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71. 发明申请

US20090175304A1 Two-Dimensional Photonic Crystal Surface Emitting Laser Light Source 有权
标题翻译：二维光子晶体表面发射激光光源
公开(公告)号：US20090175304A1
公开(公告)日：2009-07-09
申请号：US12225530
申请日：2007-03-30
申请人： Susumu Noda , Yoshitaka Kurosaka , Eiji Miyai , Dai Ohnishi , Wataru Kunishi
发明人： Susumu Noda , Yoshitaka Kurosaka , Eiji Miyai , Dai Ohnishi , Wataru Kunishi
IPC分类号： H01S5/00
CPC分类号： H01S5/183 , H01S5/105
摘要： A two-dimensional photonic crystal surface emitting laser light source according to the present invention includes a two-dimensional photonic crystal made of a plate-shaped body material provided with a periodic arrangement of identically-shaped holes 242A and an active layer provided on one side of the two-dimensional photonic crystal. The hole 242A is not located on a first half-line 251 extending from the gravity center G1 of the hole in a direction within the plane of the two-dimensional photonic crystal, while the hole 242A is located at least on a portion of a second half-line 252 extending from the gravity center G1 in the direction opposite to the first half-line 251. Injecting electric charges into the active layer generates light, which creates an electric field that encircles the gravity center G1 within the two-dimensional photonic crystal. For a given point on the second half-line 252 at which the hole 242A is located, there is no hole at a point that is symmetrical to the aforementioned point with respect to the gravity center G1, so that there is a difference in the refractive index between the two points. Thus, the electric field vectors at the two points are prevented from canceling each other due to destructive interference, so that the resultant laser light is stronger than conventional examples.
摘要翻译：根据本发明的二维光子晶体表面发射激光光源包括由板状主体材料制成的二维光子晶体，该二维光子晶体设置有相同形状的孔242A和设置在一侧的活性层的周期性排列的二维光子晶体。孔242A不位于从二维光子晶体的平面内的孔的重心G1延伸的第一半线251上，而孔242A至少位于二次光子晶体的一部分上从重心G1向与第一半线251相反的方向延伸的半线252.向有源层注入电荷产生光，其产生围绕二维光子晶体内的重心G1的电场。对于孔242A所在的第二半线252上的给定点，在相对于重心G1与上述点对称的点处没有孔，使得折射率两点之间的指标。因此，由于相消干涉，防止两点处的电场矢量彼此抵消，使得所得到的激光比传统例子更强。

72. 发明申请

US20090135871A1 Two-Dimensional Photonic Crystal Surface Emitting Laser 审中-公开
标题翻译：二维光子晶体表面发射激光器
公开(公告)号：US20090135871A1
公开(公告)日：2009-05-28
申请号：US12225169
申请日：2007-03-20
申请人： Susumu Noda , Eiji Miyai , Kyosuke Sakai , Dai Ohnishi , Wataru Kunishi
发明人： Susumu Noda , Eiji Miyai , Kyosuke Sakai , Dai Ohnishi , Wataru Kunishi
IPC分类号： H01S5/18
CPC分类号： H01S5/18355 , G11B7/127 , H01S5/026 , H01S5/105
摘要： An objective of the present invention is to provide a laser capable of producing a radially polarized laser beam with an annular cross section. A laser oscillator 60 including an active layer 53 and two-dimensional photonic crystal 55 with circular holes 552 arranged in a square lattice pattern is provided between two electrodes 571 and 572. A first polarization control layer 581, which functions as a half-wave plate, and a second polarization control layer 582, which functions as a half-wave plate with a fast axis 592 extending at an angle of 45° to that of the first polarization control layer 581, are located on the laser oscillator 60. When a voltage is applied between the electrodes, a circumferentially polarized annular laser beam is emitted from the laser oscillator 60. When passing through the first polarization control layer 581 and the second polarization control layer 582, the laser beam is converted to a radially polarized beam. The resultant laser beam can be converged by a focusing lens to achieve a diameter smaller than the diffraction limit. Such a narrow beam is suitable for an optical pickup or many other devices.
摘要翻译：本发明的目的是提供一种能够制造具有环形横截面的径向偏振激光束的激光器。在两个电极571和572之间设置包括活性层53和具有以正方形格子图案排列的圆形孔552的二维光子晶体55的激光振荡器60.第一偏振控制层581用作半波片，并且作为半波片的第二偏光控制层582位于激光振荡器60上，该半波片具有与第一偏振控制层581成45°角延伸的快轴592。施加在电极之间，从激光振荡器60发射周向极化的环形激光束。当通过第一偏振控制层581和第二偏振控制层582时，将激光束转换成径向偏振光束。所得到的激光束可以被聚焦透镜会聚，以获得小于衍射极限的直径。这种窄光束适用于光学拾取器或许多其他装置。

