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1. 发明授权

US08311371B2 Optical modulation device 失效
标题翻译：光调制装置
公开(公告)号：US08311371B2
公开(公告)日：2012-11-13
申请号：US11884407
申请日：2006-02-16
申请人： Kenji Kawano , Masaya Nanami , Hiroaki Senda , Takeshi Hondo , Seiji Uchida , Yuji Sato , Toru Nakahira
发明人： Kenji Kawano , Masaya Nanami , Hiroaki Senda , Takeshi Hondo , Seiji Uchida , Yuji Sato , Toru Nakahira
IPC分类号： G02F1/035 , G02B6/42 , G02B6/12
CPC分类号： G02F1/2255 , G02F1/0356 , G02F2001/212 , G02F2202/07 , G02F2202/20
摘要： Herein disclosed is an optical modulation device, comprising: a substrate 1 having a polarization non-reversal region 17a and a polarization reversal region 17b; an optical waveguide 18 including first and second branched optical waveguide portions 18a, 18b; and a traveling waveguide including a center electrode 19a and a ground electrode 19b, 19c to have an electric signal applied thereto, said traveling waveguide and said first and second branched optical waveguide portions collectively forming an interaction portion to have said incident light interacted with said electric signal, said interaction portion being constituted by a first interaction sub-portion 20a and a second interaction sub-portion 20b, said first and second interaction sub-portions being respectively positioned in regions of said substrate having opposite polarization orientations with each other, in which said center electrode is positioned in face to face relationship with one of said first and second branched optical waveguide portions at said first and second interaction sub-portion to ensure that said incident light in said first and second branched optical waveguide portions are phase modulated, and in which said interaction portion includes an optical waveguide shift sub-portion sandwiched between said first and second interaction sub-portions to have positions of said first and second branched optical waveguide portions shifted therein in a transverse direction, ensuring that positions of said first and second optical waveguides relative to said center and ground electrodes are interchanged between said first and second interaction sub-portions.
摘要翻译：这里公开了一种光调制装置，包括：具有极化非反转区域17a和极化反转区域17b的基板1; 包括第一和第二分支光波导部分18a，18b的光波导18; 以及具有施加电信号的中心电极19a和接地电极19b，19c的行进波导，所述行波导管和所述第一和第二分支光波导部分共同形成相互作用部分，以使所述入射光与所述电信号，所述相互作用部分由第一相互作用子部分20a和第二相互作用子部分20b构成，所述第一相互作用子部分和第二相互作用子部分分别位于具有相反极化取向的所述基板的区域中，其中所述中心电极在所述第一和第二相互作用子部分处于与所述第一和第二分支光波导部分中的一个相对面的关系，以确保所述第一和第二分支光波导部分中的所述入射光被相位调制，以及其中所述相互作用部分包括光波导s 夹在所述第一相互作用子部分和第二相互作用子部分之间的折叠部分，以使所述第一和第二分支光波导部分在横向上移位的位置，确保所述第一和第二光波导相对于所述中心和接地电极的位置在所述第一和第二相互作用子部分之间互换。

