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1. 发明申请

US20080002931A1 Two-Dimensional Photonic Crystal and Optical Function Element Using the Same 有权
标题翻译：二维光子晶体和使用它的光学功能元件
公开(公告)号：US20080002931A1
公开(公告)日：2008-01-03
申请号：US11794121
申请日：2005-12-28
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Seiichi Takayama
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Seiichi Takayama
IPC分类号： G02B6/26
CPC分类号： G02F1/313 , B82Y20/00 , G02B6/1225 , G02F2202/32
摘要： An object of the present invention is to provide a two-dimensional photonic crystal which can be used for optical path changeover switches or the like to allow switching of a path. A first area 121 and a second area 122 provided with holes 131 and 132 having a different in the period and size are created on a body 11, and a main waveguide 15 is formed to obliquely cross a boundary 14 between these areas. A branch waveguide 17 branched from the main waveguide 15 into the first area 121 side is also formed by using a crossing point between the main waveguide 15 and the boundary 14 as a starting point. The second area 122 is heated to change a refractive index of the body within the area, so that a frequency band which can be passed through the main waveguide 15 of the second area 122 is changed. Light having a specific frequency and propagated through the main waveguide 15 from the first area 121 side is switched to be extracted from the main waveguide 15 on the second area 122 side or to be extracted from the branch waveguide 17 without propagating the main waveguide 15 on the second area 122, in response to whether or not the heating is performed.
摘要翻译：本发明的目的是提供一种二维光子晶体，其可以用于光路切换开关等，以允许路径的切换。在主体11上形成有具有周期和尺寸不同的孔131和132的第一区域121和第二区域122，并且主波导15形成为在这些区域之间倾斜地跨越边界14。从主波导15分支到第一区域121侧的分支波导管17也通过以主波导15和边界14之间的交叉点为起点形成。第二区域122被加热以改变该区域内的物体的折射率，使得能够通过第二区域122的主波导15的频带发生变化。具有特定频率并且从第一区域121侧通过主波导15传播的光被切换为从第二区域122侧的主波导15中提取或者从分支波导17提取而不将主波导15传播响应于是否执行加热，第二区域122。

2. 发明授权

US07428352B2 Two-dimensional photonic crystal and optical function element using the same 有权
标题翻译：二维光子晶体和光学功能元件使用相同
公开(公告)号：US07428352B2
公开(公告)日：2008-09-23
申请号：US11794121
申请日：2005-12-28
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Seiichi Takayama
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Seiichi Takayama
IPC分类号： G02B6/26 , G02B6/42 , G02B6/10
CPC分类号： G02F1/313 , B82Y20/00 , G02B6/1225 , G02F2202/32
摘要： An object of the present invention is to provide a two-dimensional photonic crystal which can be used for optical path changeover switches or the like to allow switching of a path. A first area 121 and a second area 122 provided with holes 131 and 132 having a difference in the period and size are created on a body 11, and a main waveguide 15 is formed to obliquely cross a boundary 14 between these areas. A branch waveguide 17 branched from the main waveguide 15 into the first area 121 side is also formed by using a crossing point between the main waveguide 15 and the boundary 14 as a starting point. The second area 122 is heated to change a refractive index of the body within the area, so that a frequency band which can be passed through the main waveguide 15 of the second area 122 is changed. Light having a specific frequency and propagated through the main waveguide 15 from the first area 121 side is switched to be extracted from the main waveguide 15 on the second area 122 side or to be extracted from the branch waveguide 17 without propagating the main waveguide 15 on the second area 122, in response to whether or not the heating is performed.
摘要翻译：本发明的目的是提供一种二维光子晶体，其可以用于光路切换开关等，以允许路径的切换。在主体11上形成有具有周期和尺寸差异的孔131和132的第一区域121和第二区域122，并且主波导15形成为跨越这些区域之间的边界14。从主波导15分支到第一区域121侧的分支波导管17也通过以主波导15和边界14之间的交叉点为起点形成。第二区域122被加热以改变该区域内的物体的折射率，使得能够通过第二区域122的主波导15的频带发生变化。具有特定频率并且从第一区域121侧通过主波导15传播的光被切换为从第二区域122侧的主波导15中提取或者从分支波导17提取而不将主波导15传播响应于是否执行加热，第二区域122。

