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1. 发明申请

US20180244556A1 PRODUCTION METHOD FOR MULTICORE OPTICAL FIBER 审中-公开
公开(公告)号：US20180244556A1
公开(公告)日：2018-08-30
申请号：US15864028
申请日：2018-01-08
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Takuji NAGASHIMA , Tetsuya Nakanishi
IPC分类号： C03B37/012 , G02B6/02
CPC分类号： C03B37/01222 , C03B37/01231 , C03B37/0124 , C03B37/01251 , C03B37/0126 , C03B37/02736 , C03B37/02745 , C03B37/02772 , C03B2203/34 , C03B2205/07 , C03B2205/08 , C03B2205/45 , C03B2205/46 , C03B2205/47 , G02B6/02042
摘要： There is provided a method for producing a multicore optical fiber while reducing the mass of a glass block to be connected to a common cladding tube. A production method for a multicore optical fiber includes in order, a preform forming step of forming a common cladding tube having a plurality of holes extending between a first end and a second end, an insertion step of inserting core rods in the holes in a state in which end portions of the core rods are recessed from the first end, a heat shrinkage step of reducing a diameter of the first end by heating, a sealing step of sealing the holes by connecting a glass block to the first end, and a drawing step of depressurizing insides of the holes from the second end and performing spinning from the first end while combining the common cladding tube and the core rods.

2. 发明授权

US09815731B1 Tapered core fiber manufacturing methods 有权
公开(公告)号：US09815731B1
公开(公告)日：2017-11-14
申请号：US15299327
申请日：2016-10-20
申请人： nLIGHT, Inc.
发明人： Joona Koponen , Laeticia Petit , Petteri Väinänen
IPC分类号： G02B6/02 , C03B37/023 , C03B37/025 , H01S3/067
CPC分类号： C03B37/0253 , C03B37/01228 , C03B37/0124 , C03B37/01245 , C03B37/02754 , C03B37/02763 , C03B2201/34 , C03B2201/36 , C03B2203/10 , C03B2203/18 , C03B2203/23 , C03B2205/08 , C03B2205/13 , C03B2205/44 , C03C25/68 , G02B6/02 , G02B6/02052 , G02B6/03622 , G02B6/14 , H01S3/06708 , H01S3/06745
摘要： Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.

3. 发明授权

US09493374B2 Glass base material elongating method 有权
标题翻译：玻璃基材伸长方法
公开(公告)号：US09493374B2
公开(公告)日：2016-11-15
申请号：US13757860
申请日：2013-02-04
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Hideki Fujii
IPC分类号： C03B37/012 , C03B37/025 , C03B37/014
CPC分类号： C03B37/0124 , C03B37/01466 , Y02P40/57
摘要： A glass base material elongating method of elongating a glass base material to make a diameter of the glass base material smaller by connecting a pulling dummy at an end of the glass base material and then gripping and pulling the pulling dummy with a pair of rollers that grip or release the pulling dummy is provided. The method includes forming a rough surface part on the pulling dummy before elongating the glass base material.The rough surface part may be formed by grinding the pulling dummy. Also, the rough surface part of the pulling dummy may have a roughness of 5 μm or more.
摘要翻译：粗糙表面部分可以通过研磨拉动模具而形成。此外，拉动模具的粗糙表面部分可以具有5μm以上的粗糙度。

4. 发明授权

US09440874B2 Glass base material elongating method and glass base material elongating apparatus 有权
标题翻译：玻璃基材伸长方法和玻璃基材伸长装置
公开(公告)号：US09440874B2
公开(公告)日：2016-09-13
申请号：US13743353
申请日：2013-01-17
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Tetsuya Otosaka
IPC分类号： C03B37/02 , C03B37/15 , C03B37/012
CPC分类号： C03B37/15 , C03B37/0124 , C03B37/0126 , Y02P40/57
摘要： Provided is a glass base material elongating method of using a glass base material elongation apparatus including a heating furnace, a feeding mechanism, and a pulling mechanism to elongate the rod-shaped glass base material to form a thinner glass rod, the method comprising gripping a pulling dummy rod connected to a bottom end of the glass base material with first pulling rollers of the pulling mechanism and, together with the feeding mechanism, feeding the glass base material to the heating furnace; and before a pulling force necessary for pulling the pulling dummy rod to elongate the glass base material reaches a load force that causes slipping between the pulling dummy rod and the first pulling rollers, gripping and pulling the pulling dummy rod with second pulling rollers of the pulling mechanism in addition to the first pulling rollers.
摘要翻译：本发明提供一种使用包括加热炉，进料机构和拉动机构的玻璃基材伸长装置的玻璃基材延长方法，以拉长杆状玻璃基材以形成较薄的玻璃棒，该方法包括：拉拔虚拟棒，其与拉动机构的第一牵引辊连接到玻璃基材的底端，并与进给机构一起将玻璃基材输送到加热炉; 并且在拉动拉拔虚拟棒以拉长玻璃基材所需的拉力之前达到引起拉拔虚拟杆和第一牵引辊之间滑动的负载力，用拉动的第二牵引辊抓住并拉动拉动的虚拟杆机构除了第一拉辊。

