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。

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。

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 。

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。

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。

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。