3. 发明申请

US20070297722A1 Two-Dimensional Photonic Crystal Resonator 有权
标题翻译：二维光子晶体谐振器
公开(公告)号：US20070297722A1
公开(公告)日：2007-12-27
申请号：US10569729
申请日：2004-08-24
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Yoshihiro Akahane
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Yoshihiro Akahane
IPC分类号： G02B6/122 , G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225
摘要： The present invention intends to provide a two-dimensional photonic crystal resonator having a high Q-value. The slab-shaped body 21 is provided with cyclically arranged holes 22. The body 21 is divided into three areas 31-33 with the holes 22 arranged with cycle distances of a1 in area 31 and a2 in areas 32 and 33, which is smaller than a1. A waveguide 23 passing through the three areas is formed by linearly eliminating the holes 22. The waveguide 23 thus formed can propagate rays of light within a wavelength band that depends on the cycle distance of the holes 22. The cycle distance of the holes in the area 31 differs from that of the areas 32 and 33, and the wavelength band of the light propagating through the waveguide accordingly differs. Therefore, a ray of light whose wavelength is within the waveguide transmission wavelength band of the area 31 but outside of the waveguide transmission wavelength band of the other areas 32 and 33 will be confined within the waveguide of the area 31 and resonate therein. Thus, the waveguide in the area 31 functions as a resonator.
摘要翻译：本发明旨在提供具有高Q值的二维光子晶体谐振器。板状体21设置有循环布置的孔22.主体21被分成三个区域31-33，其中孔22布置成在区域31中具有“1”的循环距离，而_{2 在区域32和33中，小于1 <1> 。穿过三个区域的波导23通过线性消除孔22形成。如此形成的波导23可以在取决于孔22的循环距离的波长带内传播光线。孔中的循环距离区域31与区域32和33的区别不同，并且通过波导传播的光的波段相应地不同。因此，其波长在区域31的波导传输波长带内但其他区域32和33的波导传输波长带之外的光线将被限制在区域31的波导内并在其中谐振。因此，区域31中的波导用作谐振器。}

4. 发明申请

US20060269188A1 Electromagnetic wave frequency filter 失效
公开(公告)号：US20060269188A1
公开(公告)日：2006-11-30
申请号：US10569922
申请日：2004-08-26
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Hitomichi Takano
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Hitomichi Takano
IPC分类号： G02B6/26
CPC分类号： G02B6/12007 , B82Y20/00 , G02B6/1225 , G02B2006/12164 , H01P1/2005
摘要： In this electromagnetic wave frequency filter, an electromagnetic wave of a predetermined frequency matching a resonant frequency of a resonator 41 is transmitted from an input waveguide 2 to an output waveguide 3 through the resonator 41, and is outputted from a drop port P31. This filter has an input-waveguide-side reflector 211 and an output-waveguide-side reflector 311, which reflect the electromagnetic wave of the predetermined frequency. The electromagnetic wave frequency filter satisfies the following relation: Qinb/(1−cos θ1)

5. 发明授权

US07321707B2 Electromagnetic wave frequency filter 失效
公开(公告)号：US07321707B2
公开(公告)日：2008-01-22
申请号：US10569922
申请日：2004-08-26
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Hitomichi Takano
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Hitomichi Takano
IPC分类号： G02B6/26
CPC分类号： G02B6/12007 , B82Y20/00 , G02B6/1225 , G02B2006/12164 , H01P1/2005
摘要： In this electromagnetic wave frequency filter, an electromagnetic wave of a predetermined frequency matching a resonant frequency of a resonator 41 is transmitted from an input waveguide 2 to an output waveguide 3 through the resonator 41, and is outputted from a drop port P31. This filter has an input-waveguide-side reflector 211 and an output-waveguide-side reflector 311, which reflect the electromagnetic wave of the predetermined frequency. The electromagnetic wave frequency filter satisfies the following relation: Qinb/(1−cos θ1)

