公开(公告)号：US07974501B2

公开(公告)日：2011-07-05

申请号：US12407904

申请日：2009-03-20

申请人： Akira Hamajima ,  Jungo Kondo ,  Osamu Mitomi ,  Tetsuya Ejiri ,  Kenji Aoki

发明人： Akira Hamajima ,  Jungo Kondo ,  Osamu Mitomi ,  Tetsuya Ejiri ,  Kenji Aoki

IPC分类号： G02B26/00 ,  G02F1/035

CPC分类号： G02F1/035 ,  G02B6/4202

摘要： An optical modulator 24 has a supporting substrate 5, a modulating substrate 11 made of an electro-optical material, an optical waveguide 12 provided on the side of a first main surface 30 of the modulating substrate 11, and an adhesion layer 6 adhering a second main surface 31 of the modulating substrate 11 onto the supporting substrate 5. The modulating substrate 11 has a high-frequency interaction portion 11c applying a voltage on the optical waveguide 12 to modulate propagating light, an incident portion 11a inputting light to the optical waveguide, and an outgoing portion 11b outputting light from the optical waveguide. The high-frequency interaction portion 11c is recessed on the first main surface 30 of the modulating substrate 11 with respect to the incident and outgoing portions 11a and 11b. The high-frequency interaction portion 11c has a thickness smaller than the those of the incident and outgoing portions 11a and 11b.

摘要翻译： 光调制器24具有支撑基板5，由电光材料制成的调制基板11，设置在调制基板11的第一主面30一侧的光波导12，以及粘接层 调制基板11的主表面31到支撑基板5上。调制基板11具有在光波导12上施加电压以调制传播光的高频相互作用部分11c，向光波导输入光的入射部分11a， 以及从光波导输出光的出射部分11b。 高频相互作用部分11c相对于入射和出射部分11a和11b凹入调制基板11的第一主表面30上。 高频相互作用部分11c的厚度小于入射部分11a和出射部分11b的厚度。

公开(公告)号：US20090245715A1

公开(公告)日：2009-10-01

申请号：US12407904

申请日：2009-03-20

申请人： Akira Hamajima ,  Jungo Kondo ,  Osamu Mitomi ,  Tetsuya Ejiri ,  Kenji Aoki

发明人： Akira Hamajima ,  Jungo Kondo ,  Osamu Mitomi ,  Tetsuya Ejiri ,  Kenji Aoki

IPC分类号： G02F1/035

CPC分类号： G02F1/035 ,  G02B6/4202

摘要： An optical modulator 24 has a supporting substrate 5, a modulating substrate 11 made of an electro-optical material, an optical waveguide 12 provided on the side of a first main surface 30 of the modulating substrate 11, and an adhesion layer 6 adhering a second main surface 31 of the modulating substrate 11 onto the supporting substrate 5. The modulating substrate 11 has a high-frequency interaction portion 11c applying a voltage on the optical waveguide 12 to modulate propagating light, an incident portion 11a inputting light to the optical waveguide, and an outgoing portion 11b outputting light from the optical waveguide. The high-frequency interaction portion 11c is recessed on the first main surface 30 of the modulating substrate 11 with respect to the incident and outgoing portions 11a and 11b. The high-frequency interaction portion 11c has a thickness smaller than the those of the incident and outgoing portions 11a and 11b.

摘要翻译： 光调制器24具有支撑基板5，由电光材料制成的调制基板11，设置在调制基板11的第一主表面30一侧的光波导12和粘附层 调制基板11的主表面31到支撑基板5上。调制基板11具有在光波导12上施加电压以调制传播光的高频相互作用部分11c，向光波导输入光的入射部分11a， 以及从光波导输出光的出射部分11b。 高频相互作用部分11c相对于入射和出射部分11a和11b凹入调制基板11的第一主表面30上。 高频相互作用部分11c的厚度小于入射部分11a和出射部分11b的厚度。

公开(公告)号：US07869669B2

公开(公告)日：2011-01-11

申请号：US12510535

申请日：2009-07-28

申请人： Osamu Mitomi ,  Kenji Aoki ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri ,  Akiyoshi Ide

发明人： Osamu Mitomi ,  Kenji Aoki ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri ,  Akiyoshi Ide

