公开(公告)号：US4906063A

公开(公告)日：1990-03-06

申请号：US150204

申请日：1988-01-29

申请人： Hidemi Sato ,  Yasuo Hira ,  Shigeru Sasaki ,  Atsuko Fukusima ,  Kazumi Kawamoto

发明人： Hidemi Sato ,  Yasuo Hira ,  Shigeru Sasaki ,  Atsuko Fukusima ,  Kazumi Kawamoto

IPC分类号： G02B6/12 ,  G02B6/122

CPC分类号： G02B6/122

摘要： This invention relates to a wave guide type optical device as an integrated optical device having formed thereon lens and grating having particularly high efficiency and a fabrication method thereof. The present invention is characterized in that a wave guide type optical device having high efficiency and high stability can be fabricated efficiently by forming a buffer layer made of a dielectric substance on a optical wave guide formed near the surface of a substrate having an acousto-optic effect, then forming a light wave control loading layer and finely working the loading layer and the buffer layer to a predetermined shape of a desired optical device.

摘要翻译： 本发明涉及一种作为集成光学元件的波导型光学器件，其特征在于，其具有特别高的效率的透镜和光栅及其制造方法。 本发明的特征在于，可以通过在具有声光的基板的表面附近的光波导上形成由电介质材料制成的缓冲层来高效率地制造具有高效率和高稳定性的波导型光学器件 然后形成光波控制加载层，并将加载层和缓冲层精细加工成所需光学装置的预定形状。

公开(公告)号：US5191624A

公开(公告)日：1993-03-02

申请号：US762935

申请日：1991-09-19

申请人： Kenchi Ito ,  Kazumi Kawamoto ,  Naoya Kanda ,  Yasuo Hira ,  Hidemi Sato ,  Atsuko Fukushima ,  Masataka Shiba ,  Akira Inagaki ,  Minoru Yoshida

发明人： Kenchi Ito ,  Kazumi Kawamoto ,  Naoya Kanda ,  Yasuo Hira ,  Hidemi Sato ,  Atsuko Fukushima ,  Masataka Shiba ,  Akira Inagaki ,  Minoru Yoshida

IPC分类号： G02B6/12 ,  G02F1/335 ,  G11B7/12

CPC分类号： G02B6/12004 ,  G02F1/335 ,  G11B7/1245

摘要： An optical waveguide is comprised of an optical substrate and an optical thin-film optical waveguide layer and formed such that ##EQU1## where .theta. is an output angle, n.sub.o1 is an ordinary refractive index of the optical substrate for an ordinary beam, n.sub.e1 is an extraordinary refractive index of the optical substrate for an extraordinary beam, n.sub.o2 is an ordinary refractive index of the optical thin-film optical waveguide layer for the ordinary beam and n.sub.e2 is an extraordinary refractive index of the optical thin-film optical waveguide layer for the extraordinary beam, and an electrode for generating a surface acoustic wave for diffracting light is formed on the optical waveguide to construct a collinear optical deflector. A method for production of the optical thin-film optical waveguide layer is exemplified wherein a target made of tantalic lilthium niobate or tantalic lithium niobate magnesium and an optical substrate made of lithium tantalate are prepared and an optical thin-film optical waveguide layer having a composition of tantalic lithium niobate or tantalic lithium niobate magnesium is formed on the optical substrate through an ion beam sputtering process into which oxygen can be introduced. Proton substitutes for part of an element constituting the optical thin-film optical waveguide layer.

摘要翻译： 光波导包括光学基板和光学薄膜光波导层，并且被形成为使得θ是输出角度的θIMA1是普通光束的光学基板的普通折射率，ne1是 用于非常光束的光学基板的非常折射率，no2是普通光束的光学薄膜光波导层的普通折射率，ne2是非常优异的光学薄膜光波导层的非常折射率 并且在光波导上形成用于产生用于衍射光的表面声波的电极，以构成共线的光学偏转器。 制备光学薄膜光波导层的方法被制备，其中制备由钽酸铌酸锂或钽酸铌镁制成的靶和由钽酸锂制成的光学衬底，并且制备具有组成的光学薄膜光波导层 通过可以引入氧气的离子束溅射工艺在光学基板上形成铌酸锂或钽酸铌酸镁。 质子代替构成光学薄膜光波导层的元件的一部分。

公开(公告)号：US5274727A

公开(公告)日：1993-12-28

申请号：US879361

申请日：1992-05-07

申请人： Kenchi Ito ,  Kazumi Kawamoto ,  Hiroshi Momiji ,  Yasuo Hira ,  Hidemi Sato ,  Atsuko Fukushima