73. 发明申请

US20090135869A1 Surface-emitting laser light source using two-dimensional photonic crystal 审中-公开
标题翻译：表面发射激光光源采用二维光子晶体
公开(公告)号：US20090135869A1
公开(公告)日：2009-05-28
申请号：US11991403
申请日：2006-09-05
申请人： Susumu Noda , Eiji Miyai , Dai Ohnishi
发明人： Susumu Noda , Eiji Miyai , Dai Ohnishi
IPC分类号： H01S3/16 , H01L21/02
CPC分类号： H01S5/105 , H01S5/0425 , H01S5/18308 , H01S5/18358 , H01S2301/18
摘要： The present invention intends to provide a surface-emitting laser light source using a two-dimensional photonic crystal in which the efficiency of extracting light in a direction perpendicular to the surface is high. In a laser light source provided with a two-dimensional photonic crystal layer created from a plate-shaped matrix body in which a large number of holes are periodically arranged and an active layer arranged on one side of the two-dimensional photonic crystal layer, the holes are created to be columnar with a predetermined cross-sectional shape such as a circular shape, and the main axis of each of the columnar holes is tilted to a surface of the matrix body. When provided with this two-dimensional photonic crystal layer, the surface-emitting laser source using a two-dimensional photonic crystal has a Q⊥ value (i.e. a Q value in a direction perpendicular to the surface) of several thousands, which is suitable for an oscillation of laser light, and the efficiency of extracting light is high in the direction perpendicular to the surface.
摘要翻译：本发明旨在提供一种使用二维光子晶体的表面发射激光光源，其中在与表面垂直的方向上提取光的效率高。在设置有由周期性排列大量孔的板状矩阵体形成的二维光子晶体层和配置在二维光子晶体层一侧的有源层的激光光源中，产生具有预定横截面形状的柱状的孔，例如圆形，并且每个柱孔的主轴倾斜到矩阵体的表面。当提供这种二维光子晶体层时，使用二维光子晶体的表面发射激光源具有几千个Q⊥值（即，垂直于表面的方向的Q值），其适用于激光的振荡，并且在垂直于表面的方向上提取光的效率高。

74. 发明申请

US20090074024A1 Photonic crystal laser 有权
标题翻译：光子晶体激光器
公开(公告)号：US20090074024A1
公开(公告)日：2009-03-19
申请号：US12230494
申请日：2008-08-29
申请人： Susumu Noda , Yoshitaka Kurosaka , Kyosuke Sakai , Eiji Miyai , Dai Ohnishi , Wataru Kunishi
发明人： Susumu Noda , Yoshitaka Kurosaka , Kyosuke Sakai , Eiji Miyai , Dai Ohnishi , Wataru Kunishi
IPC分类号： H01S5/026
CPC分类号： H01S5/10 , G02B2006/1213 , G11B7/0903 , G11B7/127 , H01S5/105 , H01S5/1215 , H01S5/1231
摘要： A laser capable of emitting multiple laser beams is provided. A two-dimensional photonic crystal laser according to the present invention has a laminated structure including an active layer, a first photonic crystal layer having a periodic distribution of refractive index with a first period, and a second photonic crystal layer having a periodic distribution of refractive index with a second period that differs from the first period. This two-dimensional photonic crystal laser can emit a main beam traveling in a direction perpendicular to the two-dimensional photonic crystals and side beams each traveling in a direction inclined with respect to the main beam. These beams can be used, for example, in a recording/reproducing device by means of an optical disk, the main beam being used for recording/reproducing information and the side beams for following up the track.
摘要翻译：提供了能够发射多个激光束的激光器。根据本发明的二维光子晶体激光器具有叠层结构，其包括有源层，具有第一周期的折射率的周期性分布的第一光子晶体层和具有折射率的周期性分布的第二光子晶体层第二期的指数与第一期不同。该二维光子晶体激光器可以发射在垂直于二维光子晶体的方向上行进的主光束和每个沿相对于主光束倾斜的方向行进的侧光束。这些光束例如可以通过光盘用于记录/再现装置中，主光束用于记录/再现信息，并且侧光束用于跟踪轨道。

