公开(公告)号：US06697562B1

公开(公告)日：2004-02-24

申请号：US09619715

申请日：2000-07-19

Applicant: Ji-Hoon Lee ,  Mun-Hyun Do

Inventor： Ji-Hoon Lee ,  Mun-Hyun Do

IPC: G02B600

CPC classification number: G02B6/02009 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/36 ,  G02B6/02219 ,  G02B6/02242 ,  G02B6/03622 ,  G02B6/03694 ,  Y02P40/57

Abstract: A dispersion control fiber and a method of manufacturing a large size preform. The dispersion control fiber includes a core composed of SiO2, GeO2, and P2O5, and a cladding composed of SiO2, GeO2, P2O5, and Freon. The P2O5 content is selected not to exceed 10% total weight of a compound composing the core. The method of manufacturing a large size perform for a dispersion control fiber by an MCVD process includes depositing SiO2, GeO2, P2O5, and Freon in an inner periphery of a deposition tube to form a cladding layer, and depositing SiO2, GeO2, and P2O5 on an inner periphery of the cladding layer to form a core layer.

Abstract translation: 一种分散控制纤维及其制造方法。 色散控制光纤包括由SiO 2，GeO 2和P 2 O 5组成的芯和由SiO 2，GeO 2，P 2 O 5和氟利昂组成的包层。 选择P2O5含量不超过构成核心的化合物的总重量的10％。 通过MCVD工艺制造用于分散控制光纤的大尺寸的方法包括在沉积管的内周中沉积SiO 2，GeO 2，P 2 O 5和氟利昂以形成包覆层，并将SiO 2，GeO 2和P 2 O 5沉积在 包层的内周，形成芯层。

公开(公告)号：US20040028362A1

公开(公告)日：2004-02-12

申请号：US10634779

申请日：2003-08-06

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Tetsuya Otosaka ,  Dai Inoue ,  Hiroshi Oyamada ,  Jun Abe ,  Hideo Hirasawa

IPC: G02B006/02

CPC classification number: C03C13/045 ,  C03B37/01211 ,  C03B37/01291 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/03694 ,  Y02P40/57

Abstract: Even if an optical fiber obtained by drawing a preform is exposed to hydrogen atmosphere, an OH peak in the optical fiber at wavelength of about 1385 nm hardly rises regardless of the condition of drawing.

Abstract translation: 即使通过拉伸预成型体获得的光纤暴露于氢气氛中，波长约1385nm的光纤中的OH峰也不会随着拉伸条件而上升。

公开(公告)号：US06687445B2

公开(公告)日：2004-02-03

申请号：US09888916

申请日：2001-06-25

Applicant: Adrian Carter ,  Kanishka Tankala ,  Martin Seifert

Inventor： Adrian Carter ,  Kanishka Tankala ,  Martin Seifert

IPC: G02B602

CPC classification number: G02B6/03622 ,  C03B37/01294 ,  C03B37/014 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2203/23 ,  C03C25/105 ,  C03C25/47 ,  G02B6/02295 ,  G02B6/02376 ,  G02B6/03694 ,  H01S3/06729 ,  H01S3/094007

Abstract: A double-clad optical fiber includes a core, a multimode inner cladding layer disposed about the core, and a second cladding layer disposed about the inner cladding layer. The core includes an active material for absorbing pump radiation received by the inner cladding. The multimode inner cladding includes truncated regions including a first material, where the first material has an index of refraction that is different than the material of the inner cladding that surrounds said truncated regions, for promoting the scattering of pump radiation propagating in the multimode inner cladding for increasing the absorption of the pump radiation by the active material of the core. Particles can be distributed in soot deposited via Outside Vapor Deposition for forming the truncated regions in an optical fiber drawn from the preform.

Abstract translation: 双包层光纤包括芯，围绕芯设置的多模内包层和围绕内包层设置的第二包层。 该芯包括用于吸收由内包层接收的泵浦辐射的活性材料。 多模内包层包括包括第一材料的截面区域，其中第一材料的折射率不同于围绕所述截顶区域的内包层的材料，用于促进在多模内包层中传播的泵浦辐射的散射 用于增加核辐射的活性物质对泵辐射的吸收。 颗粒可以分布在通过外部气相沉积沉积的烟灰中，用于在从预成型体拉制的光纤中形成截面区域。

公开(公告)号：US20030217569A1

公开(公告)日：2003-11-27

申请号：US10154572

申请日：2002-05-23

Inventor： George H. Sigel JR. ,  Daniel S. Homa

IPC: C03B037/018

CPC classification number: C03B37/01807 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/22 ,  C03B2207/81 ,  C03B2207/90 ,  C03C13/045 ,  C03C2201/32 ,  C03C2201/36 ,  C03C2201/50 ,  C03C2201/54

Abstract: A preform for a low loss fiber optic cable and method and apparatus for fabricating such a preform is provided. The method includes providing AlCl3 and CVD precursors and locally doping CaCl3. Alkali and/or alkaline earth fluxing agents can be introduced. The alkali and/or alkaline earths are doped along with the aluminum into the silica glass core.