发明人： Kenchi Ito ,  Kazumi Kawamoto ,  Hiroshi Momiji ,  Yasuo Hira ,  Hidemi Sato ,  Atsuko Fukushima

IPC分类号： G02F1/377 ,  G02F1/37

CPC分类号： G02F1/3775

摘要： A second harmonic generator having a wide acceptance of bandwidth of temperature and/or a high conversion efficiency and a method of fabrication thereof are disclosed. An equidistant arrangement of pole-inverted grating having a rectangular sectional profile and the direction of spontaneous polarization opposite to that of a substrate within an optical waveguide has been known to produce a high conversion efficiency of the second harmonic generator A second harmonic generator having such a structure, which has so far been impossible to fabricate, is formed utilizing the liquid-phase epitaxial method and the ion-implanting method. Further, the substrate and the optical waveguide are formed of the same type of material. The temperature coefficient of the refractive index in the direction perpendicular to the substrate surface is rendered substantially equal to that of the optical waveguide, thereby improving the acceptance of bandwidth of temperature and making possible practical applications of the second harmonic generator.

摘要翻译： 公开了具有对温度带宽的广泛接受和/或高转换效率的二次谐波发生器及其制造方法。 已知具有矩形截面轮廓和与光波导内的衬底相反的自发极化方向的等反转光栅的等距布置产生二次谐波发生器A的高转换效率二次谐波发生器具有这样的 使用液相外延法和离子注入法形成迄今为止不可能制造的结构。 此外，基板和光波导由相同类型的材料形成。 使与基板表面垂直的方向的折射率的温度系数基本上等于光波导的温度系数，从而提高了温度带宽的接受性，并且可以实现二次谐波发生器的实际应用。

公开(公告)号：US5125740A

公开(公告)日：1992-06-30

申请号：US480649

申请日：1990-02-15

申请人： Hidemi Sato ,  Yasuo Hira ,  Atsuko Fukushima ,  Hiroshi Asao ,  Kazumi Kawamoto ,  Kenchi Ito ,  Ryuichi Funatsu

发明人： Hidemi Sato ,  Yasuo Hira ,  Atsuko Fukushima ,  Hiroshi Asao ,  Kazumi Kawamoto ,  Kenchi Ito ,  Ryuichi Funatsu

IPC分类号： G01N21/41 ,  G01N21/43 ,  G01N21/84 ,  G02B6/13 ,  G02B6/132 ,  H01S5/00

CPC分类号： G01N21/43 ,  G01N21/8422 ,  G01N2021/4126 ,  G01N21/412 ,  G01N21/552

摘要： A sample is located so as to be close to a prism and a light beam coming from a light source is projected to the prism while varying the incident angle to the prism as a parameter. The incident light beam to the prism is propagated therein and light emerging from the bottom surface of the prism, which is in contact with the sample, is projected to the sample. At the same time the intensity of light reflected by the bottom surface of the prism is measured. Optical constants such as the refractive index, the film thickness, the distribution of the refractive index, etc. are obtained by calculation, starting from measured values thus obtained.

摘要翻译： 将样品定位成靠近棱镜，并且来自光源的光束作为参数改变与棱镜的入射角度而投射到棱镜。 到棱镜的入射光束在其中传播，并且从与样品接触的棱镜的底表面出射的光被投射到样品。 同时测量由棱镜底面反射的光的强度。 光学常数如折射率，膜厚度，折射率分布等通过计算得到，从所获得的测量值开始。

公开(公告)号：US5195070A

公开(公告)日：1993-03-16

申请号：US551794

申请日：1990-07-12

申请人： Masataka Shiba ,  Kazumi Kawamoto ,  Yasuo Hira ,  Akira Inagaki ,  Hidemi Sato ,  Kenchi Ito ,  Atsuko Fukushima ,  Ryuichi Funatsu

发明人： Masataka Shiba ,  Kazumi Kawamoto ,  Yasuo Hira ,  Akira Inagaki ,  Hidemi Sato ,  Kenchi Ito ,  Atsuko Fukushima ,  Ryuichi Funatsu

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/14

CPC分类号： G11B7/131 ,  G11B7/0903 ,  G11B7/1245 ,  G11B7/127 ,  G11B7/14

摘要： Using an optical pickup, recording/reproducing of information is performed by irradiating light beams to an optical recording medium to form light spots. The optical pickup includes means for generating plural light beams, an optical waveguide for guiding the plural light beams in a row into a flat space, and a light deflecting element for deflecting the light beams, which run in the optical waveguide, within a plane formed by a vector perpendicular to a plane of the optical waveguide and a directional vector of the light beams. The light deflecting element deflects the plural light spots, which are to be arranged in a row, in a direction perpendicular to the light spot row to perform micro seek.