75. 发明申请

US20070177647A1 Surface-emitting laser light source using two-dimensional photonic crystal 有权
标题翻译：表面发射激光光源采用二维光子晶体
公开(公告)号：US20070177647A1
公开(公告)日：2007-08-02
申请号：US10591035
申请日：2005-03-04
申请人： Susumu Noda , Eiji Miyai , Dai Onishi
发明人： Susumu Noda , Eiji Miyai , Dai Onishi
IPC分类号： H01S5/00 , H01S3/04
CPC分类号： H01S5/10 , H01S5/105 , H01S5/18 , H01S5/187 , H01S2301/14 , H01S2301/18
摘要： The present invention intends to provide a surface-emitting laser light source capable of generating a linearly polarized laser light having a single-lobed beam profile that takes the largest intensity value in its central area. A two-dimensional photonic crystal consisting of a plate member 31 with holes 311 or 312 arranged in a square lattice pattern is provided on one side of an active layer 23. The hole 311 or 312 is designed so that its plane shape on the emission side (plane “B”) is smaller than that on the active layer side (plane “C”). The center of gravity of the shape on plane “B” is displaced from that of the shape on plane “C” in the in-plane direction. This design lowers the degree of the in-plane symmetry of the two-dimensional photonic crystal, so that a linearly polarized laser light having a single lobe is obtained.
摘要翻译：本发明旨在提供一种表面发射激光光源，其能够产生具有在其中心区域中具有最大强度值的单裂片束轮廓的线偏振激光。在有源层23的一侧设置由平板构件31构成的二维光子晶体，该板构件31具有以方形格子图案排列的孔311或312。孔311或312被设计为使得其在发射侧（平面“B”）上的平面形状小于有源层侧（平面“C”）上的平面形状。平面“B”上的形状的重心与平面“C”上的形状在面内方向上移位。这种设计降低了二维光子晶体的平面内对称度，从而获得具有单个波瓣的线偏振激光。

76. 发明申请

US20060018594A1 Optical delay circuit, integrated optical device, and method of manufacturing integrated optical device 失效
标题翻译：光延迟电路，集成光器件及集成光器件制造方法
公开(公告)号：US20060018594A1
公开(公告)日：2006-01-26
申请号：US11185027
申请日：2005-07-20
申请人： Atsushi Sugitatsu , Tatsuo Hatta , Susumu Noda
发明人： Atsushi Sugitatsu , Tatsuo Hatta , Susumu Noda
IPC分类号： G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225 , G02B6/2821
摘要： An optical delay circuit includes a plurality of defect waveguides arranged in parallel and including a line-shaped defect in a periodic refractive-index distribution structure of a photonic crystal. The defect waveguides include a multiplexing/demultiplexing portion in which the defect waveguides are arranged close to each other to multiplex and demultiplex light; and an optical delay portion extending from the multiplexing/demultiplexing portion, in which the defect waveguides are arranged with a predetermined distance therebetween so that light propagating in any of the defect waveguides does not interfere with light propagating in the other defect waveguides. Each of the waveguides has a different configuration.
摘要翻译：光延迟电路包括平行布置并包括光子晶体的周期性折射率分布结构中的线状缺陷的多个缺陷波导。缺陷波导包括其中缺陷波导彼此靠近布置以复用和解复用光的复用/解复用部分; 以及从复用/解复用部分延伸的光学延迟部分，其中缺陷波导以其间具有预定距离布置，使得在任何缺陷波导中传播的光不干扰在其它缺陷波导中传播的光。每个波导具有不同的配置。

