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1. 发明授权

US06842566B2 Optical fiber with built-in grating and optical fiber for forming grating therein 失效
标题翻译：具有内置光栅的光纤和用于在其中形成光栅的光纤
公开(公告)号：US06842566B2
公开(公告)日：2005-01-11
申请号：US10193733
申请日：2002-07-12
申请人： Shinji Ishikawa , Toshiki Taru , Masakazu Shigehara , Masaki Oomura
发明人： Shinji Ishikawa , Toshiki Taru , Masakazu Shigehara , Masaki Oomura
IPC分类号： G02B6/02 , G02B6/036 , G02B6/34
CPC分类号： G02B6/03666 , G02B6/021 , G02B6/02119 , G02B6/0365
摘要： The present invention provides an optical fiber equipped with a grating that functions as a narrow-band loss filter. The optical fiber has a core, an inner cladding, an intermediate cladding, and an outer cladding, which have refractive indexes n0, n1, n2, and n3, respectively, the refractive indexes having a relationship of n0>n3≧n1n2. At least a part of the inner cladding has a grating. The refractive index of the intermediate cladding is lower than the refractive indexes of the inner cladding and the outer cladding such that a recession is formed in the refractive index profile of the clad. The grating is provided on the inner side relative to the recession.
摘要翻译：本发明提供了配备有用作窄带损耗滤波器的光栅的光纤。光纤具有分别具有折射率n0，n1，n2和n3的折射率为n0> n3> = n1n2的芯，内包层，中间包层和外包层。内包层的至少一部分具有光栅。中间包层的折射率低于内包层和外包层的折射率，使得在包层的折射率分布中形成凹陷。光栅相对于经济衰退设置在内侧。

2. 发明授权

US07203399B2 Optical fiber and fiber grating type filter including the same 有权
标题翻译：光纤和光纤光栅类型的滤光片包括相同的
公开(公告)号：US07203399B2
公开(公告)日：2007-04-10
申请号：US10747085
申请日：2003-12-30
申请人： Shinji Ishikawa , Toshiki Taru , Masakazu Shigehara , Masaki Ohmura
发明人： Shinji Ishikawa , Toshiki Taru , Masakazu Shigehara , Masaki Ohmura
IPC分类号： G02B6/00
CPC分类号： G02B6/03694 , G02B6/02085 , G02B6/02119 , G02B6/03611
摘要： The present invention relates to an optical fiber having a structure which allows further improvements to be made both in terms of lower reflectance and narrower bandwidth, and to a fiber grating type filter including the optical fiber. The optical fiber applied to the fiber grating type filter comprises a core region extending along a predetermined axis, and a cladding region provided on an outer periphery of the core region. The core region does not contain any photosensitive dopant which contributes to predetermined wavelength light photosensitivity as a glass property, but a part of the cladding region contain such a photosensitive dopant. By means of this composition, it is possible to form a grating, which has a grating plane slanted by a predetermined angle with respect to the optical axis, in a part of the cladding region surrounding the core region.
摘要翻译：本发明涉及具有能够进一步改善低反射率和较窄带宽的结构的光纤以及包括该光纤的光纤光栅型滤光器。施加到光纤光栅型滤光器的光纤包括沿着预定轴线延伸的芯区域和设置在芯区域的外周上的包层区域。核心区域不含任何有助于作为玻璃性能的预定波长光敏性的光敏掺杂剂，但是包层区域的一部分含有这种光敏掺杂剂。通过这种组合，可以形成光栅，该光栅具有相对于光轴倾斜预定角度的光栅平面，该光栅平面围绕着核心区域的一部分包层区域。

