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1. 发明授权

US06876791B2 Diffraction grating device 有权
$Diffraction grating device$
标题翻译：衍射光栅装置
公开(公告)号：US06876791B2
公开(公告)日：2005-04-05
申请号：US10184105
申请日：2002-06-28
申请人： Kiyotaka Murashima , Ken Hashimoto , Toru Iwashima
发明人： Kiyotaka Murashima , Ken Hashimoto , Toru Iwashima
IPC分类号： G02B6/02 , G02B6/12 , G02B6/124 , G02B6/34
CPC分类号： G02B6/124 , G02B6/02085 , G02B6/021 , G02B6/02138 , G02B6/12007 , G02B2006/12107
摘要： In a diffraction grating device (1), index modulations are formed along the longitudinal direction of an optical fiber (10) serving as an optical waveguide. The optical fiber (10) has a core region (11), an inner cladding region (12), and an outer cladding region (13) sequentially from the optical axis center. Index modulations are formed in both the core region (11) and the inner cladding region (12) of the optical fiber (10) in each of a plurality of regions A1 to AN (N is an integer; N≧2) separated from each other along the longitudinal direction of the optical fiber (10). In the diffraction grating device (1), regions An (n=1 to N) in which index modulations are formed in both the core region (11) and the inner cladding region (12) and regions Bn (n=1 to N−1) in which no index modulations are formed alternately exist along the longitudinal direction.
摘要翻译：在衍射光栅装置（1）中，沿着用作光波导的光纤（10）的纵向形成指数调制。光纤（10）从光轴中心顺序地具有芯区域（11），内包层区域（12）和外包层区域（13）。在多个区域A1至AN（N为整数; N> = 2）中的每一个区域中，在光纤（10）的芯区域（11）和内包层区域（12）两者中形成索引调制彼此沿着光纤（10）的纵向方向。在衍射光栅装置（1）中，在核心区域（11）和内部包层区域（12）和区域Bn（n = 1〜N）中形成指数调制的区域An（n = 1〜N） 1）其中不形成指数调制沿纵向方向交替存在。

2. 发明授权

US06483955B2 Diffraction grating device 失效
$Diffraction grating device$
标题翻译：衍射光栅装置
公开(公告)号：US06483955B2
公开(公告)日：2002-11-19
申请号：US09799354
申请日：2001-03-06
申请人： Manabu Shiozaki , Toru Iwashima , Masakazu Shigehara , Kiyotaka Murashima
发明人： Manabu Shiozaki , Toru Iwashima , Masakazu Shigehara , Kiyotaka Murashima
IPC分类号： G02F1295
CPC分类号： G02B6/0208
摘要： This invention relates to a diffraction grating device having a refractive index modulation formed in an optical waveguide region in a predetermined region in the longitudinal direction of the optical waveguide. In the diffraction grating device, a refractive index modulation is formed in the core region in a predetermined region in the longitudinal direction of the optical waveguide. In this diffraction grating device, the optical period of the refractive index modulation is substantially constant, the phase of the refractive index modulation is inverted at a phase inversion portion, and the number of phase inversion portions is one or two. In this diffraction grating device, the absolute value of a parameter R (equation (22a)) is smaller than 0.25. According to this invention, a diffraction grating device capable of shortening the region where the refractive index modulation is formed and flattening the reflectance characteristic in the reflection wavelength band is provided.
摘要翻译：本发明涉及一种衍射光栅装置，其具有在光波导的纵向方向上的预定区域中的光波导区域中形成的折射率调制。在衍射光栅装置中，在光波导的长度方向的规定区域的芯部区域形成折射率调制。在该衍射光栅装置中，折射率调制的光学周期基本上是恒定的，折射率调制的相位在相位反转部分反转，相位反转部分的数量是一个或两个。在该衍射光栅装置中，参数R（式（22a））的绝对值小于0.25。根据本发明，提供了能够缩短形成折射率调制区域并使反射波长带的反射特性变平的衍射光栅装置。