2. 发明申请

US20100054654A1 Optical Modulation Device 失效
标题翻译：光调制装置
公开(公告)号：US20100054654A1
公开(公告)日：2010-03-04
申请号：US11884407
申请日：2006-02-16
申请人： Kenji Kawano , Masaya Nanami , Hiroaki Senda , Takeshi Hondo , Seiji Uchida , Yuji Sato , Toru Nakahira
发明人： Kenji Kawano , Masaya Nanami , Hiroaki Senda , Takeshi Hondo , Seiji Uchida , Yuji Sato , Toru Nakahira
IPC分类号： G02F1/035 , G02B6/12
CPC分类号： G02F1/2255 , G02F1/0356 , G02F2001/212 , G02F2202/07 , G02F2202/20
摘要： Herein disclosed is an optical modulation device, comprising: a substrate 1 having a polarization non-reversal region 17a and a polarization reversal region 17b; an optical waveguide 18 including first and second branched optical waveguide portions 18a, 18b; and a traveling waveguide including a center electrode 19a and a ground electrode 19b, 19c to have an electric signal applied thereto, said traveling waveguide and said first and second branched optical waveguide portions collectively forming an interaction portion to have said incident light interacted with said electric signal, said interaction portion being constituted by a first interaction sub-portion 20a and a second interaction sub-portion 20b, said first and second interaction sub-portions being respectively positioned in regions of said substrate having opposite polarization orientations with each other, in which said center electrode is positioned in face to face relationship with one of said first and second branched optical waveguide portions at said first and second interaction sub-portion to ensure that said incident light in said first and second branched optical waveguide portions are phase modulated, and in which said interaction portion includes an optical waveguide shift sub-portion sandwiched between said first and second interaction sub-portions to have positions of said first and second branched optical waveguide portions shifted therein in a transverse direction, ensuring that positions of said first and second optical waveguides relative to said center and ground electrodes are interchanged between said first and second interaction sub-portions.
摘要翻译：这里公开了一种光调制装置，包括：具有极化非反转区域17a和极化反转区域17b的基板1; 包括第一和第二分支光波导部分18a，18b的光波导18; 以及具有施加电信号的中心电极19a和接地电极19b，19c的行进波导，所述行波导管和所述第一和第二分支光波导部分共同形成相互作用部分，以使所述入射光与所述电信号，所述相互作用部分由第一相互作用子部分20a和第二相互作用子部分20b构成，所述第一相互作用子部分和第二相互作用子部分分别位于具有相反极化取向的所述基板的区域中，其中所述中心电极在所述第一和第二相互作用子部分处于与所述第一和第二分支光波导部分中的一个相对面的关系，以确保所述第一和第二分支光波导部分中的所述入射光被相位调制，以及其中所述相互作用部分包括光波导s 夹在所述第一相互作用子部分和第二相互作用子部分之间的折叠部分，以使所述第一和第二分支光波导部分在横向方向上移位的位置，确保所述第一和第二光波导相对于所述中心和接地电极的位置在所述第一和第二相互作用子部分之间互换。

3. 发明授权

US07643708B2 Optical modulator 失效
标题翻译：光调制器
公开(公告)号：US07643708B2
公开(公告)日：2010-01-05
申请号：US11988199
申请日：2006-07-05
申请人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
发明人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
IPC分类号： G02F1/035
CPC分类号： G02F1/0121 , G02F1/2255 , G02F2201/127
摘要： Herein disclosed is an optical modulator, comprising: a substrate (1) having an electro-optic effect; an optical waveguide (3) formed in the substrate; a traveling wave electrode (4) including a center electrode (4a) and ground electrodes (4b, 4c) to have a high frequency electric signal applied thereto, the traveling wave electrode and the optical waveguide collectively forming a high frequency interaction portion (20) to have the incident light phase modulated under the condition that the high frequency electric signal is applied to the traveling wave electrode; and bias electrodes each including a center electrode (22a, 23a) and ground electrodes (22b, 22c, 23b, 23c) to have a bias voltage applied thereto, each of the bias electrodes and the optical waveguide collectively forming a bias voltage interaction portion (19, 21) to have the incident light phase modulated under the condition that the bias voltage is applied to the bias electrode, in which the traveling wave electrode and the bias electrodes are extended in a propagation direction of the incident light with the traveling wave electrode (20) positioned between the bias electrodes (19, 21).
摘要翻译：这里公开了一种光调制器，包括：具有电光效应的基板（1）形成在所述基板中的光波导（3）包括中心电极（4a）和施加高频电信号的接地电极（4b，4c）的行波电极（4），行波电极和光波导共同形成高频相互作用部分（20）在高频电信号施加到行波电极的条件下使入射光相位调制; 以及各自包括中心电极（22a，23a）和接地电极（22b，22c，23b，23c）的偏置电极以施加偏置电压，每个偏置电极和光波导共同形成偏置电压相互作用部分（在偏置电极施加偏置电极的条件下进行入射光相位调制，其中行波电极和偏置电极在入射光的传播方向上延伸有行波电极（20）位于偏置电极（19,21）之间。