5. 发明申请

US20160251254A1 GLASS BASE MATERIAL ELONGATING METHOD AND GLASS BASE MATERIAL ELONGATING APPARATUS 有权
公开(公告)号：US20160251254A1
公开(公告)日：2016-09-01
申请号：US15153734
申请日：2016-05-13
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Tetsuya OTOSAKA
IPC分类号： C03B37/07 , C03B37/03
CPC分类号： C03B37/07 , C03B23/045 , C03B23/047 , C03B37/0124 , C03B37/0126 , C03B37/0253 , C03B37/032 , C03B2205/40
摘要： A glass base material elongating method of sequentially feeding rod-like glass base materials hung by a glass base material feeding mechanism into a heating furnace, and pulling a glass rod with a smaller diameter by a pulling chuck at a lower part of the heating furnace, includes: aligning, by an alignment guiding device that guides the glass rod, a guiding center of the alignment guiding device with an axis of the glass rod, the alignment guiding device guiding the glass rod between the heating furnace and the pulling chuck.

6. 发明申请

US20150017440A1 QUARTZ GLASS TUBE AS A SEMI-FINISHED PRODUCT FOR AN OPTICAL COMPONENT AND METHOD FOR PRODUCING SAID QUARTZ GLASS TUBE 审中-公开
标题翻译： QUARTZ玻璃管作为光学部件的半精加工产品和生产标准石英玻璃管的方法
公开(公告)号：US20150017440A1
公开(公告)日：2015-01-15
申请号：US14372734
申请日：2013-01-17
申请人： Heraeus Quarzglas GmbH & Co KG
发明人： Gerhard Schötz , Karsten Bräuer , Richard Schmidt , Peter Bauer , Andreas Schultheis , Clemens Schmitt , Andreas Langner
IPC分类号： C03B37/012
CPC分类号： C03B37/01211 , C03B37/01222 , C03B37/01228 , C03B37/0124 , C03B37/01291 , C03B37/01426 , C03B2201/12 , C03B2201/31 , C03B2203/04 , C03B2203/12 , C03B2203/23 , C03B2203/31 , C03B2203/32 , C03B2203/34 , Y02P40/57 , Y10T428/2935
摘要： A quartz glass tube as a semi-finished product for an optical component that has an inner bore extending along a tube centre axis for the acceptance of a core rod and a tube wall limited by an inner casing surface and an outer casing surface is already known; within said tube wall an inner region made of a first quartz glass and an outer region made of a second quartz glass with a different index of refraction surrounding the inner region contact one another at a contact surface which runs around the centre axis. In order to provide a quartz glass on this basis that facilitates the production of optical components for special applications such as laser-activated optical components in wand or fibre form, the invention states that the contact surface has a non-round course in the radial cross-section and the inner casing surface has a circular course.
摘要翻译：作为用于光学部件的半成品的石英玻璃管是具有沿着管中心轴延伸以便接受芯棒的内孔和由内壳表面和外壳表面限制的管壁的半成品已知 ; 在所述管壁内，围绕内部区域的折射率不同的由第二石英玻璃制成的内部区域由第一石英玻璃制成的外部区域和围绕中心轴线的接触表面彼此接触。为了在此基础上提供石英玻璃，有助于生产用于特殊应用的光学部件，例如以棒或纤维形式的激光激活光学部件，本发明指出接触表面具有径向十字形的非圆形过程并且内壳表面具有圆形过程。

7. 发明申请

US20130291601A1 GLASS BASE MATERIAL ELONGATING METHOD AND GLASS BASE MATERIAL ELONGATING APPARATUS 有权
标题翻译：玻璃基材料开发方法和玻璃基材料开发设备
公开(公告)号：US20130291601A1
公开(公告)日：2013-11-07
申请号：US13869987
申请日：2013-04-25
申请人： SHIN-ETSU CHEMICAL CO., LTD.
发明人： Tetsuya OTOSAKA
IPC分类号： C03B37/03 , C03B37/025
CPC分类号： C03B37/07 , C03B23/045 , C03B23/047 , C03B37/0124 , C03B37/0126 , C03B37/0253 , C03B37/032 , C03B2205/40
摘要： A glass base material elongating method of sequentially feeding rod-like glass base materials hung by a glass base material feeding mechanism into a heating furnace, and pulling a glass rod with a smaller diameter by a pulling chuck at a lower part of the heating furnace, includes: aligning, by an alignment guiding device that guides the glass rod, a guiding center of the alignment guiding device with an axis of the glass rod, the alignment guiding device guiding the glass rod between the heating furnace and the pulling chuck.
摘要翻译：将由玻璃基材供给机构悬挂的棒状玻璃基材顺序供给到加热炉中的玻璃基材延长方法，在加热炉的下部通过牵引卡盘拉动直径较小的玻璃棒，包括：通过引导玻璃棒的对准引导装置将对准引导装置的引导中心与玻璃杆的轴对准，对准引导装置将玻璃棒引导到加热炉和拉动卡盘之间。

