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1. 发明授权

US06317538B1 Optical waveguide device and optical device having long-period grating 失效
标题翻译：具有长周期光栅的光波导器件和光学器件
公开(公告)号：US06317538B1
公开(公告)日：2001-11-13
申请号：US09206705
申请日：1998-12-07
申请人： Masakazu Shigehara , Masayuki Shigematsu , Motoki Kakui
发明人： Masakazu Shigehara , Masayuki Shigematsu , Motoki Kakui
IPC分类号： G02B634
CPC分类号： G02B6/0218 , G02B6/0208 , G02B6/02095
摘要： The present invention relates to an optical waveguide device having a plurality of long-period gratings, and an optical device equipped with the optical waveguide device. By providing a plurality of long-period gratings having loss wavelength characteristics different from each other, which fluctuate along with an environmental condition such as temperature or tension, within a core region of an optical waveguide device, the present invention enables the loss wavelength characteristic of the whole optical waveguide device to be regulated in response to the environmental change.
摘要翻译：本发明涉及具有多个长周期光栅的光波导器件，以及配备有该光波导器件的光学器件。通过提供多个具有彼此不同的损耗波长特性的长周期光栅，其与光波导器件的芯区域内的环境条件如温度或张力一起波动，本发明能够实现波长特性的损失整个光波导器件将根据环境变化进行调节。

2. 发明授权

US07079311B2 Optical amplifier and optical communication system including the same 失效
公开(公告)号：US07079311B2
公开(公告)日：2006-07-18
申请号：US10978473
申请日：2004-11-02
申请人： Motoki Kakui , Masakazu Shigehara
发明人： Motoki Kakui , Masakazu Shigehara
IPC分类号： H01S3/14
CPC分类号： H04B10/2941
摘要： The present invention relates to an optical amplifier (TDFA) having a configuration which enables to reduce temperature dependence of the gain with reduced power consumption and simple control. The optical amplifier includes, in the order from an input port to an output port, an optical isolator, an optical coupler, an optical amplification fiber, an optical coupler, an optical isolator, an optical gain equalizing filter, a variable optical attenuator, an optical isolator, an optical coupler, an amplification fiber, an optical coupler, and an optical isolator. At least a core region of the optical amplification fiber is doped with Tm element, and signal light in a predetermined wavelength range is amplified by supply of pumping light. The gain equalizing fiber has a loss spectrum which shifts toward the short wavelength side as the temperature of the optical waveguide is higher, thereby equalizing the optical amplification gain of the signal light in the optical amplification fiber.

3. 发明授权

US6144784A Optical input/output module and light-reflecting device 失效
标题翻译：光输入/输出模块和光反射装置
公开(公告)号：US6144784A
公开(公告)日：2000-11-07
申请号：US209419
申请日：1998-12-11
申请人： Masakazu Shigehara , Shinji Ishikawa , Motoki Kakui , Hiroo Kanamori , Masayuki Nishimura
发明人： Masakazu Shigehara , Shinji Ishikawa , Motoki Kakui , Hiroo Kanamori , Masayuki Nishimura
IPC分类号： G02F1/31 , G02B6/293 , G02B6/34 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02 , G02B6/28
CPC分类号： G02B6/2932 , G02B6/29383 , H04J14/0201
摘要： The present invention relates to an optical I/O module and light-reflecting device comprising a structure excellent in expandability having a high degree of freedom in designing. The optical I/O module according to the present invention comprises a directional coupler having, at least, input and output ports for constituting a part of a transmission line and an intermediate port for constituting a branch; and a light-reflecting device, optically connected to the intermediate port, for transmitting therethrough a specific wavelength. This structure can realize various configurations which allow a specific wavelength to be dropped from the transmission line and to be added to the transmission line, without influencing the configuration of the transmission line.
摘要翻译：本发明涉及一种光学I / O模块和光反射装置，其包括在设计中具有高自由度的可扩展性优异的结构。根据本发明的光I / O模块包括定向耦合器，至少具有用于构成传输线的一部分的输入和输出端口以及用于构成分支的中间端口; 以及光反射装置，光学连接到中间端口，用于透射特定波长。该结构可以实现允许特定波长从传输线路丢弃并被添加到传输线路的各种配置，而不影响传输线路的配置。