6. 发明授权

US07957620B2 Two-dimensional photonic crystal resonator 有权
标题翻译：二维光子晶体谐振器
公开(公告)号：US07957620B2
公开(公告)日：2011-06-07
申请号：US10569729
申请日：2004-08-24
申请人： Susumu Noda , Takashi Asano , Bong-Shik Song , Yoshihiro Akahane
发明人： Susumu Noda , Takashi Asano , Bong-Shik Song , Yoshihiro Akahane
IPC分类号： G02B6/122 , G02B6/26
CPC分类号： B82Y20/00 , G02B6/1225
摘要： The present invention intends to provide a two-dimensional photonic crystal resonator having a high Q-value. The slab-shaped body 21 is provided with cyclically arranged holes 22. The body 21 is divided into three areas 31-33 with the holes 22 arranged with cycle distances of a1 in area 31 and a2 in areas 32 and 33, which is smaller than a1. A waveguide 23 passing through the three areas is formed by linearly eliminating the holes 22. The waveguide 23 thus formed can propagate rays of light within a wavelength band that depends on the cycle distance of the holes 22. The cycle distance of the holes in the area 31 differs from that of the areas 32 and 33, and the wavelength band of the light propagating through the waveguide accordingly differs. Therefore, a ray of light whose wavelength is within the waveguide transmission wavelength band of the area 31 but outside of the waveguide transmission wavelength band of the other areas 32 and 33 will be confined within the waveguide of the area 31 and resonate therein. Thus, the waveguide in the area 31 functions as a resonator.
摘要翻译：本发明旨在提供具有高Q值的二维光子晶体谐振器。板状体21设置有循环布置的孔22.主体21被分为三个区域31-33，其中孔22布置成具有区域31中的周期距离a1和区域32和33中的a2，小于 a1。穿过三个区域的波导23通过线性消除孔22形成。如此形成的波导23可以在取决于孔22的循环距离的波长带内传播光线。孔中的循环距离区域31与区域32和33的区别不同，并且通过波导传播的光的波段相应地不同。因此，其波长在区域31的波导传输波长带内但其他区域32和33的波导透射波段之外的光线将被限制在区域31的波导内并在其中谐振。因此，区域31中的波导用作谐振器。

7. 发明授权

US07912335B2 Two-dimensional photonic crystal and optical device using the same 有权
标题翻译：二维光子晶体和光学器件使用相同
公开(公告)号：US07912335B2
公开(公告)日：2011-03-22
申请号：US11794192
申请日：2005-12-28
申请人： Susumu Noda , Takashi Asano , Seiichi Takayama
发明人： Susumu Noda , Takashi Asano , Seiichi Takayama
IPC分类号： G02B6/10
CPC分类号： B82Y20/00 , G02B6/12007 , G02B6/1225
摘要： An object of the present invention is to provide a two-dimensional photonic crystal in which conditions for both the TE-polarized light and the TM-polarized light can be easily satisfied. A body includes a first area having a triangular lattice pattern arrangement of a circular hole and a second area having a triangular lattice pattern arrangement of an equilateral triangular holes. Therefore, the TE-PBG which is a photonic band gap (PBG) for the TE-polarized light is created in the first area, and the TM-PBG which is a PBG for the TM-polarized light is created in the second area. Parameters such as the period and size of the holes can be independently set for the first area and the second area, so that an energy region common to the TE-PBG and the TM-PBG (i.e. absolute PBG) can be made larger and easily created. Forming a waveguide and resonators and or the like corresponding to an energy within the absolute PBG allows formation of a polarized light multiplexer/demultiplexer and a frequency (wavelength) multiplexer/demultiplexer without depending on polarized light or the like.
摘要翻译：本发明的目的是提供二维光子晶体，其中可以容易地满足TE偏振光和TM偏振光两者的条件。主体包括具有圆形孔的三角形格子图案布置的第一区域和具有等边三角形孔的三角形格子图案布置的第二区域。因此，在第一区域中产生作为TE偏振光的光子带隙（PBG）的TE-PBG，在第二区域中产生作为TM偏振光的PBG的TM-PBG。诸如孔的周期和尺寸的参数可以独立地设置为第一区域和第二区域，使得TE-PBG和TM-PBG（即绝对PBG）共有的能量区域可以变得更大和容易创建。对应于绝对PBG内的能量的波导和谐振器等形成偏振光多路复用器/解复用器和频率（波长）复用器/解复用器，而不依赖于偏振光等。

