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1.发明授权
公开(公告)号：US4641913A
公开(公告)日：1987-02-10
申请号：US692872
申请日：1985-01-18
申请人： Yoshikazu Nishiwaki , Yozo Nishiura
发明人： Yoshikazu Nishiwaki , Yozo Nishiura
摘要： The present invention provides optical integrated circuits in which both a light function zone and a light reception zone are monolithically formed on the same substrate to obtain high reliability and low noise and loss. The optical integrated circuits according to the present invention have improved electrode structure formed on a light wave guide layer to apply a major portion of the electric field generated by the current flowing in the electrode structure within the light wave guide layer to thus improve light receiving sensitivity. Further, the optical integrated circuits according to the present invention have the light reception zone of the large photoconductive effect on the substrate to develop a light receiving sensitivity to the light function zone without affecting propagation loss.
摘要翻译： 本发明提供了光集成电路，其中光功能区和光接收区两者单片地形成在同一基板上，以获得高可靠性和低噪声和损耗。 根据本发明的光集成电路具有改善的电波结构，形成在光波导层上，以施加由在光波导层内的电极结构中流动的电流产生的电场的大部分，从而提高光接收灵敏度 。 此外，根据本发明的光集成电路具有在基板上具有大的光电导效应的光接收区，以对光功能区产生光接收灵敏度，而不会影响传播损耗。
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公开(公告)号：US4569588A
公开(公告)日：1986-02-11
申请号：US486515
申请日：1983-04-19
申请人： Yoshikazu Nishiwaki , Yozo Nishiura
发明人： Yoshikazu Nishiwaki , Yozo Nishiura
摘要： A method and apparatus for detecting a frequency change of a light modulates the scattered light from the object of measurement using an acousto-optic modulator or the like, heterodyne-detects the scattered light after modulation to provide an electrical signal having a frequency (f.sub.d -f.sub.m) which is the difference between the Doppler frequency f.sub.d and the modulation frequency f.sub.m, passes this electrical signal to a filter while changing the modulation frequency f.sub.m, and obtains the modulation frequency f.sub.m at which the signal voltage is the largest or the smallest, that is, the Doppler frequency f.sub.d.
摘要翻译： 用于检测光的频率变化的方法和装置使用声光调制器等对来自测量对象的散射光进行调制，外差检测调制后的散射光，以提供具有频率（fd- fm）是多普勒频率fd和调制频率fm之间的差，在改变调制频率fm的同时将该电信号传递给滤波器，并获得信号电压最大或最小的调制频率fm，即， 是多普勒频率fd。
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公开(公告)号：US4547072A
公开(公告)日：1985-10-15
申请号：US502063
申请日：1983-06-07
CPC分类号： G01C19/721
摘要： An optical fiber gyro system provides a pair of separated optical paths containing partial common portions. A phase difference .DELTA..theta. is detected using a plurality of detectors which yield sin and cos functions in .DELTA..theta.. Functions are formed as linear couplings of these functions, and the phase difference .DELTA..theta. is obtained using the function of best sensitivity for the given range of .DELTA..theta..
摘要翻译： 光纤陀螺仪系统提供包含部分公共部分的一对分离光路。 使用在DELTAθ中产生sin和cos函数的多个检测器来检测相位差DELTAθ。 功能形成为这些功能的线性耦合，并且使用对于给定范围的DELTAθ的最佳灵敏度的函数获得相位差DELTAθ。
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公开(公告)号：US4673241A
公开(公告)日：1987-06-16
申请号：US786028
申请日：1985-10-10
CPC分类号： G03F7/70408 , G02B5/32 , G02B6/124 , G03F7/001 , G03F7/2006 , G03H1/04
摘要： An optical branching filter element comprised of a substrate having a wave guide thereon of a material capable of reversibly changing its refractive index and an erasable diffraction grating formed on the waveguide. The diffraction grating may be formed by a holographic exposure method or a light beam scanning method and may be erased by suitable erasing means.