4. 发明申请

US20090041403A1 Optical Modulator 失效
标题翻译：光调制器
公开(公告)号：US20090041403A1
公开(公告)日：2009-02-12
申请号：US11988199
申请日：2006-07-05
申请人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
发明人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
IPC分类号： G02F1/035
CPC分类号： G02F1/0121 , G02F1/2255 , G02F2201/127
摘要： Herein disclosed is an optical modulator, comprising: a substrate (1) having an electro-optic effect; an optical waveguide (3) formed in the substrate; a traveling wave electrode (4) including a center electrode (4a) and ground electrodes (4b, 4c) to have a high frequency electric signal applied thereto, the traveling wave electrode and the optical waveguide collectively forming a high frequency interaction portion (20) to have the incident light phase modulated under the condition that the high frequency electric signal is applied to the traveling wave electrode; and bias electrodes each including a center electrode (22a, 23a) and ground electrodes (22b, 22c, 23b, 23c) to have a bias voltage applied thereto, each of the bias electrodes and the optical waveguide collectively forming a bias voltage interaction portion (19, 21) to have the incident light phase modulated under the condition that the bias voltage is applied to the bias electrode, in which the traveling wave electrode and the bias electrodes are extended in a propagation direction of the incident light with the traveling wave electrode (20) positioned between the bias electrodes (19, 21).
摘要翻译：这里公开了一种光调制器，包括：具有电光效应的基板（1）形成在所述基板中的光波导（3）包括中心电极（4a）和施加高频电信号的接地电极（4b，4c）的行波电极（4），行波电极和光波导共同形成高频相互作用部分（20）在将高频电信号施加到行波电极的条件下使入射光相位调制; 以及各自包括中心电极（22a，23a）和接地电极（22b，22c，23b，23c）的偏置电极以施加偏置电压，每个偏置电极和光波导共同形成偏置电压相互作用部分（在偏置电极施加偏置电极的条件下进行入射光相位调制，其中行波电极和偏置电极在入射光的传播方向上延伸有行波电极（20）位于偏置电极（19,21）之间。

5. 发明申请

US20090034898A1 OPTICAL MODULATOR 有权
标题翻译：光学调制器
公开(公告)号：US20090034898A1
公开(公告)日：2009-02-05
申请号：US12063789
申请日：2006-08-15
申请人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
发明人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
IPC分类号： G02F1/035 , G02F1/03
CPC分类号： G02F1/2255 , G02F1/0316 , G02F1/0356 , G02F2203/25
摘要： Herein disclosed is an optical modulator, comprising: a substrate 1 having an electro-optic effect; an optical waveguide 12 embedded in the substrate 1 to have a light wave guided therein; a traveling wave electrode 4 mounted on the substrate 1 to have a traveling wave applied thereon so that the light wave is modulated by the traveling wave with the electro-optic effect, the traveling wave electrode being constituted by a center electrode 4a and ground electrodes 4b, 4c; in which the optical waveguide has a plurality of interaction optical waveguides 12a, 12b to collectively form a Mach-Zehnder optical waveguide operative to modulate the light wave in a phase modulation manner under the condition that the traveling wave is applied to the traveling wave electrode, the interaction optical waveguides 12a, 12b collectively form a region where respective widths of said interaction optical waveguides are different from each other, and the center electrode 4a and the ground electrodes 4b, 4c are positioned such that interaction efficiencies between the high frequency electric signal and the light wave guided in the respective interaction optical waveguides 12a, 12b are substantially equal to each other.
摘要翻译：这里公开了一种光调制器，包括：具有电光效应的基板1; 嵌入在基板1内的光波导路12，其中引导光波; 安装在基板1上的行波电极4，其上施加有行波，使得光波被电光效应的行波调制，行波电极由中心电极4a和接地电极4b构成，4c; 其中光波导具有多个相互作用的光波导12a，12b，以在将行波施加到行波电极的条件下共同形成用于以相位调制方式调制光波的马赫 - 曾德尔光波导，相互作用的光波导12a，12b共同形成相互之间的相互作用的光波导的各自的宽度彼此不同的区域，中心电极4a和接地电极4b，4c被定位成使得高频电波信号与在相互作用的光波导12a，12b中引导的光波基本相等。

