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    Photonic crystal waveguide, homogeneous medium waveguide, and optical device
    1.
    发明授权
    Photonic crystal waveguide, homogeneous medium waveguide, and optical device 失效
    光子晶体波导，均匀介质波导和光学器件

    公开(公告)号：US07310468B2

    公开(公告)日：2007-12-18

    申请号：US10565012

    申请日：2004-07-16

    申请人： Shigeo Kittaka ,  Kazuaki Oya ,  Keiji Tsunetomo

    发明人： Shigeo Kittaka ,  Kazuaki Oya ,  Keiji Tsunetomo

    IPC分类号： G02B6/10 ,  G02B6/12 ,  G02B6/26

    CPC分类号： G02F1/3136 ,  B82Y20/00 ,  G02B6/1225 ,  G02F2202/32

    摘要： A photonic crystal waveguide and a homogeneous medium waveguide for enabling a steep bend and arrangement at an arbitrary angle with low propagation loss. A photonic crystal waveguide has a core formed by a photonic crystal having periodicity in the Y-direction. Electromagnetic wave is propagated by a band on the Brillouin zone boundary of the photonic band structure of the core. A side face of the core parallel to the Y-direction is in contact with a homogeneous medium having a refractive index of ns, and the condition of λ0/ns>aλ/(λ2/4+a2)0.5 is satisfied when the wavelength in vacuum of the electromagnetic wave is represented by λ0, the period of the photonic crystal is represented by a, and the period in the XZ-plane direction of the wave propagated through the core is represented by λ.

    摘要翻译： 一种光子晶体波导和均匀介质波导，用于以低传播损耗以任意角度进行陡峭的弯曲和布置。 光子晶体波导具有由在Y方向上具有周期性的光子晶体形成的核心。 电磁波由核心的光子带结构的布里渊区边界上的带传播。 平行于Y方向的芯的侧面与折射率为n 的折射率的均匀介质接触，并且λ<0 / 当真空中的波长为λ时，满足λλ/（λ2/4 + a 2） 电磁波由λ表示，光子晶体的周期由a表示，并且通过核传播的波的XZ平面方向上的周期由λ表示。

    Optical path conversion element
    2.
    发明申请
    Optical path conversion element 审中-公开
    光路转换元件

    公开(公告)号：US20070025657A1

    公开(公告)日：2007-02-01

    申请号：US10558995

    申请日：2004-06-04

    申请人： Kazuaki Oya ,  Shigeo Kittaka ,  Keiji Tsunetomo

    发明人： Kazuaki Oya ,  Shigeo Kittaka ,  Keiji Tsunetomo

    IPC分类号： G02F1/295

    CPC分类号： B82Y20/00 ,  G02B6/1225 ,  G02F1/31 ,  G02F2202/32

    摘要： An optical path conversion element includes a photonic crystal exhibiting periodicity of refractive index in one direction and using as an incident end face one of end faces substantially parallel with the periodicity direction of refractive index and an exit end face opposite the incident end face, an incident part for passing an incident light through the incident end face such that a propagation light is generated in the photonic crystal by a band on a Brillouin zone boundary, and a device for changing a photonic band structure of the photonic crystal and/or a device for changing a propagation optical path length that is a distance from the incident end face to the exit end face.

    摘要翻译： 光路转换元件包括在一个方向上具有折射率周期的光子晶体，并且使用与入射端面相反的与折射率周期方向大致平行的端面中的一个端面和与入射端面相反的出射端面， 用于使入射光通过入射端面的部分，使得通过布里渊区边界上的带在光子晶体中产生传播光，以及用于改变光子晶体的光子带结构的装置和/或用于 改变从入射端面到出射端面的距离的传播光路长度。

    Photonic crystal optical waveguide
    3.
    发明申请
    Photonic crystal optical waveguide 审中-公开
    光子晶体光波导

    公开(公告)号：US20060140567A1

    公开(公告)日：2006-06-29

    申请号：US10519817

    申请日：2003-07-08

    申请人： Shigeo Kittaka ,  Kazuaki Oya ,  Masatoshi Nara ,  Keiji Tsunetomo ,  Takahiro Asai

