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1. 发明授权

US08411349B2 Optical modulator 有权
标题翻译：光调制器
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。

2. 发明申请

US20110262071A1 BRANCHED OPTICAL WAVEGUIDE, OPTICAL WAVEGUIDE SUBSTRATE AND OPTICAL MODULATOR 审中-公开
标题翻译：分支光学波导，光波导基板和光学调制器
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。

3. 发明授权

US08233752B2 Curved optical waveguide in gap between electrodes device 有权
标题翻译：电极间间隙中的弯曲光波导
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。

4. 发明申请

US20100329601A1 OPTICAL WAVEGUIDE DEVICE 有权
标题翻译：光波器件
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。

5. 发明授权

US07764851B2 Optical modulators 失效
标题翻译：光调制器
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。

6. 发明申请

US20090142015A1 OPTICAL MODULATORS 失效
标题翻译：光学调制器
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。

7. 发明授权

US07660506B2 Optical waveguide structures 有权
标题翻译：光波导结构
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。

8. 发明授权

US07502530B2 Optical waveguide devices and traveling wave type optical modulators 有权
标题翻译：光波导器件和行波型光学调制器
公开(公告)号：US07502530B2
公开(公告)日：2009-03-10
申请号：US10568888
申请日：2004-08-19
申请人： Jungo Kondo , Atsuo Kondo , Kenji Aoki , Osamu Mitomi
发明人： Jungo Kondo , Atsuo Kondo , Kenji Aoki , Osamu Mitomi
IPC分类号： G02F1/035
CPC分类号： G02F1/0356 , G02F1/2255 , G02F2203/21
摘要： A device 4 has a substrate 5, an optical waveguide 2 and modulation electrodes 1A, 1B, 1C. The substrate 5 is made of an electro-optic material and has a thickness of ≦30 μm at least in a region where the modulation electrode applies an electric field. The device has a ridge generated when the optical waveguide is formed, and the ridge has a height H (angstrom) and a width “W” (μm) whose product (H×W) is 7150 angstrom·μm or smaller to realize single mode propagation of light in the optical waveguide. The wave guide has branched parts in the region where the modulation electrode applied an electric field. The deviation of positions of peaks and bottoms in the extinction ratio curve can be reduced, by increasing the distance of the branched parts of the optical waveguide to ≧46 μm.
摘要翻译：器件4具有基板5，光波导2和调制电极1A，1B，1C。基板5由电光材料制成，至少在调制电极施加电场的区域中具有<=30μm的厚度。该器件具有在形成光波导时产生的脊，脊的高度为H（埃），宽度“W”（母），其乘积（H×W）为7150埃或更小，以实现单模传播在光波导中的光。波导在调制电极施加电场的区域中具有分支部分。通过将光波导的分支部分的距离增加到> =46μm，可以减少消光比曲线中的峰值和底部位置的偏差。

9. 发明申请

US20070081766A1 OPTICAL WAVEGUIDE DEVICE 有权
标题翻译：光波器件
公开(公告)号：US20070081766A1
公开(公告)日：2007-04-12
申请号：US11560144
申请日：2006-11-15
申请人： Kenji AOKI , Jungo Kondo , Atsuo Kondo , Osamu Mitomi
发明人： Kenji AOKI , Jungo Kondo , Atsuo Kondo , Osamu Mitomi
IPC分类号： G02F1/035
CPC分类号： G02F1/2255 , G02F1/0356 , G02F2203/25
摘要： A voltage is applied on a first branch 3a by a first ground electrode 10 and a signal electrode 11, and a voltage is applied on a second branch 3b by a second ground electrode 12A and the signal electrode 11. A first gap 13 is formed between the first ground electrode 10 and the signal electrode 11, and a second gap 14 is formed between the second ground electrode 12A and the signal electrode 11. The first gap 13 and the second gap 14 are divided into voltage applying portions 13a, 14a, feed-through portions and connection portions 13b, 14b therebetween, respectively, and satisfy the formula: G12/G11≦G22/G21
摘要翻译：第一接地电极10和信号电极11对第一分支3a施加电压，并且通过第二接地电极12A和信号电极11将电压施加在第二分支3b上。第一间隙13 形成在第一接地电极10和信号电极11之间，并且在第二接地电极12A和信号电极11之间形成第二间隙14.第一间隙13和第二间隙14被分成电压施加部分13 a，14a，馈通部分和连接部分13b，14b，分别满足下列公式：G 12 / G 11 <= G _{21 表示连接部分侧的端部13c处的第一间隙13的宽度，G 22表示在第二间隙14的端部14c处的第二间隙14的宽度连接部分侧面14c，G31表示电压施加部分13a处的第一间隙13的宽度，G 32表示第二间隙14的宽度电压施加部分14a。}

10. 发明授权

US07002731B2 Optical modulators 有权
标题翻译：光调制器
公开(公告)号：US07002731B2
公开(公告)日：2006-02-21
申请号：US10683267
申请日：2003-10-14
申请人： Osamu Mitomi , Kenji Aoki , Jungo Kondo , Atsuo Kondo
发明人： Osamu Mitomi , Kenji Aoki , Jungo Kondo , Atsuo Kondo
IPC分类号： G02F1/00 , G02F1/035
CPC分类号： G02F1/0356 , G02F1/0121
摘要： An object of the present invention is to improve the modulation efficiency of an optical modulator in a high frequency band while satisfying the velocity matching condition. An optical modulator is provided having an optical waveguide for propagating light, an electrode for applying a voltage on the waveguide for modulating the light, a signal source electrically connected to the electrode and a terminating resistance electrically connected to the electrode. The signal source has a characteristic impedance Zi and the terminating resistance has an impedance Zl satisfying the formula (Zi
摘要翻译：本发明的一个目的是在满足速度匹配条件的同时提高高频带中光调制器的调制效率。提供一种光调制器，其具有用于传播光的光波导，用于在波导上施加电压以调制光的电极，电连接到电极的信号源和电连接到电极的终端电阻。信号源具有特性阻抗Zi，并且终端电阻具有满足公式（Zi

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