3. 发明申请

US20050284182A1 Manufacturing method of optical fiber and optical fiber 审中-公开
标题翻译：光纤和光纤的制造方法
公开(公告)号：US20050284182A1
公开(公告)日：2005-12-29
申请号：US11102877
申请日：2005-04-11
申请人： Toshiki Taru , Shinji Ishikawa , Tetsuya Haruna , Motoki Kakui , Takahiro Murata
发明人： Toshiki Taru , Shinji Ishikawa , Tetsuya Haruna , Motoki Kakui , Takahiro Murata
IPC分类号： G02B6/00 , C03B37/012 , C03B37/027 , C03B37/075 , C03C13/04
CPC分类号： C03C13/046 , C03B37/02754 , C03B2201/10 , C03B2201/12 , C03B2201/28 , C03B2201/36 , C03B2205/14 , C03B2205/40 , C03B2205/72
摘要： There is disclosed a method of manufacturing an optical fiber whose core is made of multi-component glass without fluctuation in its outer diameter and occurrence of sudden breakage thereof, with a technique of unifying a core rod and a cladding tube at the time of drawing, and yet drawing them; and the optical fiber having a multi-component glass core are disclosed.
摘要翻译：公开了一种制造光纤的方法，该光纤的芯部由多部件玻璃制成，其外径波动并且突然断裂的发生，在拉拔时使芯棒和包层管均匀化的技术，并画画; 并且公开了具有多组分玻璃芯的光纤。

4. 发明授权

US06728458B2 Optical fiber and fiber grating device 有权
标题翻译：光纤和光纤光栅设备
公开(公告)号：US06728458B2
公开(公告)日：2004-04-27
申请号：US10082083
申请日：2002-02-26
申请人： Toshiki Taru , Shinji Ishikawa , Akira Inoue
发明人： Toshiki Taru , Shinji Ishikawa , Akira Inoue
IPC分类号： G02B622
CPC分类号： G02B6/03694 , C03B37/01413 , C03B37/01466 , C03B2201/12 , C03B2201/31 , C03B2203/18 , C03B2203/23 , G02B6/021 , G02B6/02119 , G02B6/03627
摘要： An optical fiber comprises a core region, an inner cladding region, and an outer cladding region. Each of the core region and inner cladding region is doped with GeO2, whereas the inner cladding region is also doped with F element. The core region has a refractive index higher than each of the refractive index of the inner cladding region and the refractive index of the outer cladding region. Each of the core region and inner cladding region doped with GeO2 has a UV photosensitivity. The deviation in concentration distribution of GeO2 added to the inner cladding region is so small that the deviation in UV photosensitivity in the inner cladding region is ±10% or less.
摘要翻译：光纤包括芯区域，内包层区域和外包层区域。芯区域和内包层区域均掺杂有GeO 2，而内包层区域也掺杂有F元素。芯区域的折射率高于内包层区域的折射率和外包层区域的折射率。掺杂有GeO 2的芯区域和内包层区域都具有UV光敏性。添加到内包层区域的GeO 2的浓度分布偏差如此小，使得内包层区域的紫外线光敏性的偏差为±10％以下。

5. 发明申请

US20060262387A1 Optical amplifier fiber 审中-公开
标题翻译：光放大器光纤
公开(公告)号：US20060262387A1
公开(公告)日：2006-11-23
申请号：US11434073
申请日：2006-05-16
申请人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
发明人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06716
摘要： Provided is an optical amplifier fiber in which both increasing output light power and sufficiently inhibiting the occurrence of nonlinear optical phenomenon can be compatibly achieved. In addition, an optical amplifier and light source equipment, in which such optical amplifier fiber is used, are provided. The optical amplifier fiber comprises (1) a core region doped with an aluminum element in the range of 1 wt % to 10 wt %, an erbium element in the range of 1000 wt. ppm to 5000 wt. ppm, and a fluorine element, the core region having an outer diameter in the range of 10 μm to 30 μm, and (2) a cladding region surrounding the core region and having a refractive index that is lower than the core region, wherein the relative refractive index difference of the core region relative to the cladding region is 0.3% or more and 2.0% or less.
摘要翻译：提供了可以兼容地实现增加输出光功率并充分抑制非线性光学现象的发生的光放大器光纤。此外，提供了使用这种光放大器光纤的光放大器和光源设备。光放大器光纤包括（1）掺杂有1重量％至10重量％范围的铝元素的芯区域，铒元素在1000重量％范围内。 ppm至5000wt。 ppm，以及氟元素，芯区域的外径在10μm〜30μm的范围内，（2）围绕芯区域的折射率低于芯区域的包层区域，其中，芯区域相对于包层区域的相对折射率差为0.3％以上且2.0％以下。