3. 发明授权

US06804437B2 Diffraction grating device manufacturing method, diffraction grating device manufacturing apparatus, and diffraction grating device 失效
$Diffraction grating device manufacturing method, diffraction grating device manufacturing apparatus, and diffraction grating device$
标题翻译：衍射光栅装置制造方法，衍射光栅装置制造装置和衍射光栅装置
公开(公告)号：US06804437B2
公开(公告)日：2004-10-12
申请号：US10377665
申请日：2003-03-04
申请人： Kiyotaka Murashima , Ken Hashimoto , Toshikazu Shibata , Akira Inoue , Masaki Ohmura , Masakazu Shigehara
发明人： Kiyotaka Murashima , Ken Hashimoto , Toshikazu Shibata , Akira Inoue , Masaki Ohmura , Masakazu Shigehara
IPC分类号： G02B634
CPC分类号： G02B6/03694 , G02B6/02119 , G02B6/02138 , G02B6/02152
摘要： In this diffraction grating device manufacturing method, refractive-index-change-inducing light of a wavelength that induces a change in refractive index is irradiated onto an optical waveguide, thus forming a diffraction grating through refractive index modulation along the longitudinal direction of the optical waveguide. At this time, the position of irradiation of the refractive-index-change-inducing light onto the optical waveguide is swung in a direction perpendicular to the longitudinal direction of the optical waveguide.
摘要翻译：在该衍射光栅装置的制造方法中，将引起折射率变化的波长的折射率变换感应光照射到光波导上，由此沿着光波导的长度方向形成折射率调制衍射光栅。此时，将折射率变化诱导光照射到光波导上的位置在垂直于光波导的纵向方向上摆动。

4. 发明申请

US20120251068A1 OPTICAL FIBER HOLDER AND METHOD FOR HOLDING COATED OPTICAL FIBER 有权
标题翻译：光纤保持器和用于保持涂覆的光纤的方法
公开(公告)号：US20120251068A1
公开(公告)日：2012-10-04
申请号：US13513454
申请日：2010-12-17
申请人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
发明人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
IPC分类号： B23Q3/00
CPC分类号： G02B6/2553 , G02B6/245 , G02B6/2555 , G02B6/3616 , G02B6/4471
摘要： An optical fiber holder includes a holder main body and cord receiving groove. The holder main body has a fiber receiving groove and a first cord receiving groove. The fiber receiving groove receives and positions a coated optical fiber of an optical fiber cord with a cord jacket removed at the tip of the optical fiber cord. The cord receiving groove receives the cord jacket. A cord holding cover and a fiber pressing cover 13 are attached to the holder main body 6 for movement between respective open closed positions. The cord holder cover includes a second cord receiving groove that cooperates with the first cord receiving groove to form an insertion through hole having a circular cross-section that allows for insertion of the optical fiber. The fiber pressing cover presses the coated optical fiber against the holder main body with the coated optical fiber in the fiber receiving groove.
摘要翻译：光纤保持器包括保持器主体和电缆接收槽。保持器主体具有光纤接收槽和第一电线接收槽。光纤接收槽接收并定位光纤线的涂覆光纤，并在光纤线的末端除去电线护套。电线接收槽接收电缆护套。帘线保持盖和纤维按压盖13安装在保持器主体6上，以在相应的打开关闭位置之间移动。帘线保持器盖包括与第一帘线接收槽配合的第二帘线容纳槽，以形成具有允许插入光纤的圆形横截面的插入通孔。纤维压盖将涂覆的光纤压靠在保持器主体上，其中涂覆光纤在光纤接收槽中。

5. 发明授权

US08641300B2 Spliced optical cable assembly 有权
标题翻译：拼接光缆组件
公开(公告)号：US08641300B2
公开(公告)日：2014-02-04
申请号：US13501728
申请日：2010-10-01
申请人： Kiyotaka Murashima , Hiroyasu Toyooka , Toshihiko Homma , Ryuichiro Sato , Keitaro Iwai
发明人： Kiyotaka Murashima , Hiroyasu Toyooka , Toshihiko Homma , Ryuichiro Sato , Keitaro Iwai
IPC分类号： G02B6/255
CPC分类号： G02B6/2558
摘要： A spliced optical cable assembly is reinforced at a spliced portion of coated optical fibers to have adequate strength. The spliced optical cable assembly includes: a pair of optical fiber cables in which high-strength fibers are aligned in the longitudinal direction around coated optical fibers. The outer circumference of the coated optical fibers being covered by sheaths. The spliced optical cable assembly further includes a connecting portion in which the pair of optical fiber cables are connected and the coated optical fibers extend from the sheaths. Glass fibers exposed from the coating of the coated optical fibers spliced to each other. The connected portion is covered and formed into an integral unit, together with the high-strength fibers exposed from the sheaths, by a reinforcing tube placed over the optical fiber cables and caused to contract so that both ends of the reinforcing tube engage the sheaths of the respective optical fiber cables.
摘要翻译：拼接的光缆组件在涂覆的光纤的拼接部分处被加强以具有足够的强度。拼接光缆组件包括：一对光纤电缆，其中高强度纤维沿着围绕涂覆光纤的纵向排列。被覆光纤的外周被护套覆盖。接合光缆组件还包括连接部分，在该连接部分中，一对光纤电缆连接在一起，并且涂覆的光纤从护套延伸。从被覆光纤的涂层露出的玻璃纤维彼此接合。连接部分被覆盖并形成为与护套暴露的高强度纤维一体的单元，通过放置在光纤电缆上的加强管并使其收缩，使得加强管的两端与相应的光纤电缆。