    发明人： Shigeo Kittaka ,  Kazuaki Oya ,  Masatoshi Nara ,  Keiji Tsunetomo ,  Takahiro Asai

    IPC分类号： G02B6/10

    CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02B6/02257 ,  G02B6/02261 ,  G02B6/02285 ,  G02B6/023 ,  G02B6/02357 ,  G02B6/02385

    摘要： A photonic crystal optical waveguide includes a optical waveguide portion having a core made of a photonic crystal with a structure having a periodic refractive index in at least one direction perpendicular to a propagation direction of guided light and having a uniform refractive index in the propagation direction of the guided light, and a cladding arranged in contact with the core, in order to confine the guided light in the core, and an incident-side phase modulation portion arranged in close proximity or in contact with an incident surface of the core.

    摘要翻译： 光子晶体光波导包括光波导部分，该光波导部分具有由光子晶体构成的核心，所述光子晶体具有在垂直于导光的传播方向的至少一个方向上具有周期性折射率的结构，并且在传播方向上具有均匀的折射率 引导光和与芯接触的包层，以便将引导光限制在芯中，以及布置在芯的入射表面附近或接触的入射侧相位调制部分。

    Waveguide element, method for producing the waveguide element, and optical sensor
    4.
    发明授权
    Waveguide element, method for producing the waveguide element, and optical sensor 失效
    波导元件，波导元件的制造方法以及光学传感器

    公开(公告)号：US07724997B2

    公开(公告)日：2010-05-25

    申请号：US11792904

    申请日：2006-01-12

    申请人： Shigeo Kittaka ,  Masatoshi Nara ,  Keiji Tsunetomo

    发明人： Shigeo Kittaka ,  Masatoshi Nara ,  Keiji Tsunetomo

    IPC分类号： G02B6/34 ,  G02B6/02

    CPC分类号： G02B6/1225 ,  B82Y20/00

    摘要： A waveguide element 21 including a photonic crystal waveguide including a core 4 that is constituted by a photonic crystal having a refractive index periodicity at least in one direction, and that propagates an electromagnetic wave in a direction in which the photonic crystal does not have the refractive index periodicity. At least one of materials forming the core 4 constituted by the photonic crystal, and at least a portion of a cladding in contact with a side face of the core 4 are constituted by a fluid 6. Thus, it is possible to provide a waveguide element that can be used as a light control element, can be produced easily and also can be applied to an optical sensor.

    摘要翻译： 包括光子晶体波导的波导元件21，该光子晶体波导包括由至少在一个方向上具有折射率周期的光子晶体构成的核心4，并且在光子晶体不具有折射率的方向上传播电磁波 指数周期。 形成由光子晶体构成的芯体4的至少一种材料和与芯体4的侧面接触的包层的至少一部分由流体6构成。因此，可以提供波导元件 可以用作光控制元件，可以容易地制造，并且也可以应用于光学传感器。

    Waveguide Element, Method for Producing the Waveguide Element, and Optical Sensor
    8.
    发明申请
    Waveguide Element, Method for Producing the Waveguide Element, and Optical Sensor 失效
    波导元件，波导元件生产方法和光学传感器

    公开(公告)号：US20080304787A1

    公开(公告)日：2008-12-11

    申请号：US11792904

    申请日：2006-01-12

    申请人： Shigeo Kittaka ,  Masatoshi Nara ,  Keiji Tsunetomo

    发明人： Shigeo Kittaka ,  Masatoshi Nara ,  Keiji Tsunetomo

    IPC分类号： G02B6/028 ,  G02B6/02

    CPC分类号： G02B6/1225 ,  B82Y20/00

    摘要： A waveguide element 21 including a photonic crystal waveguide including a core 4 that is constituted by a photonic crystal having a refractive index periodicity at least in one direction, and that propagates an electromagnetic wave in a direction in which the photonic crystal does not have the refractive index periodicity. At least one of materials forming the core 4 constituted by the photonic crystal, and at least a portion of a cladding in contact with a side face of the core 4 are constituted by a fluid 6. Thus, it is possible to provide a waveguide element that can be used as a light control element, can be produced easily and also can be applied to an optical sensor.