6. 发明授权

US07916981B2 Optical modulator 有权
标题翻译：光调制器
公开(公告)号：US07916981B2
公开(公告)日：2011-03-29
申请号：US12063789
申请日：2006-08-15
申请人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
发明人： Kenji Kawano , Masaya Nanami , Yuji Sato , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Hiroaki Senda
IPC分类号： G02F1/01 , G02F1/035 , G02B6/12
CPC分类号： G02F1/2255 , G02F1/0316 , G02F1/0356 , G02F2203/25
摘要： An optical modulator, including: a substrate; an optical waveguide embedded in the substrate; a traveling wave electrode mounted on the substrate and having a traveling wave applied thereon so that a light wave is modulated by the traveling wave with an electro-optic effect. The traveling wave electrode includes a center electrode and ground electrodes; in which the optical waveguide has a plurality of interaction optical waveguides that form a Mach-Zehnder optical waveguide that modulates the light wave in a phase modulation manner when the traveling wave is applied to the traveling wave electrode, the interaction optical waveguides form a region where respective widths of the interaction optical waveguides are different from each other, and the center electrode and the ground electrodes are positioned such that interaction efficiencies between the high frequency electric signal and the light wave guided in the respective interaction optical waveguides are substantially equal to each other.
摘要翻译：一种光调制器，包括：基板; 嵌入基板中的光波导; 安装在基板上并具有施加在其上的行波的行波电极，使得光波被电光效应的行波调制。行波电极包括中心电极和接地电极; 其中光波导具有多个相互作用的光波导，其形成当将行波施加到行波电极时以相位调制方式调制光波的马赫 - 曾德尔光波导，相互作用光波导形成一个区域，相互作用光波导的相应宽度彼此不同，并且中心电极和接地电极被定位成使得在各个相互作用光波导中引导的高频电信号和光波之间的相互作用效率基本相等。

7. 发明申请

US20090297087A1 OPTICAL MODULATOR 失效
标题翻译：光学调制器
公开(公告)号：US20090297087A1
公开(公告)日：2009-12-03
申请号：US12471838
申请日：2009-05-26
申请人： Kenji Kawano , Seiji Uchida , Eiji Kawazura , Yuji Sato , Masaya Nanami , Toru Nakahira , Nobuhiro Igarashi , Satoshi Matsumoto
发明人： Kenji Kawano , Seiji Uchida , Eiji Kawazura , Yuji Sato , Masaya Nanami , Toru Nakahira , Nobuhiro Igarashi , Satoshi Matsumoto
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F2001/212
摘要： Herein disclosed is an optical modulator, having: a substrate (1); and a center and ground electrodes (4a to 4c), in which the substrate has ridge portions (8a to 8c), the center and ground electrodes are respectively formed above the ridge portions, the ridge portions below the center and ground electrodes respectively have top parts (10a, 10b) having a respective first and second end points (18, 19) separated with a distance of “WR”, the substrate has a bottom surface (21b) between the ridge portions having center and midway points (23, 24) positioned with a respective distance of WR/2 and WR/N ( 3 ≦N≦25 ) from the first end point, the ridge portion below the center electrode has a normal line (13), and the center point and the midway point define a straight line (25) crossed with the normal line at an angle larger or equal to 90.1°.
摘要翻译：本文公开了一种光调制器，具有：基板（1）; 以及其中基板具有脊部分（8a至8c）的中心和接地电极（4a至4c），中心接地电极分别形成在脊部上方，中心部分和接地电极下方的脊部分别具有顶部具有以“WR”的距离分开的相应的第一和第二端点（18,19）的部分（10a，10b），所述基板在具有中心点和中间点（23,24）的脊部之间具有底表面）与第一端点分别具有WR / 2和WR / N（3 <= N <= 25）的距离，中心电极下方的脊部具有法线（13），中心点和中间点限定与法线交叉的直线（25），角度大于或等于90.1°。