77. 发明授权

US06738551B2 Two-dimensional photonic crystal, and multiplexer/demultiplexer using the same 有权
标题翻译：二维光子晶体，以及使用其的多路复用器/解复用器
公开(公告)号：US06738551B2
公开(公告)日：2004-05-18
申请号：US09814728
申请日：2001-03-23
申请人： Susumu Noda , Alongkarn Chutinan , Daisuke Miyauchi , Yoshikazu Narumiya
发明人： Susumu Noda , Alongkarn Chutinan , Daisuke Miyauchi , Yoshikazu Narumiya
IPC分类号： G02B610
CPC分类号： G02B6/1225 , B82Y20/00 , G02B6/12007
摘要： In a 2D photonic crystal waveguide comprising a 2D photonic crystal structure based on a slab (11) formed of a material having a higher refractive index than air, in which a material (16) having a lower refractive index than the slab material is periodically arrayed to provide a refractive index distribution, a photonic crystal waveguide is created by forming a line defect (12), which functions as a waveguide, in the periodic array of photonic crystal, and at least one point defect (14) is disposed adjacent the photonic crystal waveguide to act as a disorder in the periodic array of photonic crystal. The point defect functions as a light or electromagnetic radiation outlet/inlet port for trapping light or electromagnetic radiation of a selected wavelength among light or electromagnetic radiation propagating through the waveguide and radiating it, or trapping light or electromagnetic radiation of a selected wavelength from the exterior and introducing it into the waveguide.
摘要翻译：在包括由具有比空气更高的折射率的材料形成的板坯（11）的2D光子晶体结构的2D光子晶体波导中，其中具有比板坯材料低的折射率的材料（16）周期性排列为了提供折射率分布，通过在光子晶体的周期性阵列中形成用作波导的线缺陷（12）而产生光子晶体波导，并且至少一个点缺陷（14）被布置为邻近光子晶体波导在光子晶体的周期性阵列中作为无序。点缺陷用作用于在通过波导传播的光或电磁辐射中捕获所选波长的光或电磁辐射的光或电磁辐射出口/入口，并将其辐射，或从外部捕获选定波长的光或电磁辐射并将其引入波导。

78. 发明授权

US09219348B2 Edge-emitting semiconductor laser element 有权
标题翻译：边缘发射半导体激光元件
公开(公告)号：US09219348B2
公开(公告)日：2015-12-22
申请号：US14003549
申请日：2012-02-29
申请人： Akiyoshi Watanabe , Kazuyoshi Hirose , Kousuke Shibata , Takahiro Sugiyama , Yoshitaka Kurosaka , Susumu Noda
发明人： Akiyoshi Watanabe , Kazuyoshi Hirose , Kousuke Shibata , Takahiro Sugiyama , Yoshitaka Kurosaka , Susumu Noda
IPC分类号： H01S5/00 , H01S5/12 , H01S5/10 , H01S5/22
CPC分类号： H01S5/12 , H01S5/105 , H01S5/22 , H01S2301/18
摘要： The present edge-emitting semiconductor layer element includes two-dimensional photonic crystals 4 formed in a semiconductor layer, and when one direction of a contact region of an electrode 8 is provided as a length direction (X-direction) and a direction perpendicular to both of the length direction and a thickness direction of a substrate is provided as a width direction (Y-direction), the two-dimensional photonic crystals 4 are, when viewed from a direction (Z-axis) perpendicular to the substrate, located in a region containing the electrode contact region and wider in the width direction than the contact region, and have a refractive index periodic structure in which the refractive index satisfies a Bragg's diffraction condition while periodically changing at every interval along the one direction (X-axis).
摘要翻译：本发明的边缘发射半导体层元件包括形成在半导体层中的二维光子晶体4，并且当电极8的接触区域的一个方向被设置为长度方向（X方向）和垂直于两者的方向时沿着长度方向和基板的厚度方向设置为宽度方向（Y方向），当从垂直于基板的方向（Z轴）观察时，二维光子晶体4位于并且具有折射率周期性结构，其折射率满足布拉格衍射条件，同时沿着该一个方向（X轴）的每个间隔周期性地变化。