    摘要翻译： 包括光子晶体波导的波导元件21，该光子晶体波导包括由至少在一个方向上具有折射率周期的光子晶体构成的核心4，并且在光子晶体不具有折射率的方向上传播电磁波 指数周期。 形成由光子晶体构成的芯体4的至少一种材料和与芯体4的侧面接触的包层的至少一部分由流体6构成。因此，可以提供波导元件 可以用作光控制元件，可以容易地制造，并且也可以应用于光学传感器。

    Optical waveguide device
    9.
    发明申请
    Optical waveguide device 失效
    光波导器件

    公开(公告)号：US20080107388A1

    公开(公告)日：2008-05-08

    申请号：US12001410

    申请日：2007-12-11

    申请人： Shigeo Kittaka ,  Keiji Tsunetomo

    发明人： Shigeo Kittaka ,  Keiji Tsunetomo

    IPC分类号： G02B6/10

    CPC分类号： G02B6/1225 ,  B82Y20/00 ,  G02B6/12007

    摘要： An optical waveguide device 1a is configured to include a straight waveguide 2a and bottleneck portions 3a provided in two locations in the longitudinal direction of the waveguide 2a. In the optical waveguide device 1a, light confinement is implemented in all surfaces. This permits provision of an optical waveguide device, wherein a reflector or resonator can be provided in a waveguide using a simple configuration.

    摘要翻译： 光波导器件1a被配置为包括设置在波导2a的纵向方向上的两个位置的直线波导2a和瓶颈部分3a。 在光波导器件1a中，在所有表面上实现光限制。 这允许提供光波导器件，其中可以使用简单的构造在波导中提供反射器或谐振器。

    Photonic crystal waveguide, homogeneous medium waveguide, and optical device
    10.
    发明申请
    Photonic crystal waveguide, homogeneous medium waveguide, and optical device 失效
    光子晶体波导，均匀介质波导和光学器件

    公开(公告)号：US20060251368A1

    公开(公告)日：2006-11-09

    申请号：US10565012

    申请日：2004-07-16

    申请人： Shigeo Kittaka ,  Kazuaki Oya ,  Keiji Tsunetomo

    发明人： Shigeo Kittaka ,  Kazuaki Oya ,  Keiji Tsunetomo

    IPC分类号： G02B6/032 ,  G02B6/26

    CPC分类号： G02F1/3136 ,  B82Y20/00 ,  G02B6/1225 ,  G02F2202/32

    摘要： A photonic crystal waveguide and a homogeneous medium waveguide for enabling a steep bend and arrangement at an arbitrary angle with low propagation loss. A photonic crystal waveguide has a core formed by a photonic crystal having periodicity in the Y-direction. Electromagnetic wave is propagated by a band on the Brillouin zone boundary of the photonic band structure of the core. A side face of the core parallel to the Y-direction is in contact with a homogeneous medium having a refractive index of ns, and the condition of λ0/ns>aλ/(λ2/4+a2)0.5 is satisfied when the wavelength in vacuum of the electromagnetic wave is represented by λ0, the period of the photonic crystal is represented by a, and the period in the XZ-plane direction of the wave propagated through the core is represented by λ.

    摘要翻译： 一种光子晶体波导和均匀介质波导，用于以低传播损耗以任意角度进行陡峭的弯曲和布置。 光子晶体波导具有由在Y方向上具有周期性的光子晶体形成的核心。 电磁波由核心的光子带结构的布里渊区边界上的带传播。 平行于Y方向的芯的侧面与折射率为n 的折射率的均匀介质接触，并且λ<0 / 当真空中的波长为λ时，满足λλ/（λ2/4 + a 2） 电磁波由λ表示，光子晶体的周期由a表示，并且通过核传播的波的XZ平面方向上的周期由λ表示。