8. 发明授权

US07474812B2 Monitor photodetector equipped optical modulator 失效
标题翻译：监控光电探测器配有光调制器
公开(公告)号：US07474812B2
公开(公告)日：2009-01-06
申请号：US10566735
申请日：2005-06-08
申请人： Kenji Kawano , Masaya Nanami , Makoto Saito , Toru Nakahira , Yuji Sato , Seiji Uchida
发明人： Kenji Kawano , Masaya Nanami , Makoto Saito , Toru Nakahira , Yuji Sato , Seiji Uchida
IPC分类号： G02F1/035 , G02B6/10
CPC分类号： G02F1/225 , G02F1/0123 , G02F2201/58
摘要： An optical modulator has, on a substrate having electro-optic effect, an optical waveguide including an input optical waveguide, two branching optical waveguides which branch a light beam incident to the input optical waveguide into two beams, two interaction optical waveguides which modulate a light beam phase by applying a voltage between a center electrode and ground electrodes, a multiplexing optical waveguide which multiplexes the light beams which propagate through the two interaction optical waveguides, and an output optical waveguide which is connected to the multiplexing optical waveguide through a multiplexing point. In the optical modulator, a high-order mode light beam which is generated by multiplexing the phase-modulated light beam and which is radiated from the multiplexing point to an inside of the substrate as two radiant light beams while the high-order mode light beam hardly propagates through the output optical waveguide, and at least one of the two radiant light beams is detected by a monitor photodetector. The output optical waveguide is formed while deformed in order to secure a space for mounting the monitor photodetector such that at least one of optical axes of the radiant light beams in a substrate end portion located on the output optical waveguide and an end of the output optical waveguide are separated from each other by a predetermined distance.
摘要翻译：光调制器在具有电光效应的基板上具有包括输入光波导的光波导，将入射到输入光波导的光束分支成两束的分支光波导，两个调制光的相互作用的光波导通过在中心电极和接地电极之间施加电压，多路复用通过两个相互作用的光波导传播的光束的多路复用光波导和通过多路复用点连接到复用光波导的输出光波导。在光调制器中，高阶模式光束是通过将相位调制光束多路复用而产生的，并且从多路复用点辐射到基板的内部作为两个辐射光束，而高阶模式光束几乎不通过输出光波导传播，并且两个辐射光束中的至少一个被监视器光检测器检测。输出光波导形成为变形，以便确保用于安装监视器光电检测器的空间，使得辐射光束的光轴中的至少一个位于位于输出光波导上的基板端部和输出光学波导的端部波导彼此隔开预定距离。