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公开(公告)号：US4517280A
公开(公告)日：1985-05-14
申请号：US548591
申请日：1983-11-03
CPC分类号： G02B6/124
摘要： A process for making a diffraction grating pattern on a substrate is disclosed. The process comprises the steps of coating the substrate with first and second materials, with one of the materials defining a selected area for the diffraction grating pattern, and the other material covering the substrate while forming a window at that portion of the substrate where the diffraction grating is desired. The window portion of the substrate is then etched, and the first and second materials are stripped off in order to leave behind the diffraction grating pattern at the desired location of the substrate.
摘要翻译： 公开了一种在衬底上制作衍射光栅图案的工艺。 该方法包括以下步骤：用第一和第二材料涂覆基材，其中一种材料限定用于衍射光栅图案的选定区域，并且另一种材料覆盖基板，同时在基板的该部分处形成窗口，其中衍射 需要光栅。 然后蚀刻衬底的窗口部分，并且剥离第一和第二材料以便在基底的期望位置留下衍射光栅图案。
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公开(公告)号：US4729618A
公开(公告)日：1988-03-08
申请号：US576483
申请日：1984-02-02
CPC分类号： G02B6/30 , G02B6/12004 , G02B6/42 , G02F1/3132 , G02F1/3133
摘要： An integrated optic circuit according to the present invention is produced as a hybrid integrated optic circuit using two or more kinds of substrates in which only the portion of high performance and high degree of integration is formed of the substrate of a material of high cost and high performance while the other portion of lower degree of integration is formed of the substrate of a material of low cost. Therefore, in the integrated optic circuit according to the present invention, the distance between the waveguides to be coupled with optical fibers can be larger than the outside diameter of the optical fiber, and the integrated optic circuit according to the present invention can be produced easily at low cost.
摘要翻译： 根据本发明的集成光电路是使用两种或更多种基板制造的混合集成光电路，其中仅由高成本和高成本的材料的基板形成高性能和高集成度的部分 而低集成度的另一部分由低成本材料的基板形成。 因此，在根据本发明的集成光电路中，要与光纤耦合的波导之间的距离可以大于光纤的外径，并且可以容易地制造根据本发明的集成光电路 以低成本。
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7.发明授权Method of forming diffraction gratings and optical branching filter elements produced thereby 失效形成衍射光栅的方法和由此产生的光学分支滤光元件
公开(公告)号：US4560249A
公开(公告)日：1985-12-24
申请号：US486171
申请日：1983-04-18
CPC分类号： G03F7/70408 , G02B5/32 , G02B6/124 , G03F7/001 , G03F7/2006 , G03H1/04
摘要： A method for making a diffraction grating utilizing a laser source, a beam splitter to split the light from the laser source into two light fluxes, a collimator to convert each light flux into a light flux which is parallel and enlarged in diameter, a mirror to irradiate each light flux on a substrate coated with a photoresist, and a photomask on the photoresist. The use of an intermediate mask and focusing leans enables the formation of a diffraction grating within a limited area. A blazed diffraction grating may be formed by splitting a laser beam into two beams having an increased beam radius, and irradiating a light-sensitive material with the resulting two beams to form an interference fringe. This method is characterized in that in a first exposure the two beams are incident on the light sensitive material through air to form an interference fringe having a clearance width of d, and in a second exposure, the two beams are irradiated on the light sensitive material through a symmetrical transparent member having an isosceles triangular cross section in such a manner that the origin coincides to form an interference fringe having a clearance width of d/2, and furthermore, in that the ratio of the first exposure energy to the second exposure energy is made equal to the ratio of the first term to the second term of a Fourier series obtained by expanding the periodical function of the waveform of the blazed diffraction grating.
