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41.发明申请Transmissive diffraction grating, and spectral separation element and spectroscope using the same 失效透射衍射光栅，以及光谱分离元件和使用其的光谱仪公开(公告)号：US20080074748A1
公开(公告)日：2008-03-27
申请号：US11901940
申请日：2007-09-19
IPC分类号： G02B5/18
CPC分类号： G02B5/1871 , G01J3/02 , G01J3/0205 , G01J3/18
摘要： A transmissive diffraction grating includes a substrate and a plurality of ridges provided in a mutually parallel manner at constant periodicity p on the substrate. The ridges include a first layer, a second layer (refractive index n2: 2.0-2.5), and a third layer with non-continuous refractive indices, arranged in that order from the substrate outward. The first layer adjacent the substrate, in terms of its refractive index, exhibits a difference of 0.1 or less relative to the substrate. The second layer has a higher refractive index than the first layer and third layer and satisfies the following conditions. For a single ridge, the cross-sectional area S of a cross-section of the second layer perpendicular to the longitudinal direction of said ridge is in the range of 0.75p2k1θ2/(n2−1)
摘要翻译： 透射衍射光栅包括基板和以基板上的恒定周期性p彼此平行的方式设置的多个脊。 脊包括第一层，第二层（折射率n <2> 2.0-2.5）以及具有非连续折射率的第三层，从衬底向外按顺序排列。 与基板相邻的第一层的折射率相对于基板的差为0.1以下。 第二层具有比第一层和第三层更高的折射率，并且满足以下条件。 对于单个脊，垂直于所述脊的纵向方向的第二层的横截面的横截面积S在0.75p 2的范围内< （n 2-2）
2 θ2是衍射光栅面上的入射角，用弧度单位表示，常数k <1 SUB>为1.1。 第二层的厚度d 2 N在0.70pk 2的范围内，在第二层的厚度d 2 -1）<1.30PK 2 /（n2-2-1），其中， 常数k <2>为0.69。 -
公开(公告)号：US07305155B2
公开(公告)日：2007-12-04
申请号：US11089434
申请日：2005-03-24
IPC分类号： G02B6/12
CPC分类号： G02B6/2931 , B82Y20/00 , G02B6/1225 , G02B6/29328 , G02B6/2938
摘要： A wavelength separator includes a one-dimensional photonic crystal structure formed by providing a plurality of grooves in parallel with one another at uniform intervals in a homogeneous medium, and has an incident end face formed obliquely with respect to a direction in which the grooves extend, and an output end face formed approximately perpendicular to the incident end face.
摘要翻译： 波长分离器包括通过在均匀介质中以均匀的间隔彼此平行地设置多个凹槽而形成的一维光子晶体结构，并且具有相对于凹槽延伸的方向倾斜地形成的入射端面， 以及大致垂直于入射端面形成的输出端面。
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公开(公告)号：US20070058915A1
公开(公告)日：2007-03-15
申请号：US10547828
申请日：2004-03-04
申请人： Shigeo Kittaka , Kazuaki Oya , Keiji Tsunetomo
发明人： Shigeo Kittaka , Kazuaki Oya , Keiji Tsunetomo
IPC分类号： G02B6/10
CPC分类号： G02B6/1225 , B82Y20/00
摘要： In a waveguide element using a photonic crystal including a core formed of a photonic crystal having a refractive index periodicity in at least two directions perpendicular to a propagation direction of an electromagnetic wave and a cladding arranged in contact with the core in order to confine the electromagnetic wave in the core, an incident side phase modulation portion is provided for allowing an electromagnetic wave that is coupled to a band on or near a Brillouin zone boundary in a photonic band structure in the core and propagates in the core to enter the core.
摘要翻译： 在使用光子晶体的波导元件中，所述光子晶体包括由垂直于电磁波的传播方向的至少两个方向的折射率周期性的光子晶体形成的核和与芯接触的包层，以限制电磁 提供入射侧相位调制部分，用于允许耦合到核心中的光子带结构中的布里渊区边界上或附近的带的电磁波，并且在核心中传播以进入核心。
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公开(公告)号：US07170600B2
公开(公告)日：2007-01-30
申请号：US10528521
申请日：2003-09-22
CPC分类号： G01J3/1804 , G01J3/0208 , G01J3/0218 , G01J3/18 , G01J3/24 , G02B5/1866 , G02B6/29311
摘要： A spectrometer using a diffraction grating includes a light-incident portion including an incident-side optical waveguide emitting a light beam that includes a plurality of wavelength components and that approximates a Gaussian beam, and a collimating lens that is arranged on an emission side of the incident-side optical waveguide and that converts the light beam approximating a Gaussian beam that is emitted from the incident-side optical waveguide into a substantially collimated light beam; a diffraction grating having grooves on its surface, on which the light beam that has been converted into the substantially collimated light beam by the collimating lens is incident, the diffraction grating spectrally separating the light beam by emitting light beams whose emission direction depends on their wavelength; and a light-emitting portion having a plurality of focusing lenses that respectively condense the light beams that have been spectrally separated by the diffraction grating.