4. 发明申请

US20050078357A1 Optical amplifier and optical communication system including the same 失效
标题翻译：光放大器和光通信系统包括相同
公开(公告)号：US20050078357A1
公开(公告)日：2005-04-14
申请号：US10978473
申请日：2004-11-02
申请人： Motoki Kakui , Masakazu Shigehara
发明人： Motoki Kakui , Masakazu Shigehara
IPC分类号： G02B6/00 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/00
CPC分类号： H04B10/2941
摘要： The present invention relates to an optical amplifier (TDFA) having a configuration which enables to reduce temperature dependence of the gain with reduced power consumption and simple control. The optical amplifier includes, in the order from an input port to an output port, an optical isolator, an optical coupler, an optical amplification fiber, an optical coupler, an optical isolator, an optical gain equalizing filter, a variable optical attenuator, an optical isolator, an optical coupler, an amplification fiber, an optical coupler, and an optical isolator. At least a core region of the optical amplification fiber is doped with Tm element, and signal light in a predetermined wavelength range is amplified by supply of pumping light. The gain equalizing fiber has a loss spectrum which shifts toward the short wavelength side as the temperature of the optical waveguide is higher, thereby equalizing the optical amplification gain of the signal light in the optical amplification fiber.
摘要翻译：本发明涉及一种光放大器（TDFA），其具有能够以降低的功耗和简单的控制来降低增益的温度依赖性的结构。光放大器按照从输入端口到输出端口的顺序包括光隔离器，光耦合器，光放大光纤，光耦合器，光隔离器，光增益均衡滤波器，可变光衰减器，光隔离器，光耦合器，放大光纤，光耦合器和光隔离器。光放大光纤的至少核心区域掺杂有Tm元件，并且通过提供泵浦光来放大预定波长范围的信号光。增益均衡光纤具有随着光波导的温度较高而向短波长侧移动的损耗谱，从而使光放大光纤中的信号光的光放大增益均衡。

5. 发明授权

US06867907B2 Pumping light source unit, raman amplifier, and optical transmission system 失效
标题翻译：泵浦光源单元，拉曼放大器和光传输系统
公开(公告)号：US06867907B2
公开(公告)日：2005-03-15
申请号：US10183366
申请日：2002-06-28
申请人： Masayuki Inoue , Motoki Kakui , Masakazu Shigehara
发明人： Masayuki Inoue , Motoki Kakui , Masakazu Shigehara
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/30 , H01S5/14 , H01S3/00
CPC分类号： H04B10/2916 , H01S3/06754 , H01S3/094096 , H01S3/1003 , H01S3/302 , H01S5/146
摘要： The present invention relates to a pumping light source unit for Raman amplification and the like comprising a structure for improving the pumping light spectrum controllability so as to enable output signal light spectrum adjustment within an amplification wavelength band. The pumping light source unit comprises N (≧2) pumping light sources for outputting N channels of pumping light having respective wavelengths different from each other, a multiplexer for multiplexing the N channels of pumping light, and an output structure for supplying a Raman amplification optical fiber with the pumping light outputted from the multiplexer. In particular, at least one of the N pumping light sources includes a variable length pumping light source adapted to change the channel wavelength of pumping light outputted therefrom. This configuration makes it possible to adjust pumping light spectra, thereby improving the controllability of output signal light spectra (Raman gain spectra).
摘要翻译：本发明涉及一种用于拉曼放大等的泵浦光源单元，其包括用于提高泵浦光谱可控性的结构，以使得能够在放大波长带内进行输出信号光谱调节。泵浦光源单元包括N（> = 2）个泵浦光源，用于输出具有彼此不同的波长的N个泵浦光的通道;多路复用器，用于多路复用N个通道的泵浦光;以及输出结构，用于提供拉曼放大具有从多路复用器输出的泵浦光的光纤。特别地，N个抽运光源中的至少一个包括适于改变从其输出的泵浦光的通道波长的可变长度的泵浦光源。该配置使得可以调节泵浦光谱，从而提高输出信号光谱（拉曼增益光谱）的可控性。