8. 发明授权

US07509013B2 Two-dimensional photonic crystal 有权
标题翻译：二维光子晶体
公开(公告)号：US07509013B2
公开(公告)日：2009-03-24
申请号：US11795991
申请日：2006-01-31
申请人： Susumu Noda , Takashi Asano , Seiichi Takayama , Ranko Hatsuda
发明人： Susumu Noda , Takashi Asano , Seiichi Takayama , Ranko Hatsuda
IPC分类号： G02B6/10
CPC分类号： B82Y20/00 , G02B6/1225
摘要： An objective of the present invention is to provide a two-dimensional photonic crystal in which a complete photonic band gap (PBG), i.e. a photonic band gap that is effective for both a TE-polarized light and a TM-polarized light within a predetermined wavelength range, is created and an adequate width of the complete PBG can be ensured. A slab-shaped body 21 consisting of a birefringent material is provided with holes 22 periodically arranged in a triangular lattice pattern, where a plane shape of the hole is an equilateral triangle. The PBG for the TE-polarized light and the PBG for the TM-polarized light can be independently set by adjusting anisotropy in the refractive index of the body 21, i.e. a refractive index in a direction vertical to the body 21 and a refractive index in a direction parallel to the body 21. This construction makes it possible to ensure an adequate width of the complete PBG.
摘要翻译：本发明的目的是提供一种二维光子晶体，其中完整的光子带隙（PBG），即对预定的TE偏振光和TM偏振光两者都有效的光子带隙波长范围，并且可以确保完整PBG的足够宽度。由双折射材料构成的板状体21设置有以三角形格子图案周期性排列的孔22，孔的平面形状为等边三角形。用于TE偏振光的PBG和用于TM偏振光的PBG可以通过调节主体21的折射率的各向异性，即垂直于主体21的方向上的折射率和折射率，独立地设定平行于主体21的方向。这种结构使得可以确保完整的PBG的宽度。