8. 发明申请

US20130114933A1 ULTRA HIGH NUMERICAL APERTURE OPTICAL FIBERS 有权
公开(公告)号：US20130114933A1
公开(公告)日：2013-05-09
申请号：US13610270
申请日：2012-09-11
申请人： Liang Dong , Xiang Peng , Brian K. Thomas
发明人： Liang Dong , Xiang Peng , Brian K. Thomas
IPC分类号： G02B6/02
CPC分类号： G02B6/02 , C03B37/01211 , C03B37/0124 , C03B37/01254 , C03B37/0126 , C03B37/018 , C03B2203/14 , C03B2203/30 , G02B6/02261 , G02B6/02333 , G02B6/02366 , G02B6/03644
摘要： Various embodiments described include optical fiber designs and fabrication processes for ultra high numerical aperture optical fibers (UHNAF) having a numerical aperture (NA) of about 1. Various embodiments of UHNAF may have an NA greater than about 0.7, greater than about 0.8, greater than about 0.9, or greater than about 0.95. Embodiments of UHNAF may have a small core diameter and may have low transmission loss. Embodiments of UHNAF having a sufficiently small core diameter provide single mode operation. Some embodiments have a low V number, for example, less than 2.4 and large dispersion. Some embodiments of UHNAF have extremely large negative dispersion, for example, less than about −300 ps/nm/km in some embodiments. Systems and apparatus using UHNAF are also disclosed.

9. 发明申请

US20100095706A1 Method for manufacturing optical fibers and optical fiber performs 审中-公开
标题翻译：制造光纤和光纤的方法
公开(公告)号：US20100095706A1
公开(公告)日：2010-04-22
申请号：US12588568
申请日：2009-10-20
申请人： Mohammed Saad
发明人： Mohammed Saad
IPC分类号： C03C3/32
CPC分类号： C03C13/042 , C03B37/01211 , C03B37/0124 , C03B37/027 , C03B2201/82 , C03C3/325
摘要： A method of manufacturing an optical fiber preform, the method comprising: providing a substantially elongated core preform made out of a core fluorinated glass; providing a substantially elongated and substantially tubular cladding preform made out of a cladding fluorinated glass, the cladding preform defining a bore extending substantially longitudinally therethrough; inserting the core preform into the bore of the cladding preform; fusing the core preform and the cladding preform to each other to produce an intermediate preform; heating the intermediate preform up to a stretching temperature, the stretching temperature being such that the core and cladding fluorinated glasses both have a viscosity of between 10−7 and 10−9 Pa s at the stretching temperature; stretching the intermediate preform at the stretching temperature to produce a stretched intermediate preform; and cutting a section of the stretched intermediate preform. Typically, the stretching temperature is between a vitreous transition temperature and a crystallization temperature of the core and cladding glasses.
摘要翻译：一种制造光纤预制棒的方法，所述方法包括：提供由芯状氟化玻璃制成的大致细长的芯预制件; 提供由包层氟化玻璃制成的基本上细长且基本上管状的包层预制件，所述包层预制件限定基本上纵向延伸穿过其中的孔; 将芯预制件插入包层预制件的孔中; 将芯预制件和包层预制件彼此熔合以制造中间预制件; 将中间预制件加热到拉伸温度，拉伸温度使得芯和包层氟化玻璃在拉伸温度下的粘度都在10-7和10-9Pa之间; 在拉伸温度下拉伸中间预制件以制备拉伸的中间预制件; 并切割拉伸的中间预型件的一部分。通常，拉伸温度在玻璃化转变温度和芯和包层玻璃的结晶温度之间。

10. 发明申请

US20090308106A1 Electric furnace extension method and extension apparatus for optical fiber glass preform 审中-公开
标题翻译：电炉延伸方法及光纤玻璃预制棒延伸装置
公开(公告)号：US20090308106A1
公开(公告)日：2009-12-17
申请号：US11907873
申请日：2007-10-18
申请人： Tetsuro Wada , Masahide Kuwabara , Yukio Komura
发明人： Tetsuro Wada , Masahide Kuwabara , Yukio Komura
IPC分类号： C03B37/02
CPC分类号： C03B37/01486 , C03B37/0124 , Y02P40/57
摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.
摘要翻译：一种电炉延伸方法和装置，用于在连接延伸使用体和牵引构件时使光纤玻璃体对准，并且使得可以在连接部分的熔合之后立即开始延伸。在电炉的炉管和延伸用玻璃体的夹具之间以及炉管和拉件之间设置有用于使炉体中心侧的主体和部件的自由端部对中的定心机构。自由端部由该定心机构居中，然后将主体和构件的夹持侧固定，两个自由端部的前端在电炉内部的最高温度部分抵接并熔接并粘合，最高温度部分移动到玻璃体侧的延伸部分并开始玻璃体的延伸。

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