公开(公告)号：US08411349B2

公开(公告)日：2013-04-02

申请号：US13022896

申请日：2011-02-08

申请人： Osamu Mitomi ,  Yasunori Iwasaki ,  Yuji Hori ,  Kenji Aoki ,  Jungo Kondo

发明人： Osamu Mitomi ,  Yasunori Iwasaki ,  Yuji Hori ,  Kenji Aoki ,  Jungo Kondo

IPC分类号： G02F1/01 ,  G02F1/03 ,  H04B10/04

CPC分类号： G02F1/2255

摘要： An optical modulator includes an optical modulation substrate, an electrical length adjusting substrate, a package containing the substrates, and a plurality of input ports for inputting high frequency electrical signals. The optical modulation substrate includes a substrate body made of an electro-optic material, a ground electrode and a plurality of signal electrodes provided on the substrate body, optical waveguides propagating lights interacting with the signal electrodes, respectively, and electrode input ports inputting the high frequency electrical signals into the signal electrodes, respectively. The signal electrode includes an interacting part, an input end part provided between the electrode input port and interacting part, and a terminal part. The electrical length adjusting substrate includes conductive lines connected to the input ports for inputting the high frequency electrical signals, respectively. The conductive lines have electrical lengths different from each other for adjusting the phase differences among the ports.

摘要翻译： 光调制器包括光调制基板，电长度调节基板，包含基板的封装以及用于输入高频电信号的多个输入端口。 光调制基板包括由电光材料制成的基板主体，接地电极和设置在基板主体上的多个信号电极，分别与信号电极相互作用的光波导传播光和输入高电平的电极输入端 频率电信号分别进入信号电极。 信号电极包括相互作用部分，设置在电极输入端口和相互作用部分之间的输入端部分和端子部分。 电长度调节基板包括分别连接到用于输入高频电信号的输入端口的导线。 导线具有彼此不同的电长度，用于调节端口之间的相位差。

公开(公告)号：US20110262071A1

公开(公告)日：2011-10-27

申请号：US13178964

申请日：2011-07-08

申请人： Osamu Mitomi ,  Kenji Aoki ,  Yuji Hori ,  Jungo Kondo ,  Yasunori Iwasaki

发明人： Osamu Mitomi ,  Kenji Aoki ,  Yuji Hori ,  Jungo Kondo ,  Yasunori Iwasaki

IPC分类号： G02F1/035 ,  G02B6/125

CPC分类号： G02B6/125 ,  G02B6/1228 ,  G02B6/29352 ,  G02B2006/12159 ,  G02F1/0508

摘要： An optical waveguide is formed on a ferroelectric substrate having a thickness of 20 μm or less by diffusion of a dopant or ion exchange. The optical waveguide has a non-branched section 2a operating on single mode and a pair of branched sections branched from the non-branched section 2a. Each of the branched sections has a connecting part 7 extending from a branching end 10 and a multi mode propagating part 8 continuously formed from the connecting part 7. The multi mode propagating part 8 has a width “m” larger than a width “t” of the non-branched section. A width “p” of the connecting part increases from the non-branched section 2a toward the multi mode propagating part 8.

摘要翻译： 通过掺杂剂或离子交换剂的扩散，在厚度为20μm以下的强电介质基板上形成光波导。 光波导具有在单模上工作的非分支部分2a和从非分支部分2a分支的一对分支部分。 每个分支部分具有从分支端10延伸的连接部分7和从连接部分7连续形成的多模传播部分8.多模传播部分8具有大于宽度“t”的宽度“m” 的非支化部分。 连接部的宽度“p”从非分支部2a向多模传播部8增大。

公开(公告)号：US08233752B2

公开(公告)日：2012-07-31

申请号：US12846076

申请日：2010-07-29

申请人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Kenji Aoki

发明人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Kenji Aoki

IPC分类号： G02F1/35 ,  G02B6/42 ,  G02B6/10

CPC分类号： G02B6/125 ,  G02F1/225 ,  G02F2001/212

摘要： An optical waveguide device includes a substrate of a ferroelectric material, at least a pair of electrodes 4A, 4B provided on one main face of the substrate, and a channel-type optical waveguide 5A formed in a gap 1 of the pair of the electrodes. The optical waveguide 5A has a curved part 15. A central line C of the gap 1 is provided outside of a center line WC of the optical waveguide with respect to the center O of curvature of the curved part 15.