9. 发明申请

US20080124037A1 Two-Dimensional Photonic Crystal And Optical Device Using The Same 有权
标题翻译：二维光子晶体和使用它的光学器件
公开(公告)号：US20080124037A1
公开(公告)日：2008-05-29
申请号：US11794192
申请日：2005-12-28
申请人： Susumu Noda , Takashi Asano , Seiichi Takayama
发明人： Susumu Noda , Takashi Asano , Seiichi Takayama
IPC分类号： G02B6/10
CPC分类号： B82Y20/00 , G02B6/12007 , G02B6/1225
摘要： An object of the present invention is to provide a two-dimensional photonic crystal in which conditions for both the TE-polarized light and the TM-polarized light can be easily satisfied. A body includes a first area having a triangular lattice pattern arrangement of a circular hole and a second area having a triangular lattice pattern arrangement of an equilateral triangular holes. Therefore, the TE-PBG which is a photonic band gap (PBG) for the TE-polarized light is created in the first area, and the TM-PBG which is a PBG for the TM-polarized light is created in the second area. Parameters such as the period and size of the holes can be independently set for the first area and the second area, so that an energy region common to the TE-PBG and the TM-PBG (i.e. absolute PBG) can be made larger and easily created. Forming a waveguide and resonators and or the like corresponding to an energy within the absolute PBG allows formation of a polarized light multiplexer/demultiplexer and a frequency (wavelength) multiplexer/demultiplexer without depending on polarized light or the like.
摘要翻译：本发明的目的是提供二维光子晶体，其中可以容易地满足TE偏振光和TM偏振光两者的条件。主体包括具有圆形孔的三角形格子图案布置的第一区域和具有等边三角形孔的三角形格子图案布置的第二区域。因此，在第一区域中产生作为TE偏振光的光子带隙（PBG）的TE-PBG，在第二区域中产生作为TM偏振光的PBG的TM-PBG。诸如孔的周期和尺寸的参数可以独立地设置为第一区域和第二区域，使得TE-PBG和TM-PBG（即绝对PBG）共有的能量区域可以更大和容易地创建。对应于绝对PBG内的能量的波导和谐振器等形成偏振光多路复用器/解复用器和频率（波长）复用器/解复用器，而不依赖于偏振光等。

10. 发明授权

US07783139B2 Polarized light mode converter 有权
标题翻译：极化光模式转换器
公开(公告)号：US07783139B2
公开(公告)日：2010-08-24
申请号：US11886502
申请日：2006-03-07
申请人： Susumu Noda , Takashi Asano , Yoshinori Tanaka , Seiichi Takayama
发明人： Susumu Noda , Takashi Asano , Yoshinori Tanaka , Seiichi Takayama
IPC分类号： G02B6/00
CPC分类号： B82Y20/00 , G02B6/1225 , G02B6/126 , G02B6/14
摘要： The present invention provides a polarized light mode converter which can be provided within a two-dimensional photonic crystal or can be smoothly connected to a two-dimensional photonic crystal. In a two-dimensional photonic crystal made of a slab-like main body provided with a plurality of different refractive index regions (for example, holes 22) arranged in a lattice in the main body, where the different refractive index regions have a refractive index different from that of the main body, a polarized light conversion waveguide 23 is formed which is comprised of defects of the different refractive index regions arranged linearly whose a cross-sectional shape is asymmetrical in a vertical and in a horizontal direction. The polarized light conversion waveguide 23 can be, for example, realized by providing, on a side of the waveguide, holes 221 and 222 extending in a direction oblique to a the main body surface. TE polarized light propagating through the polarized light conversion waveguide 23 is partially converted into TM polarized light due to the asymmetry of the cross-sectional shape of the waveguide. Since the polarized light mode converter is made of a two-dimensional photonic crystal, it can be provided within a two-dimensional photonic crystal or can be smoothly connected to a two-dimensional photonic crystal.
摘要翻译：本发明提供一种可以设置在二维光子晶体内或者可以平滑地连接到二维光子晶体的偏振光模式转换器。在由板状主体构成的二维光子晶体中，其具有在主体中以格子排列的多个不同的折射率区域（例如，孔22），其中不同的折射率区域具有折射率与主体不同的是，形成偏振光转换波导23，该偏振光转换波导23由横截面形状在垂直方向和水平方向上不对称的直线布置的不同折射率区域的缺陷构成。例如，偏振光转换波导23可以通过在波导侧设置沿着与主体表面倾斜的方向延伸的孔221和222来实现。由于波导的横截面形状的不对称性，通过偏振光转换波导23传播的TE偏振光被部分地转换为TM偏振光。由于偏振光模式转换器由二维光子晶体制成，所以它可以设置在二维光子晶体内，或者可以平滑地连接到二维光子晶体。

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