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1. 发明授权

US08705900B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US08705900B2
公开(公告)日：2014-04-22
申请号：US13635845
申请日：2011-03-18
申请人： Takashi Goh , Takashi Yamada , Hiroshi Yamazaki , Yoshiyuki Doi
发明人： Takashi Goh , Takashi Yamada , Hiroshi Yamazaki , Yoshiyuki Doi
IPC分类号： G02F1/035 , G02F1/225 , H04B10/54
CPC分类号： G02F1/225 , G02F1/0121 , G02F2001/212 , H04B10/5051 , H04B10/5053 , H04B10/5162 , H04B10/54 , H04B10/5561 , H04L27/206
摘要： Disclosed is an optical modulator which substantially lowers loss and has little attenuation in the intensity of an optical signal after modulation. The optical modulator includes a 1×2 RZ pulse carver wherein optical phase shifters used for modulation are arranged along two arm waveguides held between a 1×2 coupler and a 2×2 coupler, two interferometric modulators connected respectively to two output ports of the 2×2 coupler, and a 2×1 coupler for combining the outputs of the interferometric modulators.
摘要翻译：公开了一种光调制器，其基本上降低了损耗，并且在调制后光信号的强度几乎没有衰减。光调制器包括1×2 RZ脉冲雕刻机，其中用于调制的光学移相器沿着保持在1×2耦合器和2×2耦合器之间的两个臂波导布置，两个干涉式调制器分别连接到2的两个输出端口 ×2耦合器和用于组合干涉式调制器的输出的2×1耦合器。

2. 发明申请

US20130322815A1 WAVEGUIDE TYPE OPTICAL SWITCH 有权
标题翻译：波导型光开关
公开(公告)号：US20130322815A1
公开(公告)日：2013-12-05
申请号：US13984282
申请日：2012-02-14
申请人： Toshio Watanabe , Kenya Suzuki , Takashi Goh , Hiroshi Yamazaki , Atsushi Mori
发明人： Toshio Watanabe , Kenya Suzuki , Takashi Goh , Hiroshi Yamazaki , Atsushi Mori
IPC分类号： G02B6/35
CPC分类号： G02B6/3546 , G02B6/3594 , G02B2006/12145 , G02F1/0147 , G02F1/225 , G02F1/3137 , G02F2001/212 , H04Q11/0005 , H04Q2011/0052
摘要： A waveguide type optical switch that can reduce the number of intersections in a matrix optical switch having the configuration of connecting unit optical switches and optical combining devices or optical branching devices to have a connecting function from “multiple inputs to one output” to “one input to multiple outputs”. To reduce the number of intersections in an entire matrix optical switch, an optical combining device of M inputs and one output is divided into (M−1) pieces of unit optical combining elements each having two inputs and one output, which are arranged immediately after (N−1) pieces of respective output ports excluding one piece of the output port closer to the input in the matrix optical switch out of N pieces of the output ports in the optical switch of one input and N outputs.
摘要翻译：一种波导型光开关，其可以减少具有连接单元光开关和光学组合装置或光分路装置的配置的矩阵光开关中的交叉数，以具有从“多输入到一输出”到“一输入”的连接功能到多个输出“。为了减少整个矩阵光开关中的交点的数量，将M个输入和一个输出的光学组合装置分成（M-1）个单元光学组合元件，它们分别具有两个输入和一个输出（N-1）个输出端口，在一个输入的光开关中的N个输出端口中，除了在矩阵光开关中的输入端更靠近的一个输出端口，N个输出。

3. 发明授权

US08588560B2 Optical 90-degree hybrid circuit 有权
标题翻译：光学90度混合电路
公开(公告)号：US08588560B2
公开(公告)日：2013-11-19
申请号：US13378034
申请日：2010-07-09
申请人： Yohei Sakamaki , Takashi Goh , Toshikazu Hashimoto , Yusuke Nasu , Kuninori Hattori , Hiroshi Takahashi
发明人： Yohei Sakamaki , Takashi Goh , Toshikazu Hashimoto , Yusuke Nasu , Kuninori Hattori , Hiroshi Takahashi
IPC分类号： G02B6/12 , G02B6/26 , G02B6/42 , H04B10/00
CPC分类号： H04B10/611 , H04B10/60 , H04B10/613 , H04B10/614
摘要： An optical 90-degree hybrid circuit includes a first demultiplexing optical coupler having two or more first input ports and two or more first output ports, a second demultiplexing optical coupler having two or more second input ports and two or more second output ports, two first arm waveguides connected to the first output ports, two second arm waveguides connected to the second output ports, a 90-degree phase shift section installed in one of the four arm waveguides, a first optical coupler and a second optical coupler connected to the first arm waveguides and the second arm waveguides, a first optical waveguide for connecting an optical splitter and the first input ports, and a second optical waveguide for connecting the optical splitter and the second input ports, wherein an optical length of the first optical waveguide is different from that of the second optical waveguide.
摘要翻译：光学90度混合电路包括具有两个或多个第一输入端口和两个或更多个第一输出端口的第一解复用光耦合器，具有两个或多个第二输入端口和两个或更多个第二输出端口的第二解复用光耦合器，两个第一输出端口连接到第一输出端口的臂波导，连接到第二输出端口的两个第二臂波导，安装在四个臂波导之一中的90度相移部分，连接到第一臂的第一光耦合器和第二光耦合器波导和第二臂波导，用于连接光分路器和第一输入端口的第一光波导和用于连接光分路器和第二输入端口的第二光波导，其中第一光波导的光学长度不同于第二光波导的。