79. 发明申请

US20140247852A1 END-FACE-EMITTING PHOTONIC CRYSTAL LASER ELEMENT 有权
标题翻译：端面发光光电晶体激光元件
公开(公告)号：US20140247852A1
公开(公告)日：2014-09-04
申请号：US14347780
申请日：2012-08-31
申请人： Susumu Noda , Yoshitaka Kurosaka , Akiyoshi Watanabe , Kazuyoshi Hirose , Takahiro Sugiyama
发明人： Susumu Noda , Yoshitaka Kurosaka , Akiyoshi Watanabe , Kazuyoshi Hirose , Takahiro Sugiyama
IPC分类号： H01S5/042 , H01S5/343
CPC分类号： H01S5/0421 , H01S5/0425 , H01S5/0653 , H01S5/105 , H01S5/1203 , H01S5/34313 , H01S5/34353
摘要： When an end-face-emitting photonic crystal laser element 10 is seen in an X axis, one end of an upper electrode E2 overlaps a laser light exit surface SF, the upper electrode E2 and an opposite end face SB are separated from each other, the upper electrode E2 is separated from both lateral end faces SR, SL, and one end of an active layer 3B overlaps the laser light exit surface SF.
摘要翻译：当在X轴上看到端面发射光子晶体激光元件10时，上电极E2的一端与激光出射面SF重叠，上电极E2和相对端面SB相互分离，上电极E2与两个侧端面SR，SL分离，有源层3B的一端与激光出射面SF重叠。

80. 发明授权

US08619830B2 Photonic crystal surface emission laser 有权
标题翻译：光子晶体表面发射激光
公开(公告)号：US08619830B2
公开(公告)日：2013-12-31
申请号：US13571985
申请日：2012-08-10
申请人： Susumu Noda , Seita Iwahashi , Toshiyuki Nobuoka , Takui Sakaguchi , Eiji Miyai , Wataru Kunishi , Dai Ohnishi , Kazuya Nagase , Yoshikatsu Miura
发明人： Susumu Noda , Seita Iwahashi , Toshiyuki Nobuoka , Takui Sakaguchi , Eiji Miyai , Wataru Kunishi , Dai Ohnishi , Kazuya Nagase , Yoshikatsu Miura
IPC分类号： H01S5/183
CPC分类号： H01S5/105 , H01S5/0425 , H01S5/18
摘要： A photonic crystal surface emission laser includes an active layer, and a photonic crystal layer made of a plate-shaped slab provided with modified refractive index area having a refractive index different from that of the slab, the modified refractive index areas being arranged on each of the lattice points of a first rhombic-like lattice and a second rhombic-like lattice in which both diagonals are mutually parallel and only one diagonal is of a different length, wherein ax1, ax2, ay, and n satisfy the following inequality:  1 a x ⁢ ⁢ 1 - 1 a x ⁢ ⁢ 2  ( 1 a x ⁢ ⁢ 1 + 1 a x ⁢ ⁢ 2 ) 2 + ( 2 a y ) 2 ≤ 1 n .
摘要翻译：光子晶体表面发射激光器包括有源层和由具有折射率不同于板的折射率区域的具有改性折射率区域的板状板制成的光子晶体层，所述改性折射率区域被布置在两个对角线相互平行且只有一个对角线具有不同长度的第一菱形晶格和第二菱形晶格的晶格点，其中ax1，ax2，ay和n满足以下不等式：1 （1 ax⁢1 + 1斧2）2 +（2 ay）2 <= 1 n。

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