Abstract translation: 提供了一种用于低损耗光纤电缆的预成型件以及用于制造这种预制件的方法和装置。 该方法包括提供AlCl 3和CVD前体并局部掺杂CaCl 3。 可以引入碱和/或碱土助熔剂。 碱和/或碱土金属与铝一起掺入石英玻璃芯中。

公开(公告)号：US06650813B2

公开(公告)日：2003-11-18

申请号：US09776762

申请日：2001-02-06

Applicant: Jeong U Jeon ,  Young Tark Lee

Inventor： Jeong U Jeon ,  Young Tark Lee

IPC: G02B622

CPC classification number: G02B6/03688 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02233 ,  G02B6/02242 ,  G02B6/02252 ,  G02B6/02261

Abstract: The invention relates to a dispersion flattened fiber (DFF) with high negative dispersion and a manufacturing method thereof. The dispersion flattened fiber comprises a central core; ring-type cores and low refractive regions alternately formed outside the central core; a cladding surrounding outside the ring-type cores and low refractive regions; and a coating outside the cladding. Since the dispersion flattened fiber has the dispersion of −20 to −60, it has a wide range of application and can be used for various purposes in the field of optical telecommunication.

公开(公告)号：US20030182970A1

公开(公告)日：2003-10-02

申请号：US10106868

申请日：2002-03-27

Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH

Inventor： Ranjan Sen ,  Mrinmay Pal ,  Mukul Chandra Paul ,  Shyamal Kumar Bhadra ,  Somesh Chatterjee ,  Kamal Dasgupta

IPC: C03B037/075

CPC classification number: C03B37/01807 ,  C03B37/01838 ,  C03B37/01853 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36

Abstract: The present invention provides a method of fabricating rare earth doped preforms and optical fibres by a combination of modified chemical vapour deposition (MCVD) process and solution doping technique said MCVD process is used to develop matched or depressed clad structure inside a silica glass substrate tube followed by deposition of porous silica soot layer containing GeO2, P2O5 or such refractive index modifiers by the backward deposition method for formation of the core and presintering the deposited particulate layer by backward pass with flow of GeCl4 and/or corresponding dopant halides, soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing codopants such as AlCl3 in definite proportion, drying, oxidation, dehydration and sintering of the RE containing porous deposit and by collapsing at a high temperature to produce the preform followed by drawing the fibres by known technique to produce fibres with suitable core-clad dimensions and geometry.

Abstract translation: 本发明提供了一种通过改进的化学气相沉积（MCVD）工艺和溶液掺杂技术的组合制造稀土掺杂的预成型件和光纤的方法，所述MCVD工艺用于在石英玻璃衬底管内开发匹配或凹陷的包层结构，随后 通过用于形成芯的反向沉积方法沉积含有GeO 2，P 2 O 5或这种折射率改性剂的多孔二氧化硅烟灰层，并通过GeCl 4和/或相应的掺杂剂卤化物的流动反向通过沉积的颗粒层，浸泡多孔烟灰 将含有RE的多种沉积物的含RE的盐类，如AlCl 3的含水醇溶液/干燥，氧化，脱水和烧结，并在高温下收缩，制成预成型体，然后用纤维拉伸 已知的技术来生产具有合适的芯包层尺寸和几何形状的纤维。

公开(公告)号：US20030156318A1

公开(公告)日：2003-08-21

申请号：US10037731

申请日：2001-12-31

Inventor： Mark T. Anderson ,  Craig R. Schardt ,  James R. Onstott ,  Kent D. Budd

IPC: H01S003/00

CPC classification number: C03C3/06 ,  C03B19/1065 ,  C03B37/01807 ,  C03B37/01838 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/29 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/28 ,  C03C2201/31 ,  C03C2201/3405 ,  C03C2201/3411 ,  C03C2201/3417 ,  C03C2201/3458 ,  C03C2201/3476 ,  C03C2201/3482 ,  C03C2201/3494 ,  C03C2201/36 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/1693 ,  H01S3/1695 ,  H01S3/1698 ,  H01S3/17 ,  H01S3/176 ,  Y02P40/57

Abstract: A method of making an erbium-doped optical fiber for use in optical amplifiers according to the present invention includes the step of providing a substrate tube. High purity silica-based cladding layers are deposited on the inside of the tube. A core glass that includes silica, Al, a non-fluorescent rare-earth ion, Ge, Er, and Tm is then deposited in the tube. The non-fluorescent rare-earth ion may be La and the core may further include F. The tube is then collapsed to form a preform. Finally, the preform is drawn to yield optical fiber. The core glass may be substantially homogeneous. The core may include at least two regions, wherein one region contains a substantially different Er to Tm ratio than the other region. Said regions may be in an annular arrangement. The core of such a waveguide may be made with multiple MCVD passes, multiple sol-gel passes or with multiple soot deposition, solution doping, and consolidation passes.