4. 发明申请

US20120093457A1 OPTICAL 90-DEGREE HYBRID CIRCUIT 有权
标题翻译：光学90度混合电路
公开(公告)号：US20120093457A1
公开(公告)日：2012-04-19
申请号：US13378034
申请日：2010-07-09
申请人： Yohei Sakamaki , Takashi Goh , Toshikazu Hashimoto , Yusuke Nasu , Kuninori Hattori , Hiroshi Takahashi
发明人： Yohei Sakamaki , Takashi Goh , Toshikazu Hashimoto , Yusuke Nasu , Kuninori Hattori , Hiroshi Takahashi
IPC分类号： G02B6/12
CPC分类号： H04B10/611 , H04B10/60 , H04B10/613 , H04B10/614
摘要： An optical 90-degree hybrid circuit includes a first demultiplexing optical coupler having two or more first input ports and two or more first output ports, a second demultiplexing optical coupler having two or more second input ports and two or more second output ports, two first arm waveguides connected to the first output ports, two second arm waveguides connected to the second output ports, a 90-degree phase shift section installed in one of the four arm waveguides, a first optical coupler and a second optical coupler connected to the first arm waveguides and the second arm waveguides, a first optical waveguide for connecting an optical splitter and the first input ports, and a second optical waveguide for connecting the optical splitter and the second input ports, wherein an optical length of the first optical waveguide is different from that of the second optical waveguide.
摘要翻译：光学90度混合电路包括具有两个或多个第一输入端口和两个或更多个第一输出端口的第一解复用光耦合器，具有两个或多个第二输入端口和两个或更多个第二输出端口的第二解复用光耦合器，两个第一输出端口连接到第一输出端口的臂波导，连接到第二输出端口的两个第二臂波导，安装在四个臂波导之一中的90度相移部分，连接到第一臂的第一光耦合器和第二光耦合器波导和第二臂波导，用于连接光分路器和第一输入端口的第一光波导和用于连接光分路器和第二输入端口的第二光波导，其中第一光波导的光学长度不同于第二光波导的。

5. 发明申请

US20110101208A1 PHOTOCURRENT MONITORING CIRCUIT 失效
标题翻译：光电监控电路
公开(公告)号：US20110101208A1
公开(公告)日：2011-05-05
申请号：US12673895
申请日：2007-08-21
申请人： Ryosuke Saito , Hisanobu Tanigawa , Takashi Goh , Ryoichi Kasahara
发明人： Ryosuke Saito , Hisanobu Tanigawa , Takashi Goh , Ryoichi Kasahara
IPC分类号： H03F3/08
CPC分类号： G01J1/44 , H01L31/101
摘要： A low cost photocurrent monitoring circuit is provided. A photocurrent monitoring circuit, which performs monitoring by converting photocurrents output from a plurality of photodiodes (PD1 to PDn) into voltage, includes: a multiplexer circuit (MUX) for selecting one of input terminals to establish a connection of the selected input terminal to an output terminal, wherein the photodiodes (PD1 to PDn) are respectively connected to the input terminals; and an amplifier (LA) for converting a photocurrent which flows from a selected photodiode via the multiplexer circuit (MUX) into a voltage, and for outputting the voltage.
摘要翻译：提供了低成本的光电流监测电路。通过将从多个光电二极管（PD1至PDn）输出的光电流转换成电压进行监视的光电流监视电路包括：多路复用器电路（MUX），用于选择输入端之一以建立所选输入端与输出端子，其中所述光电二极管（PD1至PDn）分别连接到所述输入端子; 以及用于将通过多路复用器电路（MUX）从所选择的光电二极管流动的光电流转换成电压并用于输出电压的放大器（LA）。

