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。

公开(公告)号：US07389030B2

公开(公告)日：2008-06-17

申请号：US11671112

申请日：2007-02-05

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

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

IPC分类号： G02B6/10

CPC分类号： G02F1/035 ,  G02F1/0508

摘要： An optical functional device comprises a dielectric substrate 5, a ferroelectric thin layer 10 provided on the dielectric substrate 5 and comprising a material having electro-optical effect and an electrode 3A, 3B provided on the ferroelectric thin layer 10. A part of the ferroelectric thin layer 10 functions as a core 9 of the optical wave guide and the dielectric substrate functions as a clad for the optical waveguide. The optical waveguide 9 constitutes a multi-mode waveguide in the direction “D” of depth of the ferroelectric thin layer.

摘要翻译： 光功能元件包括电介质基片5，设置在电介质基片5上并包含具有电光效应的材料和设置在铁电薄层10上的电极3A，3B的铁电薄层10。 铁电薄层10的一部分用作光波导的芯9，并且电介质基板用作光波导的包层。 光波导9构成铁电薄层的深度方向“D”的多模波导。

公开(公告)号：US20070269176A1

公开(公告)日：2007-11-22

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：US07995872B2

公开(公告)日：2011-08-09

申请号：US12499921

申请日：2009-07-09

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： G02F1/035 ,  G02B6/12 ,  G02B6/26

CPC分类号： G02F1/225 ,  G02F2201/16

摘要： An optical modulator component 2 has a substrate 4 for modulation made of an electro-optical material and having a joining face 4b; an optical waveguide 6 provided in or on the substrate 4 and having at least one pair of branched portions 6c; and a radio-frequency interaction portion 11 applying a voltage on the respective branched portions 6c to modulate light propagating through the branched portions. The optical waveguide 6 has end faces 15A, 15B, 15C and 15D present on the joining face 4b of the substrate 4 for modulation.

摘要翻译： 光调制器部件2具有用于由电光材料制成并具有接合面4b的调制用基板4; 设置在基板4中或基板4上并具有至少一对分支部6c的光波导6; 以及在各分支部6c上施加电压以调制通过分支部分传播的光的射频相互作用部分11。 光波导6具有存在于用于调制的基板4的接合面4b上的端面15A，15B，15C和15D。

公开(公告)号：US07689066B2

公开(公告)日：2010-03-30

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： G02F1/035 ,  G02B6/26

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。 光调制器具有包括至少一对分支光波导5c和5d的三维光波导5，分支光波导的复用部分5e和设置在复用部分下游的发射部分5f，调制电极3A ，3B和4，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，以及引导波导6A和6B以引导来自复用部分的初级模式光。 至少在调制电极下方，基板的厚度为20μm以下，通过基于来自引导波导的光的输出，施加到调制电极上的DC偏置来改变光调制器的操作点。

公开(公告)号：US20090290830A1

公开(公告)日：2009-11-26

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：US07787773B1

公开(公告)日：2010-08-31

申请号：US11520987

申请日：2006-09-14

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： H04B10/00

CPC分类号： G01S13/87 ,  G01S7/352 ,  G01S13/34 ,  G01S13/931 ,  G01S2013/9321 ,  G01S2013/9325 ,  G01S2013/9375 ,  G02F1/0516

摘要： It is provided a radio oscillating system for oscillating a radio signal. The system has an optical modulator for oscillation, a modulating means for inputting a modulating signal of a frequency of fm into the optical modulator to modulate a carrier wave so as to interpose sideband waves onto the carrier wave at positions shifted with respect to the frequency of the carrier wave by the frequency “fm”; and an optical receiver for oscillation for receiving beam from the optical modulator and converting the beam into an electrical signal. The system further has a radiating means for radiating radio signal of a frequency of 2fm based on the electrical signal. An input voltage Vp-p applied on the optical modulator is 1.0 times or more and 1.99 times or less of a half-wavelength voltage Vπ of the optical modulator.

摘要翻译： 提供了一种用于振荡无线电信号的无线电振荡系统。 该系统具有用于振荡的光调制器，用于将fm频率的调制信号输入到光调制器中以调制载波的调制装置，以便在相对于频率的位置偏移的位置处将边带波插入到载波上 载波频率“fm”; 以及用于振荡的光接收器，用于从光调制器接收光束并将光束转换成电信号。 该系统还具有用于基于电信号辐射频率为2fm的无线电信号的辐射装置。 施加在光调制器上的输入电压Vp-p为半波长电压V＆pgr的1.0倍以上且1.99倍以下。 的光调制器。

公开(公告)号：US20100201562A1

公开(公告)日：2010-08-12

申请号：US11520987

申请日：2006-09-14

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： G01S13/34

CPC分类号： G01S13/87 ,  G01S7/352 ,  G01S13/34 ,  G01S13/931 ,  G01S2013/9321 ,  G01S2013/9325 ,  G01S2013/9375 ,  G02F1/0516

摘要： It is provided a radio oscillating system for oscillating a radio signal. The system has an optical modulator for oscillation, a modulating means for inputting a modulating signal of a frequency of fm into the optical modulator to modulate a carrier wave so as to interpose sideband waves onto the carrier wave at positions shifted with respect to the frequency of the carrier wave by the frequency “fm”; and an optical receiver for oscillation for receiving beam from the optical modulator and converting the beam into an electrical signal. The system further has a radiating means for radiating radio signal of a frequency of 2 fm based on the electrical signal. An input voltage Vp−p applied on the optical modulator is 1.0 times or more and 1.99 times or less of a half-wavelength voltage Vπ of the optical modulator.

摘要翻译： 提供了一种用于振荡无线电信号的无线电振荡系统。 该系统具有用于振荡的光调制器，用于将fm频率的调制信号输入到光调制器中以调制载波的调制装置，以便在相对于频率的位置偏移的位置处将边带波插入到载波上 载波频率“fm”; 以及用于振荡的光接收器，用于从光调制器接收光束并将光束转换成电信号。 该系统还具有用于基于电信号辐射频率为2fm的无线电信号的辐射装置。 施加在光调制器上的输入电压Vp-p为半波长电压V＆pgr的1.0倍以上且1.99倍以下。 的光调制器。

公开(公告)号：US20080226215A1

公开(公告)日：2008-09-18

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： G02F1/035

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 includes a substrate body made of an electro-optical material, optical waveguide, and modulation electrodes for applying a voltage on the optical waveguide. The optical waveguide includes first primary areas, a first curved area, first folding-back areas provided between the first curved area and a folding-back point, second primary areas, a second curved area, and second folding-back areas provided between the second curved area and the folding-back point. At least a part of the signal electrode is provided in a folding-back region extending from the first curved area and the second curved area to the folding-back point.

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。 光波导器件包括由电光材料制成的衬底体，光波导，以及用于在光波导上施加电压的调制电极。 光波导包括第一主区域，第一弯曲区域，设置在第一弯曲区域和折叠点之间的第一折回区域，第二主区域，第二弯曲区域和设置在第二弯曲区域之间的第二折回区域 弯曲区域和折叠点。 信号电极的至少一部分设置在从第一弯曲区域和第二弯曲区域延伸到折回点的折回区域中。