6. 发明授权

US06775055B2 Raman amplifier 失效
标题翻译：拉曼放大器
公开(公告)号：US06775055B2
公开(公告)日：2004-08-10
申请号：US09908853
申请日：2001-07-20
申请人： Tetsufumi Tsuzaki , Kiyotaka Murashima
发明人： Tetsufumi Tsuzaki , Kiyotaka Murashima
IPC分类号： H01S300
CPC分类号： H04B10/2916
摘要： Raman amplification pumping light output from a pumping light source unit is supplied to a Raman amplification optical fiber through an optical circulator. The remaining Raman amplification pumping light is detected by a light-receiving element through an optical circulator and bandpass filter. Signal light that has reached a Raman amplifier propagates through the Raman amplification optical fiber while being Raman-amplified. A control section controls the power or spectral shape of Raman amplification pumping light output from each of N pumping light sources included in the pumping light source unit on the basis of the power of the remaining Raman amplification pumping light, which is detected by the light-receiving element. Hence, a Raman amplifier capable of easily controlling gain spectrum flattening in the signal light wavelength band can be obtained.
摘要翻译：从泵浦光源单元输出的拉曼放大泵浦光通过光循环器提供给拉曼放大光纤。剩余的拉曼放大泵浦光由光接收元件通过光环行器和带通滤波器检测。已经到达拉曼放大器的信号光在拉曼放大的同时传播通过拉曼放大光纤。控制部分根据剩余的拉曼放大泵浦光的功率来控制从泵浦光源单元中包括的N个泵浦光源中的每一个输出的拉曼放大泵浦光的功率或光谱形状，接收元件。因此，可以获得能够容易地控制信号光波长带中的增益谱平坦化的拉曼放大器。

7. 发明授权

US08861920B2 Optical fiber holder and method for holding coated optical fiber 有权
标题翻译：光纤夹持器和保持涂层光纤的方法
公开(公告)号：US08861920B2
公开(公告)日：2014-10-14
申请号：US13513454
申请日：2010-12-17
申请人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
发明人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
IPC分类号： G02B6/36 , G02B6/44 , G02B6/255 , G02B6/245
CPC分类号： G02B6/2553 , G02B6/245 , G02B6/2555 , G02B6/3616 , G02B6/4471
摘要： An optical fiber holder includes a holder main body and cord receiving groove. The holder main body has a fiber receiving groove and a first cord receiving groove. The fiber receiving groove receives and positions a coated optical fiber of an optical fiber cord with a cord jacket removed at the tip of the optical fiber cord. The cord receiving groove receives the cord jacket. A cord holding cover and a fiber pressing cover 13 are attached to the holder main body 6 for movement between respective open closed positions. The cord holder cover includes a second cord receiving groove that cooperates with the first cord receiving groove to form an insertion through hole having a circular cross-section that allows for insertion of the optical fiber. The fiber pressing cover presses the coated optical fiber against the holder main body with the coated optical fiber in the fiber receiving groove.
摘要翻译：光纤保持器包括保持器主体和电缆接收槽。保持器主体具有光纤接收槽和第一电线接收槽。光纤接收槽接收并定位光纤线的涂覆光纤，并在光纤线的末端除去电线护套。电线接收槽接收电缆护套。帘线保持盖和纤维按压盖13安装在保持器主体6上，以在相应的打开关闭位置之间移动。帘线保持器盖包括与第一帘线接收槽配合的第二帘线容纳槽，以形成具有允许插入光纤的圆形横截面的插入通孔。纤维压盖将涂覆的光纤压靠在保持器主体上，其中涂覆光纤在光纤接收槽中。

8. 发明授权

US07313293B2 Optical power monitoring apparatus, optical power monitoring method, and light receiving device 有权
标题翻译：光功率监测装置，光功率监测方法和光接收装置
公开(公告)号：US07313293B2
公开(公告)日：2007-12-25
申请号：US11076018
申请日：2005-03-10
申请人： Kiyotaka Murashima , Akira Inoue , Takeo Komiya
发明人： Kiyotaka Murashima , Akira Inoue , Takeo Komiya
IPC分类号： G02B6/12
CPC分类号： G02B6/4203 , G02B6/4206 , G02B6/4207 , G02B6/4249
摘要： An optical power monitoring apparatus according to an aspect of the present invention has an input optical waveguide, a light receiver, and an output optical waveguide. The input optical waveguide has a light entrance end and a light exit end. The input optical waveguide accepts light from the exterior through the light entrance end and outputs the light from the light exit end. The light receiver absorbs part of the light from the light exit end of the input optical waveguide and transmits the other part of the light. The output optical waveguide has a light entrance end and a light exit end. The output optical waveguide accepts the light transmitted by the light receiver, through the light entrance end, and outputs the light from the light exit end. The light receiver is provided on an optical path from the light exit end of the input optical waveguide to the light entrance end of the output optical waveguide.
摘要翻译：根据本发明的一个方面的光功率监测装置具有输入光波导，光接收器和输出光波导。输入光波导具有光入射端和光出射端。输入光波导通过光入射端从外部接收光，并从光出射端输出光。光接收器从输入光波导的光出射端吸收一部分光，并透射光的另一部分。输出光波导具有光入射端和光出射端。输出光波导通过光入射端接收由光接收器透射的光，并输出来自光出射端的光。光接收器设置在从输入光波导的光出射端到输出光波导的光入射端的光路上。