摘要翻译： 光波导器件包括铁电材料的基板，设置在基板的一个主面上的至少一对电极4A，4B，以及形成在该对电极的间隙1中的沟道型光波导5A。 光波导5A具有弯曲部15.间隙1的中心线C相对于弯曲部15的曲率中心O设置在光波导的中心线WC的外侧。

公开(公告)号：US20100329601A1

公开(公告)日：2010-12-30

申请号：US12846076

申请日：2010-07-29

申请人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Kenji Aoki

发明人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Kenji Aoki

IPC分类号： G02F1/035

CPC分类号： G02B6/125 ,  G02F1/225 ,  G02F2001/212

摘要： An optical waveguide device includes a substrate of a ferroelectric material, at least a pair of electrodes 4A, 4B provided on one main face of the substrate, and a channel-type optical waveguide 5A formed in a gap 1 of the pair of the electrodes. The optical waveguide 5A has a curved part 15. A central line C of the gap 1 is provided outside of a center line WC of the optical waveguide with respect to the center O of curvature of the curved part 15.

摘要翻译： 光波导器件包括铁电材料的基板，设置在基板的一个主面上的至少一对电极4A，4B，以及形成在该对电极的间隙1中的沟道型光波导5A。 光波导5A具有弯曲部15.间隙1的中心线C相对于弯曲部15的曲率中心O设置在光波导的中心线WC的外侧。

公开(公告)号：US07764851B2

公开(公告)日：2010-07-27

申请号：US12260276

申请日：2008-10-29

申请人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Hiroki Kobayashi

发明人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Hiroki Kobayashi

IPC分类号： G02F1/295

CPC分类号： G02F1/2255 ,  G02B6/4214 ,  G02B2006/12104 ,  G02B2006/12142 ,  G02F2203/21

摘要： An optical modulator has an optical waveguide substrate having a pair of principal surfaces, a pair of side surfaces an incident face and exit face of light, the substrate being composed of a ferroelectric material; a channel optical waveguide having at least a pair of branch sections, a multiplexing section of the branch sections and an exit section provided on the downstream of the multiplexing section, the waveguide being formed on the principal surface of the optical waveguide substrate; a modulation electrode electrodes for applying a signal voltage for modulating light propagating in the branch sections; and a reflective groove for reflecting leaked light of off-mode emitted from the multiplexing section and emitting the light from a principal surface of the optical waveguide substrate. An operating point of the optical modulator is controlled by changing a DC bias applied on the modulation electrode based on optical output of the leaked light of off-mode.

摘要翻译： 光调制器具有光波导基板，其具有一对主表面，一对侧表面，入射面和光出射面，该基板由铁电材料构成; 具有至少一对分支部分的通道光波导，分支部分的复用部分和设置在复用部分的下游的出口部分，波导形成在光波导基板的主表面上; 用于施加用于调制在所述分支部分中传播的光的信号电压的调制电极电极; 以及反射槽，用于反射从多路复用部分发射的偏离模式的泄漏光，并从光波导基板的主表面发射光。 通过根据偏离模式的泄漏光的光输出改变施加在调制电极上的直流偏压来控制光调制器的工作点。

公开(公告)号：US20090142015A1

公开(公告)日：2009-06-04

申请号：US12260276

申请日：2008-10-29

申请人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Hiroki Kobayashi

发明人： Akiyoshi Ide ,  Jungo Kondo ,  Osamu Mitomi ,  Yasunori Iwasaki ,  Hiroki Kobayashi

IPC分类号： G02F1/035

CPC分类号： G02F1/2255 ,  G02B6/4214 ,  G02B2006/12104 ,  G02B2006/12142 ,  G02F2203/21

摘要： An optical modulator 20 has an optical waveguide substrate 1 having a pair of principal surfaces 1a, 1c, a pair of side surfaces 1b and an incident face 1d and exit face 1e of light, the substrate being composed of a ferroelectric material; a channel optical waveguide 4 having at least a pair of branch sections 4b, a multiplexing section 6 of the branch sections and an exit section 4c provided on the downstream of the multiplexing section, the waveguide being formed on the principal surface 1a; a modulation electrode 2, 3 for applying a signal voltage for modulating light propagating in the branch sections; and a reflective groove 7 for reflecting leaked light of off-mode emitted from the multiplexing section 6 and emitting the light from the one principal surface 1a. An operating point of the optical modulator is controlled by changing a DC bias applied on the modulation electrode based on optical output of the leaked light of off-mode.

摘要翻译： 光调制器20具有光波导基板1，该光波导基板1具有一对主表面1a，1c，一对侧表面1b和入射面1d和光出射面1e，该基板由铁电材料构成; 具有至少一对分支部分4b的通道光波导4，分支部分的多路复用部分6和设置在多路复用部分下游的出口部分4c，波导形成在主表面1a上; 调制电极2,3，用于施加用于调制在分支部分中传播的光的信号电压; 以及反射槽7，用于反射从多路复用部分6发射的偏离模式的泄漏光，并从一个主表面1a发射光。 通过根据偏离模式的泄漏光的光输出改变施加在调制电极上的直流偏压来控制光调制器的工作点。

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：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：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。