摘要翻译： 使用衍射光栅的光谱仪包括光入射部分，其包括发射包括多个波长分量并且近似高斯光束的光束的入射侧光波导，以及配置在该发射侧的发射侧的准直透镜 并且将从入射侧光波导发射的高斯光束近似的光束转换成基本上准直的光束; 衍射光栅在其表面上具有凹槽，其上已经被准直透镜转换成基本上准直的光束的光束入射，衍射光栅通过发射发射方向取决于其波长的光束而光谱地分离光束 ; 以及具有多个聚焦透镜的发光部分，其分别冷凝由衍射光栅分光的光束。
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45.发明授权Optical element using one-dimensional photonic crystal and spectroscopic device using the same 失效使用一维光子晶体的光学元件和使用其的分光装置公开(公告)号：US07068903B2
公开(公告)日：2006-06-27
申请号：US10438827
申请日：2003-05-16
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 , G02B6/12007
摘要： An optical element, composed of an one-dimensional photonic crystal of a triangular prism shape and a multilayer film and a phase modulation unit are used together, with the phase modulation unit adjacent or abutting to a light input end surface of the optical element. Input light is phase-modulated by the phase modulation unit in the same period and direction as those of photonic crystal so that only specific high-order band light can be propagated through the optical element. When this optical element is formed in an optical waveguide, a small-size spectroscopic device having high resolving power can be provided.
摘要翻译： 将由三角形棱镜形状的一维光子晶体和多层膜构成的光学元件和相位调制单元一起使用，相位调制单元与光学元件的光输入端面相邻或邻接。 输入光在与光子晶体相同的周期和方向上由相位调制单元进行相位调制，使得只有特定的高阶波段光能够通过光学元件传播。 当该光学元件形成在光波导中时，可以提供具有高分辨能力的小尺寸分光装置。
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公开(公告)号：US20060023212A1
公开(公告)日：2006-02-02
申请号：US10528521
申请日：2003-09-22
IPC分类号： G01J3/28
CPC分类号： G01J3/1804 , G01J3/0208 , G01J3/0218 , G01J3/18 , G01J3/24 , G02B5/1866 , G02B6/29311
摘要： A spectrometer using a diffraction grating includes a light-incident portion including an incident-side optical waveguide emitting a light beam that includes a plurality of wavelength components and that approximates a Gaussian beam, and a collimating lens that is arranged on an emission side of the incident-side optical waveguide and that converts the light beam approximating a Gaussian beam that is emitted from the incident-side optical waveguide into a substantially collimated light beam; a diffraction grating having grooves on its surface, on which the light beam that has been converted into the substantially collimated light beam by the collimating lens is incident, the diffraction grating spectrally separating the light beam by emitting light beams whose emission direction depends on their wavelength; and a light-emitting portion having a plurality of focusing lenses that respectively condense the light beams that have been spectrally separated by the diffraction grating.
摘要翻译： 使用衍射光栅的光谱仪包括光入射部分，其包括发射包括多个波长分量并且近似高斯光束的光束的入射侧光波导，以及布置在所述发射侧的准直透镜 并且将从入射侧光波导发射的高斯光束近似的光束转换成基本上准直的光束; 衍射光栅在其表面上具有凹槽，其上已经被准直透镜转换成基本上准直的光束的光束入射，衍射光栅通过发射发射方向取决于其波长的光束而光谱地分离光束 ; 以及具有多个聚焦透镜的发光部分，其分别冷凝由衍射光栅分光的光束。
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公开(公告)号：US06919953B2
公开(公告)日：2005-07-19
申请号：US10067858
申请日：2002-02-08
申请人： Shigeo Kittaka , Minoru Taniyama
发明人： Shigeo Kittaka , Minoru Taniyama
CPC分类号： G01M11/0228 , G02B3/0087
摘要： A method of measuring a radial index distribution of a rod lens has the steps: (1) the rod lens is processed so that the length is approximately P/2 (where P is pitch length) or an integer multiple thereof and so end surfaces parallel, (2) a patterned surface is set as an object surface in the proximity of one end surface, and an image surface is formed in the proximity of the other end surface by irradiating the patterned surface with condensed monochromatic light, (3) the positions of paraxial focal points and the curves of curvature of field are obtained by observing the image surface, and (4) higher-order index distribution coefficients are calculated back by a fitting process on the basis of the positions of paraxial focal points and the curves of curvature of field.
