公开(公告)号：US6145344A

公开(公告)日：2000-11-14

申请号：US284902

申请日：1994-08-02

申请人： Hiroshi Oyamada ,  Hiroyuki Koide ,  Goh Ogino ,  Hideo Hirasawa

发明人： Hiroshi Oyamada ,  Hiroyuki Koide ,  Goh Ogino ,  Hideo Hirasawa

IPC分类号： C03B37/018 ,  C03B37/014 ,  G02B6/00 ,  G02B6/036

CPC分类号： G02B6/03633 ,  C03B37/0142 ,  G02B6/02042 ,  C03B2203/22 ,  C03B2203/34 ,  C03B2207/06 ,  C03B2207/50 ,  C03B2207/60 ,  C03B2207/64 ,  C03B2207/66 ,  G02B6/0281 ,  G02B6/0286

摘要： Proposed is an improvement in the VAD process for the preparation of a porous silica glass preform for double-core optical fibers by using three oxyhydrogen flame burners installed one above the other in a flame hydrolysis chamber in which a porous silica glass body consisting of the center core portion formed by the lowermost burner, side core portion formed by the middle burner and the cladding layer formed by the uppermost burner is gradually pulled up as it grows under rotation. Different from conventional procedures in which the extension of the nozzle axis of each of the burners intersects with the rotation axis of the growing body, the extension of the nozzle axis of the middle burner for the side core is displaced in a horizontal direction by a limited distance not to intersect nor to be in parallel with the rotation axis in the invention. By this means, an improvement is obtained in the uniformity of distribution of the refractive index in the side core which otherwise is remarkably disordered.

摘要翻译： 提出了通过在火焰水解室中使用三个氢氧焰燃烧器一起制备用于双芯光纤的多孔石英玻璃预制件的VAD方法的改进，其中由中心组成的多孔石英玻璃体 由最下面的燃烧器形成的芯部，由中间燃烧器形成的侧芯部和由最上面的燃烧器形成的包覆层随着其旋转而逐渐上升。 与常规方法不同，其中每个燃烧器的喷嘴轴线的延伸与生长体的旋转轴线相交，用于侧芯的中间燃烧器的喷嘴轴线的延伸在水平方向上被限制 在本发明中不相交或不与旋转轴平行的距离。 通过这种方式，在侧核中折射率分布的均匀性得到改善，否则其显着无序。

公开(公告)号：US5712941A

公开(公告)日：1998-01-27

申请号：US658074

申请日：1996-06-04

申请人： Katsuyuki Imoto ,  Kazuo Koya ,  Jun Abe

发明人： Katsuyuki Imoto ,  Kazuo Koya ,  Jun Abe

IPC分类号： C03B37/012 ,  C03B37/014 ,  C03C13/04 ,  G02B6/00 ,  G02B6/02 ,  G02B6/036 ,  G02B6/04 ,  G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/17

CPC分类号： G02B6/03694 ,  C03B37/01222 ,  C03B37/01262 ,  C03B37/01433 ,  C03C13/045 ,  G02B6/03627 ,  G02B6/04 ,  H01S3/06708 ,  C03B2201/36 ,  C03B2203/22 ,  C03B2203/34 ,  C03C2201/36 ,  G02B6/02042 ,  G02B6/0281 ,  H01S3/06729

摘要： A rare earth element-doped multiple-core optical fiber has an outer cladding layer and a plurality of cores each covered with a primary cladding layer. The cores are positioned substantially on a central axis of the outer cladding layer and separated with a predetermined spacing S from each other by the primary cladding layer. The outer cladding layers are made of SiO.sub.2, or SiO.sub.2 added with a dopant like F, Ge, etc. The primary cladding layer is made of SiO.sub.2 doped with Er, or SiO.sub.2 doped with Er and F together and formed to have a predetermined thickness of 1.0 .mu.m.about.1.5 .mu.m to form the predetermined spacing S. The Soot glass rods for cores and primary cladding layers are immersed in an Er-compound solution, then picked up, dried and consolidated to form Er--Al co-doped SiO.sub.2 --GeO.sub.2 transparent glass rods. The glass rods are inserted into a quartz tube and collapsed by heat to fabricate an optical fiber preform rod, then heated to be drawn to provide an Er-doped multiple-core optical fiber.