6. 发明申请

US20080226290A1 OPTICAL SIGNAL MONITORING APPARATUS, OPTICAL SYSTEM AND OPTICAL SIGNAL MONITORING METHOD 审中-公开
标题翻译：光信号监测装置，光系统和光信号监测方法
公开(公告)号：US20080226290A1
公开(公告)日：2008-09-18
申请号：US12042767
申请日：2008-03-05
申请人： Takaharu Ohyama , Takashi Goh , Shin Kamei , Shunichi Sohma , Mikitaka Itoh , Ikuo Ogawa , Akimasa Kaneko , Tomoyuki Yamada , Mitsuru Nagano , Yoshiyuki Doi , Takashi Saida
发明人： Takaharu Ohyama , Takashi Goh , Shin Kamei , Shunichi Sohma , Mikitaka Itoh , Ikuo Ogawa , Akimasa Kaneko , Tomoyuki Yamada , Mitsuru Nagano , Yoshiyuki Doi , Takashi Saida
IPC分类号： H04B10/08
CPC分类号： H04B10/07955
摘要： By reducing the number of PD arrays, and by simplifying the configuration of an optical power monitor in a WDM system, a miniaturized, cost reduced optical signal monitoring apparatus, optical system or optical signal monitoring method is provided. An optical power monitor 1 has an optical switch 30 having four input ports 31, a DMUX 2 having 48 output ports, and six CSP type PD array modules 50 each including an 8-channel PD array. The output port 32 of the optical switch 30 having four switchable input ports 31 is optically connected to the input port 21 of the AWG 20. The 48 output ports 22 of the AWG 20 are each optically connected to photosensitive surfaces 53 of the individual PDs included in the CSP type PD array modules 50. The CSP type PD array modules 50 are mounted on the end face of the AWG 20.
摘要翻译：通过减少PD阵列的数量，并且通过简化WDM系统中的光功率监视器的配置，提供了一种小型化，成本降低的光信号监视装置，光学系统或光信号监视方法。光功率监视器1具有具有四个输入端口31的光开关30，具有48个输出端口的DMUX 2和每个包括8通道PD阵列的六个CSP型PD阵列模块50。具有四个可切换输入端口31的光开关30的输出端口32光学连接到AWG 20的输入端口21。 AWG 20的48个输出端口22每个光学连接到包括在CSP型PD阵列模块50中的各个PD的感光表面53。 CSP型PD阵列模块50安装在AWG 20的端面上。

7. 发明申请

US20060034565A1 Optical module and optical switch constituting the same 有权
公开(公告)号：US20060034565A1
公开(公告)日：2006-02-16
申请号：US11259328
申请日：2005-10-26
申请人： Shinji Mino , Takeshi Kitagawa , Motohaya Ishii , Takashi Yamada , Akira Himeno , Masayuki Okuno , Shunichi Souma , Takashi Goh
发明人： Shinji Mino , Takeshi Kitagawa , Motohaya Ishii , Takashi Yamada , Akira Himeno , Masayuki Okuno , Shunichi Souma , Takashi Goh
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02F1/3132 , G02B6/29355 , G02F1/31 , G02F1/3136 , G02F2201/16 , H04Q11/0005 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0039 , H04Q2011/0052
摘要： An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for driving the PLC are mounted on the same substrate. The IC is composed of a bare chip to be molded afterward. Wiring of the IC is grouped and integrated on the PLC substrate to achieve higher density and miniaturization of the optical module.

8. 发明申请

US20060034563A1 Optical module and optical switch constituting the same 有权
公开(公告)号：US20060034563A1
公开(公告)日：2006-02-16
申请号：US11258713
申请日：2005-10-26
申请人： Shinji Mino , Takeshi Kitagawa , Motohaya Ishii , Takashi Yamada , Akira Himeno , Masayuki Okuno , Shunichi Souma , Takashi Goh
发明人： Shinji Mino , Takeshi Kitagawa , Motohaya Ishii , Takashi Yamada , Akira Himeno , Masayuki Okuno , Shunichi Souma , Takashi Goh
IPC分类号： G02B6/26 , G02B6/42
CPC分类号： G02F1/3132 , G02B6/29355 , G02F1/31 , G02F1/3136 , G02F2201/16 , H04Q11/0005 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0039 , H04Q2011/0052
摘要： An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for driving the PLC are mounted on the same substrate. The IC is composed of a bare chip to be molded afterward. Wiring of the IC is grouped and integrated on the PLC substrate to achieve higher density and miniaturization of the optical module.