IPC分类号： G02F1/035

CPC分类号： G02F1/0356 ,  G02F1/0316 ,  G02F2203/50

摘要： The invention provides an optical phase modulator having a substrate made of an electro-optical material, a signal electrode provided on the substrate and first and second ground electrodes provided on both sides of the signal electrode. The electrodes are provided so that a size of the first gap between the first ground electrode and the signal electrode is smaller than a size of a second gap between the second ground electrode and the signal electrode. Furthermore, an optical waveguide is provided in the first gap as an optical phase modulator and not provided in the second gap. A driving voltage required for the phase adjustments is thereby lowered, the impedance matching is easily made and excellent radio frequency property can be realized.

摘要翻译： 本发明提供一种光学相位调制器，其具有由电光材料制成的基板，设置在基板上的信号电极以及设置在信号电极两侧的第一和第二接地电极。 设置电极，使得第一接地电极和信号电极之间的第一间隙的尺寸小于第二接地电极和信号电极之间的第二间隙的尺寸。 此外，在第一间隙中设置光波导作为光相位调制器，并且不设置在第二间隙中。 相位调整所需的驱动电压因此降低，容易进行阻抗匹配，能够实现优异的射频特性。

公开(公告)号：US07532777B2

公开(公告)日：2009-05-12

申请号：US11842327

申请日：2007-08-21

申请人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

发明人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

IPC分类号： G02F1/035 ,  G02B6/10

CPC分类号： G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/32

摘要： An optical functional device has a slab type two-dimensional photonic crystal layer. The photonic crystal layer has a dielectric layer and a plurality of lattice columns each comprising dielectric pillars. A waveguide portion is provided in the photonic crystal layer. A ground electrode and a signal electrode are formed on the dielectric layer for applying a modulating voltage on light propagating in the waveguide portion. A layer of a high dielectric constant is laminated on the dielectric layer. A low dielectric portion is formed direct under the waveguide portion and the lattice columns 7A, 7B and 7C of at least first, second and third orders in distance with respect to said waveguide portion.

摘要翻译： 光学功能元件具有板状二维光子晶体层。 光子晶体层具有介电层和多个格子柱，每个晶格列包括介电柱。 波导部分设置在光子晶体层中。 在电介质层上形成接地电极和信号电极，以在波导部分中传播的光上施加调制电压。 在介电层上层叠高介电常数层。 低介电部分直接形成在波导部分下方，并且格子柱7A，7B和7C相对于所述波导部分至少第一，第二和第三阶数的距离。

公开(公告)号：US07529447B2

公开(公告)日：2009-05-05

申请号：US12121063

申请日：2008-05-15

申请人： Kenji Aoki ,  Osamu Mitomi ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

发明人： Kenji Aoki ,  Osamu Mitomi ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC分类号： G02B6/26

CPC分类号： G02B6/12 ,  G02B2006/12104 ,  G02B2006/12142 ,  G02B2006/12159 ,  G02F1/0316 ,  G02F1/035 ,  G02F1/225 ,  G02F2203/02

摘要： The present invention provides an optical waveguide device having a configuration such that the optical waveguide is folded back on an end area of the optical waveguide substrate to widen the modulation band. The optical waveguide device 1A includes a substrate body 2 made of an electro-optical material, optical waveguide 6, and modulation electrodes 3, 4 and 5 for applying a voltage on the optical waveguide 6. The optical waveguide 6 includes first primary areas 6e and 6f, a first curved area 7A, first folding-back areas 6g and 6h provided between the first curved area 7A and a folding-back point 8, second primary areas 6m and 6n, a second curved area 7B, and second folding-back areas 6j and 6k provided between the second curved area 7B and the folding-back point 8. At least a part of the signal electrode is provided in a folding-back region extending from the first curved area 7A and the second curved area 7B to the folding-back point 8.