摘要翻译： 稀土元素掺杂多芯光纤具有外包层和多个芯，其各自覆盖有初级包覆层。 芯基本上位于外包层的中心轴线上，并以预定间隔S彼此分开由初级包层。 外包层由SiO 2或添加有诸如F，Ge等的掺杂剂的SiO 2制成。初始包层由掺杂有Er或SiO 2的SiO或掺杂有Er和F的SiO 2制成，并且形成为具有预定厚度的 1.0微米差异1.5微米以形成预定的间距S.将用于芯和初级包层的烟灰玻璃棒浸入Er-化合物溶液中，然后拾取，干燥并固化以形成Er-Al共掺杂的SiO 2 - GeO2透明玻璃棒。 将玻璃棒插入石英管并通过加热折叠以制造光纤预制棒，然后加热以拉伸以提供掺铒多芯光纤。

公开(公告)号：US5560759A

公开(公告)日：1996-10-01

申请号：US338926

申请日：1994-11-14

申请人： Ahmet R. Kortan ,  Robert M. Pafchek

发明人： Ahmet R. Kortan ,  Robert M. Pafchek

IPC分类号： G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  G02B6/036 ,  G02B6/10

CPC分类号： G02B6/03638 ,  C03B37/01268 ,  C03C13/04 ,  C03C13/042 ,  G02B6/102 ,  C03B2201/82 ,  C03B2203/12 ,  C03B2203/20 ,  C03B2203/24 ,  C03B2203/26 ,  C03B2203/34

摘要： A method and apparatus are provided for forming a glass preform which can be directly drawn into a single or multi-mode optical fiber. Single or multi-mode fibers drawn from the preforms described herein have high quality core-clad interfaces since the core and cladding materials are not exposed to crystallization temperatures upon the addition of the core material to cladding material.

摘要翻译： 提供了一种用于形成玻璃预制件的方法和装置，其可直接拉入单模或多模光纤。 由本文所述的预成型件拉制的单模或多模纤维具有高质量的芯包层界面，因为在将芯材添加到包层材料时，芯和包层材料不暴露于结晶温度。

公开(公告)号：US4229197A

公开(公告)日：1980-10-21

申请号：US914470

申请日：1978-06-12

申请人： DeWayne A. Streng

发明人： DeWayne A. Streng

IPC分类号： C03B37/012 ,  C03B37/028 ,  G02B6/04 ,  C03B37/02

CPC分类号： C03B37/01222 ,  G02B6/04 ,  C03B2203/34 ,  G02B6/02042

摘要： A multiple optical core fiber and method for manufacturing it. Two or more chemical vapor deposition type preforms are fused with a hydrogen-oxygen torch and then etched in a solution of 50% hydrofluoric and 50% nitric acid. A hollow quartz tube is subjected to internal gas pressure while a hydrogen-oxygen torch is passed along it. This expands and cleans the tube. The chemical vapor deposition preforms are inserted within the expanded tube which is again subjected to the torch to collapse it about the preforms. A nearly solid glass rod with two or more optical waveguide cores is thereby formed. This multiple core preform may then be drawn into a multiple core fiber which can be utilized for the transmission of light pulses.

摘要翻译： 一种多芯光纤纤维及其制造方法。 将两个或更多个化学气相沉积型预型件与氢氧炬熔合，然后在50％氢氟酸和50％硝酸的溶液中蚀刻。 中空石英管经受内部气体压力，同时通过氢氧焰炬。 这样可以扩大和清洁管子。 将化学气相沉积预成型件插入膨胀管内，该管再次经受割炬以将其围绕预型件折叠。 由此形成具有两个或更多个光波导芯的几乎实心的玻璃棒。 然后可以将该多芯预成型件拉入可用于传输光脉冲的多芯光纤。