摘要翻译： 测量棒状透镜的径向折射率分布的方法具有以下步骤：（1）棒状透镜被加工成长度近似为P / 2（其中P为节距长度）或其整数倍，因此端面平行 ，（2）将图案化表面设置为在一个端面附近的物体表面，并且通过用聚光单色光照射图案化表面，在另一端面附近形成图像表面，（3）位置 通过观察图像表面获得近轴焦点和曲率曲线，（4）通过拟合过程根据近轴焦点位置和曲线的曲线计算高阶折射率分布系数 曲率场。
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公开(公告)号：US06914715B2
公开(公告)日：2005-07-05
申请号：US10375099
申请日：2003-02-28
CPC分类号： B82Y20/00 , G02B6/1225
摘要： An optical element according to the invention uses a thin film-like two-dimensional photonic crystal having a structure of periodic repetition in two directions perpendicular to each other. When the two periodic directions are Y-axis and Z-axis directions, opposite surfaces of the photonic crystal structure perpendicular to the Z-axis direction and parallel to the Y-axis direction are used as a light input surface and a light output surface respectively. The direction of movement of light rays incident onto the light input surface is decided so that it is parallel to the YZ plane and inclined at a predetermined inclination angle to the Z-axis direction.
摘要翻译： 根据本发明的光学元件使用在彼此垂直的两个方向上具有周期性重复的结构的薄膜状二维光子晶体。 当两个周期方向是Y轴和Z轴方向时，垂直于Z轴方向并平行于Y轴方向的光子晶体结构的相对表面分别用作光输入表面和光输出表面 。 决定入射到光输入面上的光线的移动方向，使其平行于YZ平面并以与Z轴方向成预定倾斜角倾斜。
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49.发明授权公开(公告)号：US06847770B2
公开(公告)日：2005-01-25
申请号：US10024512
申请日：2001-12-21
申请人： Shigeo Kittaka , Tadashi Koyama , Masami Kitano
发明人： Shigeo Kittaka , Tadashi Koyama , Masami Kitano
CPC分类号： G02B6/0288 , C03C21/002 , C03C25/601 , C03C25/602 , G02B6/32 , G02B6/4203 , G02B6/4206
摘要： A lens function-including optical lens according to the present invention is constituted by: at least one step-index optical fiber; and at least one gradient index optical fiber having an outer diameter equal to that of the step-index optical fiber and having a periodic length exhibiting a lens function, the gradient index optical fiber being joined or attached to an end surface of the step-index optical fiber. The present invention is especially effective in a single mode optical fiber which is typical of the step-index optical fiber. The gradient index optical fiber can be produced by an ion exchange method.
摘要翻译： 根据本发明的包括镜头功能的光学透镜由以下部分构成：至少一个阶跃折射率光纤; 以及至少一个具有等于阶跃折射率光纤的外径的梯度折射率光纤，并且具有展现透镜功能的周期长度，该梯度折射率光纤被连接或附着到阶跃折射率的端面 光纤。 本发明在典型的阶跃折射率光纤的单模光纤中特别有效。 梯度折射率光纤可以通过离子交换法制造。
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公开(公告)号：US06825963B2
公开(公告)日：2004-11-30
申请号：US10347266
申请日：2003-01-21
申请人： Shigeo Kittaka , Kazuaki Oya , Masatoshi Nara
发明人： Shigeo Kittaka , Kazuaki Oya , Masatoshi Nara
IPC分类号： G02F100
CPC分类号： B82Y20/00 , G02B6/1225
摘要： In the invention, light incident onto an end surface of one-dimensional photonic crystal is phase-modulated in the same period and direction as those of the photonic crystal to thereby propagate only specific high-order band light in the photonic crystal. That is, a phase modulation unit for generating phase-modulated wave having the same period as that of the periodic structure is disposed adjacent or close to a light incident surface of the periodic structure.
摘要翻译： 在本发明中，入射到一维光子晶体的端面上的光在与光子晶体相同的周期和方向上进行相位调制，从而仅传播光子晶体中的特定高阶带状光。 也就是说，用于产生与周期性结构具有相同周期的相位调制波的相位调制单元邻近或靠近周期性结构的光入射表面。
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