9. 发明申请

US20080044123A1 Monitor Photodetector Equipped Optical Modulator 失效
标题翻译：监控光电检测器配备的光调制器
公开(公告)号：US20080044123A1
公开(公告)日：2008-02-21
申请号：US10566735
申请日：2005-06-08
申请人： Kenji Kawano , Masaya Nanami , Makoto Saito , Toru Nakahira , Yuji Sato , Seiji Uchida
发明人： Kenji Kawano , Masaya Nanami , Makoto Saito , Toru Nakahira , Yuji Sato , Seiji Uchida
IPC分类号： G02F1/035
CPC分类号： G02F1/225 , G02F1/0123 , G02F2201/58
摘要： An optical modulator has, on a substrate having electro-optic effect, an optical waveguide including an input optical waveguide, two branching optical waveguides which branch a light beam incident to the input optical waveguide into two beams, two interaction optical waveguides which modulate a light beam phase by applying a voltage between a center electrode and ground electrodes, a multiplexing optical waveguide which multiplexes the light beams which propagate through the two interaction optical waveguides, and an output optical waveguide which is connected to the multiplexing optical waveguide through a multiplexing point. In the optical modulator, a high-order mode light beam which is generated by multiplexing the phase-modulated light beam and which is radiated from the multiplexing point to an inside of the substrate as two radiant light beams while the high-order mode light beam hardly propagates through the output optical waveguide, and at least one of the two radiant light beams is detected by a monitor photodetector. The output optical waveguide is formed while deformed in order to secure a space for mounting the monitor photodetector such that at least one of optical axes of the radiant light beams in a substrate end portion located on the output optical waveguide and an end of the output optical waveguide are separated from each other by a predetermined distance.
摘要翻译：光调制器在具有电光效应的基板上具有包括输入光波导的光波导，将入射到输入光波导的光束分支成两束的分支光波导，两个调制光的相互作用的光波导通过在中心电极和接地电极之间施加电压，多路复用通过两个相互作用的光波导传播的光束的多路复用光波导和通过多路复用点连接到复用光波导的输出光波导。在光调制器中，高阶模式光束是通过将相位调制光束多路复用而产生的，并且从多路复用点辐射到基板的内部作为两个辐射光束，而高阶模式光束几乎不通过输出光波导传播，并且两个辐射光束中的至少一个被监视器光检测器检测。输出光波导形成为变形，以便确保用于安装监视器光电检测器的空间，使得辐射光束的光轴中的至少一个位于位于输出光波导上的基板端部和输出光学波导的端部波导彼此隔开预定距离。

10. 发明申请

US20100209040A1 OPTICAL MODULATOR 失效
标题翻译：光学调制器
公开(公告)号：US20100209040A1
公开(公告)日：2010-08-19
申请号：US12678534
申请日：2008-09-19
申请人： Kenji Kawano , Eiji Kawazura , Yuji Sato , Masaya Nanami , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Satoshi Matsumoto
发明人： Kenji Kawano , Eiji Kawazura , Yuji Sato , Masaya Nanami , Seiji Uchida , Nobuhiro Igarashi , Toru Nakahira , Satoshi Matsumoto
IPC分类号： G02F1/035 , G02B6/12
CPC分类号： G02F1/2255 , G02F2201/07 , G02F2201/12 , G02F2203/21
摘要： In an optical modulator comprising substrate 1 having electro-optical effect, two optical waveguides 3a, 3b formed in the substrate, buffer layer 2 formed on the substrate, traveling-wave electrode 4 having center conductor 4a and ground conductors 4b, 4c above the buffer layer, and ridge sections formed with recessed sections 9a to 9c by carving at least a part of the substrate where an electrical field strength of high-frequency electrical signal propagating the traveling-wave electrode is strong, in which the ridge sections include center conductor ridge section 8a having the center conductor formed above and ground conductor ridge section 8b having the ground conductor formed above, and the center conductor ridge section has one of the two optical waveguides formed therein, the recessed sections are practically symmetrical to the center line between the two optical waveguides and the traveling-wave electrode is practically symmetrical to the center line of the center conductor.
摘要翻译：在具有电光效应的基板1的光调制器中，形成在基板上的两个光波导3a，3b，形成在基板上的缓冲层2，具有中心导体4a的行波电极4和缓冲器上方的接地导体4b，4c 通过雕刻传播行波电极的高频电信号的电场强度强的基板的至少一部分而形成有凹部9a〜9c的层，脊部，其中脊部包括中心导体脊具有上面形成的中心导体的部分8a和具有形成在上面的接地导体的接地导体脊部分8b，并且中心导体脊部分在其中形成的两个光波导中的一个形成，凹部实际上对称于两者之间的中心线光波导和行波电极实际上与中心导体的中心线对称。

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