Abstract translation: 根据本发明的制造用于光放大器的掺铒光纤的方法包括提供衬底管的步骤。 高纯度的二氧化硅基包覆层沉积在管的内部。 然后将包含二氧化硅Al，非荧光稀土离子Ge，Er和Tm的芯玻璃沉积在管中。 非荧光稀土离子可以是La，并且芯可以进一步包括F.然后将管塌缩以形成预制件。 最后，预制​​件被拉伸以产生光纤。 芯玻璃可以是基本均匀的。 芯可以包括至少两个区域，其中一个区域包含与其它区域基本上不同的Er至Tm比率。 所述区域可以是环形布置。 这种波导的核心可以通过多次MCVD通过，多次溶胶 - 凝胶通过或多次烟灰沉积，溶液掺杂和固结通过来制成。

公开(公告)号：US20030084685A1

公开(公告)日：2003-05-08

申请号：US10286302

申请日：2002-11-01

Applicant: JDS Uniphase Corporation

Inventor： Richard P. Tumminelli

IPC: C03B037/018

CPC classification number: C03B37/01807 ,  C03B2201/22 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2207/86 ,  C03B2207/87

Abstract: The invention provides a method of making an optical fiber preform using a modified chemical vapor deposition process by flowing glass precursor gases through a preform tube for depositing glass material therein, and simultaneously flowing heavy water vapors through the preform tube for incorporating deuteroxyl groups into the glass material. Then, the preform tube is controllably heated so as to effect a collapse of the preform tube into a rod. Advantageously, optical fibers drawn from such preforms have an increased resistance to hydrogen and will not require passivation.

Abstract translation: 本发明提供了一种使用改进的化学气相沉积工艺制造光纤预制件的方法，该方法是将玻璃前体气体流过用于在其中沉积玻璃材料的预成型管，同时使重水蒸气通过预制管，将氘氧基引入玻璃 材料。 然后，预成型管被可控制地加热，以使预制管弯曲成杆。 有利的是，从这种预制件中拉出的光纤具有增加的耐氢性，并且不需要钝化。

公开(公告)号：US06542665B2

公开(公告)日：2003-04-01

申请号：US09896777

申请日：2001-06-29

Applicant: William Alfred Reed ,  Mark J Schnitzer

Inventor： William Alfred Reed ,  Mark J Schnitzer

IPC: G02B632

CPC classification number: G02B6/3582 ,  A61B5/0084 ,  C03B37/01861 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2203/26 ,  G02B6/14 ,  G02B6/262 ,  G02B6/264 ,  G02B6/32 ,  G02B6/3512 ,  G02B6/3548 ,  G02B6/3552 ,  G02B6/3556 ,  G02B6/3594

Abstract: A GRIN fiber lens has a silica-glass core whose refractive index has a radial profile. The profile has a radial second derivative whose average magnitude in the core is less than about 1.7×10−6 microns−2 times the value of the refractive index on the axis of the GRIN fiber lens.

公开(公告)号：US20020197039A1

公开(公告)日：2002-12-26

申请号：US09888916

申请日：2001-06-25

Inventor： Adrian Carter ,  Kanishka Tankala ,  Martin Seifert

IPC: G02B006/22

CPC classification number: G02B6/03622 ,  C03B37/01294 ,  C03B37/014 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2203/23 ,  C03C25/105 ,  C03C25/47 ,  G02B6/02295 ,  G02B6/02376 ,  G02B6/03694 ,  H01S3/06729 ,  H01S3/094007

Abstract: A double-clad optical fiber includes a core, a multimode inner cladding layer disposed about the core, and a second cladding layer disposed about the inner cladding layer. The core includes an active material for absorbing pump radiation received by the inner cladding. The multimode inner cladding includes truncated regions including a first material, where the first material has an index of refraction that is different than the material of the inner cladding that surrounds said truncated regions, for promoting the scattering of pump radiation propagating in the multimode inner cladding for increasing the absorption of the pump radiation by the active material of the core. Particles can be distributed in soot deposited via Outside Vapor Deposition for forming the truncated regions in an optical fiber drawn from the preform.

Abstract translation: 双包层光纤包括芯，围绕芯设置的多模内包层和围绕内包层设置的第二包层。 该芯包括用于吸收由内包层接收的泵浦辐射的活性材料。 多模内包层包括包括第一材料的截面区域，其中第一材料的折射率不同于围绕所述截顶区域的内包层的材料，用于促进在多模内包层中传播的泵浦辐射的散射 用于增加核辐射的活性物质对泵辐射的吸收。 颗粒可以分布在通过外部气相沉积沉积的烟灰中，用于在从预成型体拉制的光纤中形成截面区域。