公开(公告)号：US3923486A

公开(公告)日：1975-12-02

申请号：US39883273

申请日：1973-09-19

申请人： NIHON ITAGARASU KABUSHIKI KAIS

发明人： KITANO ICHIRO ,  KOIZUMI KEN ,  MATSUMURA HIROYOSHI

IPC分类号： C03B37/02 ,  C03B37/023 ,  C03B37/025 ,  C03B37/027 ,  C03B37/075 ,  C03C13/00 ,  C03C13/04 ,  C03C15/00 ,  C03C21/00 ,  G02B6/00 ,  G02B6/02 ,  G02B6/028 ,  G02B6/06 ,  G02B6/12 ,  G02B13/24 ,  H04B10/12 ,  G02B5/14

CPC分类号： G02B6/0281 ,  C03B37/023 ,  C03B37/027 ,  C03B2201/30 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/34 ,  C03C21/00 ,  G02B6/02 ,  G02B6/02042 ,  G02B2006/12183

摘要： By heat treating a glass member containing at least one kind of cation to constitute a modifying oxide in contact with a source of another kind of cation to cause ion substitution, a lightconducting glass structure can be produced to have a refractive index distribution wherein the index varies progressively transversely to the intended light path, which is thereby bent toward the direction of increase of the index, such a lightconducting glass structure is not accompanied by differences or lagging of phase velocities of conducted light rays, spreading of the light flux width, and reflection losses.

摘要翻译： 通过对含有至少一种阳离子的玻璃构件进行热处理以构成与另一种阳离子的源接触的改性氧化物以引起离子取代，可以制造导光玻璃结构以具有折射率分布，其中， 折射率随预期光路逐渐变化，从而朝着折射率增加的方向弯曲，这样的导光玻璃结构不伴随传导光线的相速度的差异或滞后，光通量的扩展 宽度和反射损失。

公开(公告)号：US20240199468A1

公开(公告)日：2024-06-20

申请号：US18413911

申请日：2024-01-16

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Daniel J. Gibson ,  Daniel Rhonehouse ,  Shyam S. Bayya ,  L. Brandon Shaw ,  Rafael R. Gattass ,  Jesse A. Frantz ,  Jason D. Myers ,  Woohong Kim ,  Jasbinder S. Sanghera

IPC分类号： C03B37/012 ,  C03B37/023 ,  C03B37/027 ,  C03C25/005 ,  C03C25/106 ,  G02B6/10

CPC分类号： C03B37/01217 ,  C03B37/0122 ,  C03B37/01222 ,  C03B37/01225 ,  C03B37/023 ,  C03B37/02709 ,  C03B37/0279 ,  C03C25/005 ,  C03C25/1063 ,  C03B2201/86 ,  C03B2203/302 ,  C03B2203/34 ,  G02B6/102

摘要： This application relates generally to an optical fiber for the delivery of infrared light where the polarization state of the light entering the fiber is preserved upon exiting the fiber and the related methods for making thereof. The optical fiber has a wavelength between about 0.9 μm and 15 μm, comprises at least one infrared-transmitting glass, and has a polarization-maintaining (PM) transverse cross-sectional structure. The infrared-transmitting, polarization-maintaining (IR-PM) optical fiber has a birefringence greater than 10−5 and has applications in dual-use technologies including laser power delivery, sensing and imaging.

公开(公告)号：US11912606B2

公开(公告)日：2024-02-27

申请号：US16842033

申请日：2020-04-07

申请人： The Government of the United States of America, as represented by the Secretary of the Navy

发明人： Daniel J. Gibson ,  Daniel Rhonehouse ,  Shyam S. Bayya ,  L. Brandon Shaw ,  Rafael R. Gattass ,  Jesse A. Frantz ,  Jason D. Myers ,  Woohong Kim ,  Jasbinder S. Sanghera

IPC分类号： C03B37/012 ,  C03B37/027 ,  G02B6/024 ,  C03B37/023 ,  C03C25/005 ,  C03C25/106 ,  G02B6/10

CPC分类号： C03B37/01217 ,  C03B37/0122 ,  C03B37/01222 ,  C03B37/01225 ,  C03B37/023 ,  C03B37/0279 ,  C03B37/02709 ,  C03C25/005 ,  C03C25/1063 ,  C03B2201/86 ,  C03B2203/302 ,  C03B2203/34 ,  G02B6/102