摘要翻译： 本发明提供一种光波导器件，其具有使光波导折回到光波导基板的端部区域以扩宽调制带的结构。 光波导装置1A包括由电光材料制成的基板主体2，光波导6，以及用于在光波导6上施加电压的调制电极3,4和5.光波导6包括第一主区域6e和 如图6f所示，第一弯曲区域7A，设置在第一弯曲区域7A和折叠点8之间的第一折回区域6g和6h，第二主要区域6m和6n，第二弯曲区域7B和第二折回区域 6j和6k设置在第二弯曲区域7B和折叠点8之间。信号电极的至少一部分设置在从第一弯曲区域7A和第二弯曲区域7B延伸到折叠区域的折叠区域中 - 回点8。

公开(公告)号：US07382942B2

公开(公告)日：2008-06-03

申请号：US11557506

申请日：2006-11-08

申请人： Osamu Mitomi ,  Kenji Aoki ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

发明人： Osamu Mitomi ,  Kenji Aoki ,  Jungo Kondo ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC分类号： G02F1/295

CPC分类号： G02B6/125 ,  G02B2006/12097 ,  G02B2006/12104 ,  G02B2006/12119 ,  G02B2006/12142 ,  G02B2006/12159 ,  G02F1/0508 ,  G02F1/2255 ,  G02F1/3137

摘要： It is provided an optical waveguide device in which the radius of curvature of a curved part of an optical waveguide can be lowered and the radiation loss of light in the curved part can be reduced. An optical waveguide device 2 has a ferroelectric optical waveguide substrate and an optical waveguide 5 formed in or on the substrate and modulating electrodes 4A, 4B and 4C. The thickness of the optical waveguide substrate is 30 μm or smaller at least in a region where the optical waveguide is formed. The optical waveguide has curved part having a radius of curvature of 30 mm or smaller.

摘要翻译： 提供了一种光波导器件，其中可以降低光波导的弯曲部分的曲率半径，并且可以减少弯曲部分中的光的辐射损失。 光波导路装置2具有形成在基板中或基板上的铁电光波导基板和光波导路5，调制电极4A，4B，4B。光波导基板的厚度至少为30μm以下 形成光波导的区域。 光波导具有曲率半径为30mm以下的弯曲部。

公开(公告)号：US20080050082A1

公开(公告)日：2008-02-28

申请号：US11842327

申请日：2007-08-21

申请人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

发明人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

IPC分类号： G02B6/10

CPC分类号： G02F1/0356 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/32

摘要： An optical functional device 1 has a slab type two-dimensional photonic crystal layer 29. The layer 29 has a dielectric layer 4 and a plurality of lattice columns 5 each comprising dielectric pillars. A waveguide portion 6 is provided in the photonic crystal layer 29. A ground electrode 8 and a signal electrode 9 are formed on the dielectric layer 4 for applying a modulating voltage on light propagating in the waveguide portion 6. A layer 2 of a high dielectric constant is laminated on the dielectric layer 4. A low dielectric portion is formed direct under the waveguide portion 6 and the lattice columns 7a, 7B and 7C of at least first, second and third orders in distance with respect to said waveguide portion.

摘要翻译： 光学功能元件1具有板状二维光子晶体层29.层29具有电介质层4和多个格子列5，各列包括介电柱。 波导部分6设置在光子晶体层29中。接地电极8和信号电极9形成在电介质层4上，用于在波导部分6中传播的光上施加调制电压。高电介质层2 常数层压在电介质层4上。低介电部分直接形成在波导部分6的下方，并且晶格列7a，7b和7c相对于所述波导部分至少有第一，第二和第三阶数的距离 。

公开(公告)号：US20080025662A1

公开(公告)日：2008-01-31

申请号：US11841188

申请日：2007-08-20

申请人： Jungo Kondo ,  Osamu Mitomi ,  Kenji Aoki ,  Yuichi Iwata ,  Tetsuya Ejiri

发明人： Jungo Kondo ,  Osamu Mitomi ,  Kenji Aoki ,  Yuichi Iwata ,  Tetsuya Ejiri

IPC分类号： G02F1/295

CPC分类号： G02F1/2255 ,  G02F1/0123 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2203/20

摘要： An optical modulator is provided for modulating light propagating in a three-dimensional optical waveguide 5 by applying a voltage thereto. The optical modulator has the three-dimensional optical waveguide 5 including at least one pair of branch optical waveguides 5c and 5d, a multiplexing part 5e of the branch optical waveguides and an emission part 5f provided in the downstream of the multiplexing part, modulation electrodes 3A, 3B and 4 for applying a signal voltage for modulating light propagating in the three-dimensional optical waveguide 5, and guiding waveguides 6A and 6B for guiding primary mode light from the multiplexing part. Thickness of the substrate is 20 μm or less at least under the modulation electrodes, and an operation point of the optical modulator is controlled by changing, based on light output from the guiding waveguides, DC bias applied onto the modulation electrodes.

