括折射率分布。 。根据本发明，可变形和透明剥离界面（23）与索引各向同性的可变形介质与预制件的包层的外表面之间提供（1）的接口匹配索引各向同性可变形介质（22），以 预制件的包层的外表面（1）在至少位于所述光束（53）的路径的其在光学测量区域（212）对应于所述环形设计区域（212），该可变形的，透明的接口（ 23），以及具有在指数接近所述介质（22）的索引中的光束（53）的进入和退出光学表面（210，211）。

公开(公告)号：EP0586964A1

公开(公告)日：1994-03-16

申请号：EP93113566.9

申请日：1993-08-25

申请人： ANDREW A.G.

发明人： Dyott, Richard B.

IPC分类号： G01M11/00 ,  G02B6/255 ,  G02B6/38

CPC分类号： G02B6/2555 ,  G01M11/37 ,  G02B6/2551

摘要： A method of locating the azimuthal positions of the transverse axes of an optical fiber (10) that has a cladding (17) and a core (16) with an elliptical cross section, where the elliptical cross section has a major axis and a minor axis and the optical fiber has a longitudinal axis. The present invention also provides a method of detecting the azimuthal position of an optical fiber from which an interference pattern generated by reflections from a coherent light beam directed onto the optical fiber in a direction transverse to the optical fiber's longitudinal axis changes symmetrically as the fiber is turned in opposite directions about its longitudinal axis. In addition, the invention provides a method to determine which axis of an optical fiber elliptical's core, the major axis or the minor axis, is orthogonally aligned with the coherent HeNe laser beam (12). Further, the invention provides a method of joining two optical fibers where the transverse axes of the fibers' elliptical cores are aligned with one another or are separated from one another at a specified angular separation. The invention also provides a method of detecting the azimuthal positions indicated above utilizing a programmable electronic device capable of storing, retrieving and processing data.

摘要翻译： 定位光纤（10）那样的横向轴线的方位角位置的方法，有一个包层（17）和芯（16），其具有椭圆形横截面，其中，所述椭圆形横截面具有长轴和短轴 和光纤具有纵向轴线。 因此，本发明提供在检测的光学纤维的方位角位置，从中从引导到所述光纤的方向上横向于光纤的纵向轴线的相干光束通过反射所产生的干涉图案的方法改变对称作为纤维是 接通在绕其纵向轴线沿相反的方向。 此外，本发明提供了确定性矿哪个光纤椭圆的核心，其长轴或短轴的轴线，被正交相干氦氖激光束（12）对齐的方法。 此外，本发明提供接合两根光纤其中纤维椭圆形芯的横向轴线彼此对准，或在指定的角度间隔彼此分离的方法。 因此本发明提供了检测上述利用能够存储，检索和处理数据的可编程电子设备指示的方位角位置的方法。