6. 发明授权

US07130513B2 Glass-body-producing method and optical glass body and optical fiber 有权
标题翻译：玻璃体制造方法和光学玻璃体和光纤
公开(公告)号：US07130513B2
公开(公告)日：2006-10-31
申请号：US11141203
申请日：2005-06-01
申请人： Tetsuya Haruna , Shinji Ishikawa , Toshiki Taru , Tetsutarou Katayama , Nobuyuki Taira
发明人： Tetsuya Haruna , Shinji Ishikawa , Toshiki Taru , Tetsutarou Katayama , Nobuyuki Taira
IPC分类号： G02B6/02
CPC分类号： C03B37/01807 , C03B37/01876 , C03B2201/04 , C03B2201/075 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/34 , C03B2201/36 , C03B2203/22 , C03B2207/90
摘要： A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.
摘要翻译：一种方法产生玻璃体，其在含金属氧化物的玻璃层中含有少量的OH基团，并且当玻璃体转变成光纤时，其具有由OH基导致的传输损失量减少的玻璃体。该制造方法产生光学玻璃体。光纤在其区域的至少一部分中包含用于引导光波的光学玻璃体。制造方法包括以下步骤：（a）向玻璃管内导入含有有机金属化合物和玻璃形成材料的气体; （b）将有机金属化合物分解成有机成分和金属成分; （c）加热和氧化金属成分，使得在玻璃管的内表面上沉积含有金属氧化物的玻璃颗粒，形成玻璃颗粒沉积层; 和（d）固化沉积层以形成含金属氧化物的玻璃层。

7. 发明申请

US20050244119A1 Method of manufacturing fluorine doped silica glass article, and method of manufacturing optical fiber preform and optical fiber using the method, and optical fiber made by such method 审中-公开
标题翻译：氟掺杂石英玻璃制品的制造方法以及使用该方法制造光纤预制棒和光纤的方法以及通过这种方法制成的光纤
公开(公告)号：US20050244119A1
公开(公告)日：2005-11-03
申请号：US11016937
申请日：2004-12-21
申请人： Takashi Sasaki , Shinji Ishikawa , Toshiki Taru
发明人： Takashi Sasaki , Shinji Ishikawa , Toshiki Taru
IPC分类号： C03B37/01 , C03B19/14 , C03B37/014 , G02B6/02
CPC分类号： C03C13/045 , C03B19/1453 , C03B37/01446 , C03B2201/12 , C03B2201/20 , C03C2201/11 , C03C2201/12 , C03C2203/54
摘要： Provided are an optical fiber which exhibits a small increment of loss due to the OH group and which is suitable for transmitting signals in a band including a wavelength of 1,380 nm, and methods for manufacturing such optical fiber, an optical fiber preform, and a fluorine doped silica glass article. The fluorine doped silica glass article is produced by (1) depositing silica glass soot on a starting substrate to produce a silica glass soot deposit body and (2) heating the silica glass soot deposit body in an atmosphere including at least a first gas containing fluorine atoms and a second gas having deoxidizing property and containing no fluorine atom nor hydrogen atom. An optical fiber preform and an optical fiber are produced by the use of this glass body. The optical fiber has a clad containing fluorine and exhibits a transmission loss of 0.32 dB/km or less at a wavelength of 1,380 nm.
摘要翻译：本发明提供一种光纤，该光纤由OH基引起的损耗增加小，适用于在包括1380nm波长的波段的信号中传输信号，以及制造这种光纤，光纤预制棒和氟的方法掺杂石英玻璃制品。氟掺杂石英玻璃制品通过（1）在起始衬底上沉积二氧化硅玻璃烟炱以制备石英玻璃烟灰沉积体并且（2）在至少包含含氟的第一气体的气氛中加热二氧化硅玻璃烟灰沉积体原子和具有脱氧性的第二气体，不含氟原子也不含氢原子。通过使用该玻璃体制造光纤预制件和光纤。该光纤具有含氟的包层，在1,380nm的波长下表现出0.32dB / km以下的传输损耗。