6. 发明授权

US06819482B2 Optical amplifier and optical communication system including the same 失效
标题翻译：光放大器和光通信系统包括相同
公开(公告)号：US06819482B2
公开(公告)日：2004-11-16
申请号：US10292633
申请日：2002-11-13
申请人： Motoki Kakui , Masakazu Shigehara
发明人： Motoki Kakui , Masakazu Shigehara
IPC分类号： H01S300
CPC分类号： H04B10/2941
摘要： The present invention relates to an optical amplifier (TDFA) having a configuration which enables to reduce temperature dependence of the gain with reduced power consumption and simple control. The optical amplifier includes, in the order from an input port to an output port, an optical isolator, an optical coupler, an optical amplification fiber, an optical coupler, an optical isolator, an optical gain equalizing filter, a variable optical attenuator, an optical isolator, an optical coupler, an amplification fiber, an optical coupler, and an optical isolator. At least a core region of the optical amplification fiber is doped with Tm element, and signal light in a predetermined wavelength range is amplified by supply of pumping light. The gain equalizing fiber has a loss spectrum which shifts toward the short wavelength side as the temperature of the optical waveguide is higher, thereby equalizing the optical amplification gain of the signal light in the optical amplification fiber.
摘要翻译：本发明涉及一种光放大器（TDFA），其具有能够以降低的功耗和简单的控制来降低增益的温度依赖性的结构。光放大器按照从输入端口到输出端口的顺序包括光隔离器，光耦合器，光放大光纤，光耦合器，光隔离器，光增益均衡滤波器，可变光衰减器，光隔离器，光耦合器，放大光纤，光耦合器和光隔离器。光放大光纤的至少核心区域掺杂有Tm元件，并且通过提供泵浦光来放大预定波长范围的信号光。增益均衡光纤具有随着光波导的温度较高而向短波长侧移动的损耗谱，从而使光放大光纤中的信号光的光放大增益均衡。

7. 发明授权

US06490078B2 Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser 有权
标题翻译：光放大器光纤，光纤放大器和光纤激光器
公开(公告)号：US06490078B2
公开(公告)日：2002-12-03
申请号：US09809301
申请日：2001-03-16
申请人： Tadashi Enomoto , Masahiro Takagi , Yuichi Ohga , Motoki Kakui , Shinji Ishikawa , Masakazu Shigehara , Shinji Endo
发明人： Tadashi Enomoto , Masahiro Takagi , Yuichi Ohga , Motoki Kakui , Shinji Ishikawa , Masakazu Shigehara , Shinji Endo
IPC分类号： G02B634
CPC分类号： H01S3/06708 , H01S3/06716 , H01S3/06729 , H01S3/06754
摘要： The present invention relates to an OFA having a high signal gain, easily manufactured, having a high mechanical strength, having a small splice loss with respect to other optical fibers, and rarely encountering the occurrence of noise at a signal wavelength. The OFA according to the present invention has a function of amplifying signals propagating therethroug by pumping light supplied thereto, and comprises, at least, a core region, an inner cladding region provided on the periphery of the core region, an outer cladding region provided on the periphery of the inner cladding region, and one or more node coupling gratings. An element for signal amplification is added to at least the core region. The core region has a structure ensuring a core mode with respect to the signals, while the inner cladding region has a structure ensuring a multi-mode with respect to the pumping light. Each of the mode coupling gratings passes core mode signals therethrough, and induces a mode coupling between the inner cladding mode and the core mode with respect to the pumping light.
摘要翻译：本发明涉及具有高机械强度，易于制造的具有高信号增益，相对于其它光纤具有小的接合损耗，并且很少遇到在信号波长处的噪声的发生的OFA。根据本发明的OFA具有通过泵送供给到其上的光来传播传播的信号的功能，并且至少包括芯区域，设置在芯区域周围的内包层区域，设置在芯区域内包层区域的周边，以及一个或多个节点耦合光栅。用于信号放大的元件至少加到核心区域。芯区域具有确保相对于信号的芯模式的结构，而内包层区域具有确保相对于泵浦光的多模式的结构。每个模式耦合光栅通过芯模信号，并且相对于泵浦光在内包层模式和芯模之间引起模耦合。

8. 发明授权

US06415078B1 Laser light source and manufacturing method therefor 失效
标题翻译：激光光源及其制造方法
公开(公告)号：US06415078B1
公开(公告)日：2002-07-02
申请号：US08633522
申请日：1996-04-17
申请人： Masakazu Shigehara , Masayuki Shigematsu , Takashi Kato
发明人： Masakazu Shigehara , Masayuki Shigematsu , Takashi Kato
IPC分类号： G02B634
CPC分类号： G02B6/3861 , G02B6/02171 , G02B6/02209 , G02B6/3845 , G02B6/4203 , G02B6/4204 , G02B6/4207 , G02B6/4225 , G02B6/4237 , G02B6/4238 , H01S5/02284 , H01S5/147
摘要： In a method of manufacturing a laser light source according to the present invention, an optical fiber having a diffraction grating is produced in which a plurality of refractive index changing portions are formed along the direction of an optical axis of the optical fiber. Then, the optical fiber having the diffraction grating is inserted into a ferrule, the optical fiber is bonded thereat, and the end surface of the ferrule is ground. Further, a laser oscillating device is prepared, and the laser oscillating device is coupled with the optical fiber having the diffraction grating and being inserted in the ferrule.
摘要翻译：在根据本发明的激光光源的制造方法中，制造了具有衍射光栅的光纤，其中沿着光纤的光轴方向形成有多个折射率变化部。然后，将具有衍射光栅的光纤插入到套圈中，将光纤接合在其上，并且将套圈的端面研磨。此外，制备激光振荡装置，并且激光振荡装置与具有衍射光栅的光纤耦合并插入到套圈中。