9. 发明申请

US20050232534A1 Optical power monitoring apparatus, optical power monitoring method, and light receiving device 有权
标题翻译：光功率监测装置，光功率监测方法和光接收装置
公开(公告)号：US20050232534A1
公开(公告)日：2005-10-20
申请号：US11076018
申请日：2005-03-10
申请人： Kiyotaka Murashima , Akira Inoue , Takeo Komiya
发明人： Kiyotaka Murashima , Akira Inoue , Takeo Komiya
IPC分类号： G02B6/10 , G02B6/12 , G02B6/42 , H04B10/02
CPC分类号： G02B6/4203 , G02B6/4206 , G02B6/4207 , G02B6/4249
摘要： An optical power monitoring apparatus according to an aspect of the present invention has an input optical waveguide, a light receiver, and an output optical waveguide. The input optical waveguide has a light entrance end and a light exit end. The input optical waveguide accepts light from the exterior through the light entrance end and outputs the light from the light exit end. The light receiver absorbs part of the light from the light exit end of the input optical waveguide and transmits the other part of the light. The output optical waveguide has a light entrance end and a light exit end. The output optical waveguide accepts the light transmitted by the light receiver, through the light entrance end, and outputs the light from the light exit end. The light receiver is provided on an optical path from the light exit end of the input optical waveguide to the light entrance end of the output optical waveguide.
摘要翻译：根据本发明的一个方面的光功率监测装置具有输入光波导，光接收器和输出光波导。输入光波导具有光入射端和光出射端。输入光波导通过光入射端从外部接收光，并从光出射端输出光。光接收器从输入光波导的光出射端吸收一部分光，并透射光的另一部分。输出光波导具有光入射端和光出射端。输出光波导通过光入射端接收由光接收器透射的光，并输出来自光出射端的光。光接收器设置在从输入光波导的光出射端到输出光波导的光入射端的光路上。

10. 发明申请

US20120243838A1 REINFORCING MEMBER FOR OPTICAL FIBER FUSION-SPLICING PORTION AND REINFORCING METHOD THEREFOR 审中-公开
标题翻译：用于光纤熔融分离部分的增强部件及其加固方法
公开(公告)号：US20120243838A1
公开(公告)日：2012-09-27
申请号：US13511859
申请日：2010-11-25
申请人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
发明人： Ryuichiro Sato , Hiroyasu Toyooka , Toshihiko Homma , Kiyotaka Murashima
IPC分类号： G02B6/255
CPC分类号： G02B6/2558
摘要： A reinforcing member of optical fiber fusion-splicing portion and a reinforcing method thereof are provided, in which plural coated optical fibers can be collectively reinforced in the high density, and a heating mechanism for collective reinforcement can be configured at a low cost. A reinforcing member 12 which reinforces collectively fusion-splicing portions 12a of plural coated optical fibers 11 includes a heat-shrinkable tube 13, a rod-shaped tensile strength member 14 arranged so that a part of its surface comes into contact with an inner surface of the heat-shrinkable tube, and plural tube-shaped heat-fusible adhesive members 15 arranged in the heat-shrinkable tube and into which the fusion-splicing portions of the single-core coated optical fibers are individually inserted. All of the plural tube-shaped heat-fusible adhesive members 15 are arranged in one of space portions formed between the tensile strength body 14 and the heat-shrinkable tube.
摘要翻译：提供了一种光纤熔接部分的加强部件及其增强方法，其中可以以高密度共同加强多根涂覆光纤，并且可以以低成本构造用于集体加固的加热机构。加强多个涂覆光纤11的熔接部分12a的加强件12包括热收缩管13，杆状拉伸强度部件14，其布置成使得其表面的一部分与热收缩管和布置在热收缩管中并且单芯涂覆光纤的熔接部分单独插入的多个管状热熔粘合部件15。所有多个管状热熔粘合剂构件15布置在形成在拉伸强度体14和热收缩管之间的空间部分之一中。

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