9. 发明授权

US08879873B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US08879873B2
公开(公告)日：2014-11-04
申请号：US14000557
申请日：2012-02-24
申请人： Takashi Goh , Hiroshi Yamazaki
发明人： Takashi Goh , Hiroshi Yamazaki
IPC分类号： G02F1/035 , G02F1/01 , H04B10/516 , H04B10/50
CPC分类号： G02F1/0115 , H04B10/5053 , H04B10/5161
摘要： An optical modulator that supports a plurality of modulation formats is provided. The optical modulator includes: a distribution part including an optical demultiplexing/variable-branching switchable circuit; an optical modulator array; and an aggregation part including a combining ratio variable combining circuit and/or an optical multiplexing/variable-combining switchable circuit. The distribution part forms any or a combination of a variable 1×M demultiplexer/brancher, a combination of one or more fixed ILFs and an optical switch and a combination of a plurality of variable optical couplers and an optical switch; the optical modulator array includes a plurality of optical modulators; the aggregation part includes a structure of any or a combination of one or more variable optical couplers, a combination of a plurality of variable attenuators, an M×1 variable coupler, a variable M×1 demultiplexer/brancher and a combination of one or more fixed ILFs and an optical switch.
摘要翻译：提供了支持多种调制格式的光调制器。光调制器包括：分配部分，包括光解复用/可分转换切换电路; 光调制器阵列; 以及包括组合比可变组合电路和/或光复用/可变组合可切换电路的聚合部分。分配部分形成变量1×M解复用器/分路器，一个或多个固定ILF的组合和光开关以及多个可变光耦合器和光开关的组合的任何或组合; 光调制器阵列包括多个光调制器; 聚合部分包括一个或多个可变光耦合器的任何或组合的结构，多个可变衰减器的组合，M×1可变耦合器，可变M×1解复用器/分支器以及一个或多个可变衰减器的组合固定ILF和光开关。

10. 发明授权

US08721191B2 Optical component 有权
标题翻译：光学元件
公开(公告)号：US08721191B2
公开(公告)日：2014-05-13
申请号：US13813388
申请日：2011-08-02
申请人： Motohaya Ishii , Takashi Yamada , Yoshiyuki Doi , Takashi Saida , Ken Tsuzuki , Takashi Goh , Hiroshi Yamazaki , Shinji Mino , Takao Fukumitsu , Atsushi Murasawa , Fumihiro Ebisawa , Hiroshi Terui , Tomoyo Shibazaki , Yuichi Kikuchi
发明人： Motohaya Ishii , Takashi Yamada , Yoshiyuki Doi , Takashi Saida , Ken Tsuzuki , Takashi Goh , Hiroshi Yamazaki , Shinji Mino , Takao Fukumitsu , Atsushi Murasawa , Fumihiro Ebisawa , Hiroshi Terui , Tomoyo Shibazaki , Yuichi Kikuchi
IPC分类号： G02B6/36
CPC分类号： G02B6/122 , G02B6/30 , G02B6/3897 , G02B6/4267 , G02B6/428 , G02B2006/1204
摘要： In an optical component configured to fix to a mount an optical device chip in which waveguide type optical devices having different thermal expansion coefficients are butt-jointed, deterioration in reliability due to thermal stress is suppressed. The optical component (300) comprises an optical device chip (310) including an LN waveguide (311), a first PLC waveguide (312), a second PLC waveguide (313), and a fiber alignment member (314), a mount (320), and optical fibers (330). Each of connection faces between the first PLC waveguide and the fiber alignment member is configured as an tilted structure, and each of connection faces between the LN waveguide, and the first and second PLC waveguides is configured as a right-angled structure. In the right-angled structure, the connection faces are connected by an adhesive having a lower Young's modulus than that of an adhesive used on the connection faces of the tilted structure.
摘要翻译：在被配置为将具有不同热膨胀系数的波导型光学器件对接的光学器件芯片固定到安装件的光学部件中，抑制了由于热应力引起的可靠性的劣化。光学部件（300）包括光学器件芯片（310），其包括LN波导（311），第一PLC波导（312），第二PLC波导（313）和光纤对准部件（314） 320）和光纤（330）。第一PLC波导和光纤对准部件之间的每个连接面被构造为倾斜结构，并且LN波导与第一和第二PLC波导之间的每个连接面被配置为直角结构。在直角结构中，连接面通过具有比在倾斜结构的连接面上使用的粘合剂的杨氏模量低的粘合剂连接。

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