摘要： This application relates generally to an optical fiber for the delivery of infrared light where the polarization state of the light entering the fiber is preserved upon exiting the fiber and the related methods for making thereof. The optical fiber has a wavelength between about 0.9 μm and 15 μm, comprises at least one infrared-transmitting glass, and has a polarization-maintaining (PM) transverse cross-sectional structure. The infrared-transmitting, polarization-maintaining (IR-PM) optical fiber has a birefringence greater than 10−5 and has applications in dual-use technologies including laser power delivery, sensing and imaging.

公开(公告)号：US20190235160A1

公开(公告)日：2019-08-01

申请号：US16381836

申请日：2019-04-11

申请人： nLIGHT, Inc.

发明人： Joona Koponen ,  Changgeng Ye ,  Ossi Kimmelma

IPC分类号： G02B6/028 ,  G02B6/02 ,  C03B37/028 ,  G02B6/14 ,  C03B37/012 ,  C03B37/025 ,  C03B37/027

CPC分类号： G02B6/0286 ,  C03B37/01222 ,  C03B37/0253 ,  C03B37/02745 ,  C03B37/02763 ,  C03B37/028 ,  C03B2203/12 ,  C03B2203/20 ,  C03B2203/32 ,  C03B2203/34 ,  C03B2205/07 ,  G02B6/02 ,  G02B6/02009 ,  G02B6/02338 ,  G02B6/028 ,  G02B6/14

摘要： Optical waveguide cores having refractive index profiles that vary angularly about a propagation axis of the core can provide single-mode operation with larger core diameters than conventional waveguides. In one representative embodiment, an optical waveguide comprises a core that extends along a propagation axis and has a refractive index profile that varies angularly about the propagation axis. The optical waveguide can also comprise a cladding disposed about the core and extending along the propagation axis. The refractive index profile of the core can vary angularly along a length of the propagation axis.

公开(公告)号：US20180259707A1

公开(公告)日：2018-09-13

申请号：US15755138

申请日：2016-08-26

申请人： BAR-ILAN UNIVERSITY ,  Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.

发明人： Zeev ZALEVSKY ,  Michael LONDON ,  Eyal COHEN ,  Amir SHEMER ,  Dror MALKA

IPC分类号： G02B6/02 ,  G02B6/35 ,  G02B6/43 ,  G06N3/04 ,  G02B6/26

CPC分类号： G02B6/02042 ,  C03B2203/34 ,  G02B6/262 ,  G02B6/3518 ,  G02B6/43 ,  G06N3/04 ,  G06N3/063 ,  G06N3/08

摘要： An integrated optical module is provided. The optical module includes multi optically-coupled channels, and enables the use thereof in an Artificial Neural Network (ANN). According to some embodiments the integrated optical module includes a multi-core optical fiber, wherein the cores are optically coupled.

公开(公告)号：US10073217B2

公开(公告)日：2018-09-11

申请号：US15324027

申请日：2016-01-29

申请人： FUJIKURA LTD.

发明人： Itaru Ishida ,  Shoichiro Matsuo

IPC分类号： G02B6/02 ,  C03B37/027 ,  G02B6/036

CPC分类号： G02B6/02042 ,  C03B37/01214 ,  C03B37/027 ,  C03B37/02754 ,  C03B2203/34 ,  G02B6/036

摘要： A multicore optical fiber (1) includes a plurality of cores (11 to 16) and a cladding (20) surrounding the outer circumferential surfaces of the cores (11 to 16). In the plurality of cores of the multicore optical fiber (1), a skew value (S) between a pair of cores is expressed by a predetermined expression. The multicore optical fiber (1) is bent in a specific bending direction, in which in all of the combinations of the pairs of cores in the plurality of cores, the pair of cores has the maximum absolute value of the skew value found by the expression and the skew value of the pair of cores is a minimum value.