-
公开(公告)号：US06961493B2
公开(公告)日：2005-11-01
申请号：US10123872
申请日：2002-04-16
申请人： Osamu Mitomi , Takenori Ichigi , Masatsugu Oshima , Jun Okumura , Kenji Aoki , Masataka Yamashita
发明人： Osamu Mitomi , Takenori Ichigi , Masatsugu Oshima , Jun Okumura , Kenji Aoki , Masataka Yamashita
CPC分类号： G02F1/3137 , G02F1/011 , G02F1/0147
摘要： An optical device consisting of a core layer, a first clad layer in contact with the core layer, a second clad layer, third clad layer and at least one electrode for applying a certain voltage or supplying a certain current. The second clad layer is deposited on the third clad layer and the core layer is provided between the first clad layer and the second clad layer. The core layer, first clad layer, second clad layer and third clad layer consist of a material with a negative refractive index variation coefficient, and the third clad layer has a refractive index smaller than that of the second clad layer.
摘要翻译： 由芯层，与芯层接触的第一覆盖层，第二覆盖层，第三覆盖层和用于施加一定电压或提供一定电流的至少一个电极组成的光学器件。 第二覆层沉积在第三覆层上，芯层设置在第一覆层和第二覆层之间。 芯层，第一包层，第二包层和第三包层由具有负折射率变化系数的材料构成，第三包层的折射率小于第二包层的折射率。
-
公开(公告)号：US07184631B2
公开(公告)日：2007-02-27
申请号：US09948007
申请日：2001-09-06
CPC分类号： G02F1/3137 , G02B6/1228 , G02B6/125
摘要： An optical device includes an optical input waveguide, a branch/cross waveguide, an optical output waveguide and connection waveguides that connect the optical input and optical output waveguides to the cross/branch waveguide. The spot size of light propagating through the cross/branch waveguide is larger than the spot size of light propagating through optical input waveguides, the optical output waveguides, or the connection waveguides.
摘要翻译： 光学装置包括光输入波导，分支/交叉波导，光输出波导和将光输入和光输出波导连接到交叉/分支波导的连接波导。 通过交叉/分支波导传播的光的光斑尺寸大于通过光输入波导，光输出波导或连接波导传播的光的光斑尺寸。
-
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
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：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
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。
-
-
-
-
-
-
-
-
-
搜索结果
55 条记录 (耗时 0.033 秒)