8. 发明申请

US20050276555A1 Glass-body-producing method and optical glass body and optical fiber 有权
标题翻译：玻璃体制造方法和光学玻璃体和光纤
公开(公告)号：US20050276555A1
公开(公告)日：2005-12-15
申请号：US11141203
申请日：2005-06-01
申请人： Tetsuya Haruna , Shinji Ishikawa , Toshiki Taru , Tetsutarou Katayama , Nobuyuki Taira
发明人： Tetsuya Haruna , Shinji Ishikawa , Toshiki Taru , Tetsutarou Katayama , Nobuyuki Taira
IPC分类号： G02B6/02 , C03B37/018
CPC分类号： C03B37/01807 , C03B37/01876 , C03B2201/04 , C03B2201/075 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/34 , C03B2201/36 , C03B2203/22 , C03B2207/90
摘要： A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.
摘要翻译：一种方法产生玻璃体，其在含金属氧化物的玻璃层中含有少量的OH基团，并且当玻璃体转变成光纤时，其具有由OH基导致的传输损失量减少的玻璃体。该制造方法产生光学玻璃体。光纤在其区域的至少一部分中包含用于引导光波的光学玻璃体。制造方法包括以下步骤：（a）向玻璃管内导入含有有机金属化合物和玻璃形成材料的气体; （b）将有机金属化合物分解成有机成分和金属成分; （c）加热和氧化金属成分，使得在玻璃管的内表面上沉积含有金属氧化物的玻璃颗粒，形成玻璃颗粒沉积层; 和（d）固结沉积层以形成含金属氧化物的玻璃层。

9. 发明授权

US06785444B2 Optical fiber grating device 失效
标题翻译：光纤光栅装置
公开(公告)号：US06785444B2
公开(公告)日：2004-08-31
申请号：US10129276
申请日：2002-10-01
申请人： Shinji Ishikawa , Masakazu Shigehara , Michiko Takushima , Tadashi Enomoto
发明人： Shinji Ishikawa , Masakazu Shigehara , Michiko Takushima , Tadashi Enomoto
IPC分类号： G02B634
CPC分类号： G02B6/021 , G02B6/02095 , G02B6/03633
摘要： An optical fiber grating device 1 is a device in which a long period grating 14 is formed in a core region 11 of an optical fiber 10 consisting of the core region 11 having a refractive index n1 and an outside diameter 2a, a first cladding region 12 surrounding the core region 11 and having a refractive index n2 and an outside diameter 2b, and a second cladding region 13 surrounding the first cladding region 12 and having a refractive index n3 and an outside diameter 2c. There is a magnitude relation of n1>n2>n3 among the refractive index n1 of the core region 11, the refractive index n2 of the first cladding region 12, and the refractive index n3 of the second cladding region 13, a relative refractive index difference &Dgr;n2 of the first cladding region 12 to the second cladding region 13 is not less than 0.5%, and a thickness (c−b) of the second cladding region 13 with respect to a transmission loss peak wavelength &lgr; is in a range of not less than &lgr; nor more than 10&lgr;.
摘要翻译：光纤光栅装置1是在由具有折射率n1和外径2a的纤芯区域11构成的光纤10的芯部区域11中形成长周期光栅14的装置，第一包层区域12 围绕芯区域11并具有折射率n2和外径2b，以及围绕第一包层区域12并具有折射率n3和外径2c的第二包层区域13。在芯区域11的折射率n1，第一包层区域12的折射率n2和第二包层区域13的折射率n3之间存在n1> n2> n3的大小关系，相对折射率差第一包层区域12到第二包层区域13的Deltan2不小于0.5％，第二包层区域13相对于透射损耗峰值波长λ的厚度（cb）在不小于λ的范围内也不超过10lambda。

10. 发明授权

US06292607B1 Method for determining an aging condition for an optical waveguide grating and temperature sensor 有权
标题翻译：用于确定光波导光栅和温度传感器的老化条件的方法
公开(公告)号：US06292607B1
公开(公告)日：2001-09-18
申请号：US09343472
申请日：1999-06-30
申请人： Shinji Ishikawa , Toru Iwashima , Michiko Takushima (nee Harumoto) , Akira Inoue , Masakazu Shigehara
发明人： Shinji Ishikawa , Toru Iwashima , Michiko Takushima (nee Harumoto) , Akira Inoue , Masakazu Shigehara
IPC分类号： G02B634
CPC分类号： G02B6/02185
摘要： The present invention provides a method for determining a condition of aging for an optical waveguide grating. In this method, the aged deterioration curve of the optical waveguide grating is set as a form of C·t−&agr;, where t represents time, and &agr; and C represent parameters. Then, the condition of the aging is determined based on the aged deterioration curve.
摘要翻译：本发明提供了一种用于确定光波导光栅的老化状况的方法。在该方法中，将光波导光栅的老化劣化曲线设定为C.t-α的形式，其中t表示时间，α和C表示参数。然后，根据老化退化曲线确定老化条件。

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