9. 发明授权

US6067392A Optical fiber diffraction grating, a method of fabricating thereof and a laser light source 失效
$Optical fiber diffraction grating, a method of fabricating thereof and a laser light source$
标题翻译：光纤衍射光栅，其制造方法和激光光源
公开(公告)号：US6067392A
公开(公告)日：2000-05-23
申请号：US860697
申请日：1997-06-16
申请人： Toshinori Wakami , Masayuki Shigematsu , Yoshiaki Terasawa , Akira Inoue , Masakazu Shigehara , Toru Iwashima
发明人： Toshinori Wakami , Masayuki Shigematsu , Yoshiaki Terasawa , Akira Inoue , Masakazu Shigehara , Toru Iwashima
IPC分类号： G02B6/38 , H01S3/067 , G02B6/22
CPC分类号： H01S3/0675 , G02B6/0218 , G02B6/0219 , G02B6/3845
摘要： A diffraction grating portion (12) is formed in an optical fiber (10), having a diameter of 125 .mu.m and serving to transmit light, along its optical axis. The optical fiber is concentrically surrounded by a lower coating portion (14) having an outer diameter of 300 .mu.m and consisting of a silicone resin. The lower coating portion is concentrically surrounded by a coating portion (16) having an outer diameter of 900 .mu.m and consisting of a liquid crystal polymer, e.g., polyester amide. The coating portion is further surrounded by an outermost coating portion (18) having an outer diameter of 1 mm and consisting of a UV curing resin colored for identification. Both the optical fiber (10) and the lower coating portion (14) have positive thermal expansion coefficients. In contrast to this, the coating portion (16) consisting of the liquid crystal polymer has a negative thermal expansion coefficient.
摘要翻译： PCT No.PCT / JP96 / 03000 Sec。 371日期：1997年6月16日 102（e）日期1996年6月16日PCT提交1996年10月16日PCT公布。公开号WO97 / 14983 日期1997年04月24日衍射光栅部分（12）形成在光纤（10）中，其直径为125μm，用于沿其光轴透射光。光纤由外部为300μm的下部涂层部分（14）同心围绕，由硅树脂构成。下涂层部分由外径为900μm的涂层部分（16）同心地围绕，并由液晶聚合物例如聚酯酰胺组成。涂层部分进一步被外径为1mm的最外涂层部分（18）包围，并由用于识别的紫外线固化树脂组成。光纤（10）和下涂层部分（14）均具有正的热膨胀系数。与此相反，由液晶聚合物构成的涂布部分（16）具有负的热膨胀系数。

10. 发明授权

US08821036B2 Optical module and optical system 有权
标题翻译：光模块和光学系统
公开(公告)号：US08821036B2
公开(公告)日：2014-09-02
申请号：US13307030
申请日：2011-11-30
申请人： Masakazu Shigehara
发明人： Masakazu Shigehara
IPC分类号： G02B6/36
CPC分类号： G02B6/4249 , G02B6/3825 , G02B6/3885 , G02B6/4246 , G02B6/4292
摘要： The present invention provides an optical module and an optical system that can form a two-way optical transmitting and receiving line with the same optical wiring configuration without using any special parts. The optical module includes a plurality of single-fiber optical adapters, a multi-fiber optical adapter, a plurality of single-fiber optical connectors mating with the respective single-fiber optical adapters, a multi-fiber optical connector mating with the multi-fiber optical adapter, and a plurality of optical fibers connecting the respective single-fiber optical connectors and the multi-fiber optical connector. Wiring of the optical fibers is configured to connect two single-fiber optical connectors inserted into adjacent single-fiber optical adapters and fiber holes in the upper tier and the lower tier in the same row of the multi-fiber optical connector.
摘要翻译：本发明提供了一种光模块和光学系统，其可以在不使用任何特殊部件的情况下形成具有相同光配线配置的双向光发送和接收线路。光学模块包括多个单纤维光学适配器，多光纤光学适配器，与相应的单纤维光学适配器配合的多个单纤维光学连接器，与多纤维光纤配合的多光纤光学连接器光学适配器以及连接各单根光纤连接器和多光纤光连接器的多根光纤。光纤的布线被配置为连接插入到相邻的单纤维光学适配器中的两个单纤维光学连接器和多根光纤连接器的同一行中的上层和下层中的光纤孔。

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