摘要翻译： 提供了一种光调制器，用于通过向其施加电压来调制在三维光波导5中传播的光。 光调制器具有三维光波导5，其包括至少一对分支光波导5c和5d，分支光波导的复用部分5e和设置在复用部分的下游的发射部分5f ，用于施加用于调制在三维光波导5中传播的光的信号电压的调制电极3A，3B和4，以及用于引导来自复用部分的初级模式光的导向波导6A和6B。 至少在调制电极下方，基板的厚度为20μm以下，通过根据导向波导的光输出，施加到调制电极上的直流偏压来改变光调制器的操作点。

公开(公告)号：US07660506B2

公开(公告)日：2010-02-09

申请号：US11750515

申请日：2007-05-18

申请人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

发明人： Osamu Mitomi ,  Yuichi Iwata ,  Jungo Kondo ,  Kenji Aoki ,  Tetsuya Ejiri

IPC分类号： G02B6/10

CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02F2202/32

摘要： An optical waveguide structure has a slab type photonic crystal and an optical waveguide provided in the photonic crystal. The photonic crystal has a slab of a dielectric film and a plurality of lattice columns each having dielectric pillars. The dielectric pillars included in the lattice columns at least in n'th order (n represents 1, 2, 3, 4 and 5) in distance with respect to said optical waveguide, respectively, has a planar shape of an equilateral polygon or exact circle. At least one of the dielectric pillars included in the lattice columns at least in n'th order (n represents 2, 3, 4 and 5) with respect to the optical waveguide has a size rn different from a fundamental size ro.

摘要翻译： 光波导结构具有平板型光子晶体和设置在光子晶体中的光波导。 光子晶体具有电介质膜和多个具有介电柱的晶格列的平板。 相对于所述光波导分别至少在第n级（n表示1,2,3,4和5）的晶格列中的介电柱分别具有等边多边形或精确圆的平面形状 。 包括在格子列中的至少一个介质柱相对于光波导至少第n级（n表示2,3,4和5）具有不同于基本尺寸ro的尺寸rn。

公开(公告)号：US07778497B2

公开(公告)日：2010-08-17

申请号：US12401753

申请日：2009-03-11

申请人： Osamu Mitomi ,  Kenji Aoki ,  Tetsuya Ejiri ,  Akiyoshi Ide ,  Jungo Kondo ,  Yuichi Iwata

发明人： Osamu Mitomi ,  Kenji Aoki ,  Tetsuya Ejiri ,  Akiyoshi Ide ,  Jungo Kondo ,  Yuichi Iwata

IPC分类号： G02F1/035 ,  G02B6/26

CPC分类号： G02F1/0356 ,  G02B6/12007

摘要： An optical modulator having an optical modulation part and a connection part for an optical fiber propagating light. The optical modulation part has a modulation substrate of an electro-optic material, a modulation optical waveguide formed on the modulation substrate, a high frequency interaction part for applying a voltage to the modulation optical waveguide to modulate the propagation of light, a first supporting substrate and a first adhesion layer for adhering the modulation substrate to the first supporting substrate. The connection part has a connection substrate of an electro-optic material, a connection optical waveguide formed on the connection substrate, a second supporting substrate, and a second adhesion layer for adhering the connection substrate to the second supporting substrate. The modulation substrate is adhered to the connection substrate. The first supporting substrate is adhered to the second supporting substrate. The modulation optical waveguide is connected to the connection optical waveguide.

摘要翻译： 一种具有光学调制部分和用于光纤传播光的连接部分的光调制器。 光调制部具有电光材料的调制基板，形成在调制基板上的调制光波导，向调制光波导施加电压以调制光的传播的高频相互作用部，第一支撑基板 以及用于将调制基板粘附到第一支撑基板的第一粘合层。 连接部具有电光材料的连接基板，形成在连接基板上的连接光波导，第二支撑基板和用于将连接基板粘接到第二支撑基板的第二粘合层。 调制基板粘附到连接基板。 第一支撑基板粘附到第二支撑基板。 调制光波导连接到连接光波导。