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公开(公告)号：US4685763A
公开(公告)日：1987-08-11
申请号：US902090
申请日：1986-08-27
申请人： Kunio Tada , Yoshikazu Nishiwaki , Shunji Matsuoka
发明人： Kunio Tada , Yoshikazu Nishiwaki , Shunji Matsuoka
CPC分类号： G02F1/025 , G02F1/3133 , G02F2001/0151 , G02F2201/063 , G02F2202/101
摘要： A light modulation device according to the present invention comprises a substrate, a substrate layer, an optical waveguide layer, and buffer layers, in the order from the bottom upward, all formed of either n-type or p-type compound semiconductor crystal. In this light modulation device, in order to capture the light in the optical waveguide layer, the composition ratio of the compound semiconductor is so determined that refractive index is at least approximately 0.1% higher in the optical waveguide layer than in the substrate layer and in the buffer layers. Further, the carrier density is low in the optical waveguide layer and in the buffer layers so that the applied voltage is applied mainly to the optical waveguide layer. Because of such construction, the light modulation device according to the present invention is free from strict conditions required in an etching process, is small in absorption loss of light, and can be used as a component of monolithic optical integrated circuit.
摘要翻译： 根据本发明的光调制装置，从底部向上依次包括基板，基板层，光波导层和缓冲层，全部由n型或p型化合物半导体晶体形成。 在这种光调制装置中，为了捕获光波导层中的光，化合物半导体的组成比被确定为在光波导层中的折射率比衬底层中的折射率高至少高0.1％ 缓冲层。 此外，光波导层和缓冲层中的载流子密度低，使得施加的电压主要应用于光波导层。 由于这样的结构，本发明的光调制装置没有严格的蚀刻处理条件，光的吸收损耗小，可以作为单片光集成电路的一个部件使用。
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公开(公告)号：US4444462A
公开(公告)日：1984-04-24
申请号：US297177
申请日：1981-08-28
申请人： Kimizo Ono , Yoshikazu Nishiwaki , Koichi Tsuno , Tohru Iwai , Mitsuru Nishikawa
发明人： Kimizo Ono , Yoshikazu Nishiwaki , Koichi Tsuno , Tohru Iwai , Mitsuru Nishikawa
CPC分类号： G02B6/06
摘要： A protective lid is provided in front of an image-forming lens mounted on the forward end of a picture image transmission line which comprises plural optical fibers bundled in alignment to be remotely controlled from the back end of the transmission line for opening/closing so that the image-forming lens may be protected from particles, vapor or poisonous gas when the transmission line is used in such atmosphere, thereby preventing deterioration of the quality of picture images to be formed.
摘要翻译： 在安装在图像传输线的前端的图像形成透镜的前方设置有保护盖，该图像形成透镜线包括从传输线的后端对准的多个光纤对齐以进行开/关，以便 当在这种大气中使用传输线时，图像形成透镜可以被保护免受颗粒，蒸汽或有毒气体的影响，从而防止将要形成的图像质量的劣化。
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公开(公告)号：US5106584A
公开(公告)日：1992-04-21
申请号：US437287
申请日：1989-11-16
CPC分类号： G01N35/028 , C12M23/04 , C12M23/50 , C12M33/04 , C12M41/36 , C12M41/46 , C12M47/04 , Y10T436/113332
摘要： A cell selecting apparatus which has an extracting and injection section, a tray transport section, a cultivating section, a cell selecting section, and a controller for controlling each section according to the operating conditions which are inputted therein. This arrangement makes it possible to select and isolate the desired cells or microorganisms from mixtures of different types of cells or microorganisms, for example, those which are capable of proliferating over short periods of time and producing antibodies or secretions, from a liquid culture of cells.
摘要翻译： 具有提取和注射部分的细胞选择装置，托盘传送部分，培养部分，细胞选择部分和用于根据输入其中的操作条件控制每个部分的控制器。 这种布置使得可以从不同类型的细胞或微生物的混合物中选择和分离所需的细胞或微生物，例如能够在短时间内能够增殖并产生抗体或分泌物的细胞或微生物从细胞的液体培养物 。
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