摘要翻译： 使用光学拾取器，通过将光束照射到光学记录介质以形成光斑来进行信息的记录/再现。 光拾取器包括用于产生多个光束的装置，用于将多个光束一行地引导到平坦空间中的光波导和用于使在光波导中延伸的光束偏转在形成的平面内的光偏转元件 通过垂直于光波导的平面的矢量和光束的方向矢量。 光偏转元件在垂直于光点行的方向上偏转排列成一列的多个光点，以执行微寻迹。

公开(公告)号：US5070488A

公开(公告)日：1991-12-03

申请号：US372639

申请日：1989-06-28

申请人： Atsuko Fukushima ,  Yasuo Hira ,  Hidemi Sato ,  Kazumi Kawamoto ,  Kenchi Ito ,  Masataka Shiba ,  Akira Arimoto

发明人： Atsuko Fukushima ,  Yasuo Hira ,  Hidemi Sato ,  Kazumi Kawamoto ,  Kenchi Ito ,  Masataka Shiba ,  Akira Arimoto

IPC分类号： G02B6/124 ,  G02B6/34 ,  G02B6/42 ,  G02F1/335 ,  G11B7/12 ,  G11B7/125 ,  G11B7/135

CPC分类号： G02B6/4246 ,  G02B6/124 ,  G02B6/34 ,  G02B6/42 ,  G02F1/335 ,  G11B7/1245 ,  G11B7/125 ,  G11B7/1384

摘要： An optical integrated circuit and an optical apparatus used in optical communication or an opto-electronics apparatus such as an optical disk recording apparatus, in which various kinds of aberration caused by wavelength variation of a light source when a semiconductor laser is used as the light source. An aberration correcting grating having such grating pitches as to nearly satisfy the Bragg condition preferably with respect to a certain wavelength of the semiconductor laser beam is used. As a result, lowering of incidence (entrance) and radiation (exit) coupling efficiencies of the grating coupler and aberration such as chromatic aberration can be prevented. Even if a multi-mode semiconductor laser is used as a light source, the characteristics of the optical integrated circuit and optical apparatus do not vary largely.

摘要翻译： 在光通信中使用的光集成电路和光学装置或光电记录装置等光电装置，其中当使用半导体激光器作为光源时，由光源的波长变化引起的各种像差 。 使用具有这样的光栅间距几乎满足布拉格条件的像差校正光栅，优选地相对于半导体激光束的特定波长。 结果，可以防止光栅耦合器的入射（入射）和辐射（出射）耦合效率的降低以及像差等像差。 即使使用多模式半导体激光器作为光源，光集成电路和光学装置的特性也不会很大变化。

公开(公告)号：US07412120B2

公开(公告)日：2008-08-12

申请号：US11030106

申请日：2005-01-07

申请人： Hiroshi Yamamoto ,  Masanobu Okayasu ,  Kazumi Kawamoto

发明人： Hiroshi Yamamoto ,  Masanobu Okayasu ,  Kazumi Kawamoto

IPC分类号： G02B6/12 ,  G02B6/26 ,  G02B6/36

CPC分类号： G02B6/42 ,  H01L2224/48091 ,  H01L2924/3011 ,  H01L2924/3025 ,  H01S5/02276 ,  H01S5/06226 ,  H01S5/0683 ,  H01L2924/00014 ,  H01L2924/00

摘要： The present invention provides a structure that makes high-frequency transmission possible in an optical module and in the optical transmission apparatus using the module. The invention has means that excludes, from the service band of the optical module, frequency of the standing waves occurring at connection between the first high-frequency signal line substrate and second high-frequency signal line substrate in the optical module.

摘要翻译： 本发明提供一种在光模块和使用该模块的光传输装置中进行高频传输的结构。 本发明具有从光模块的服务频带排除在光模块中的第一高频信号线基板与第二高频信号线基板之间的连接处发生的驻波的频率的装置。

公开(公告)号：US07177549B2

公开(公告)日：2007-02-13

申请号：US10222480

申请日：2002-08-16

申请人： Naoki Matsushima ,  Kazumi Kawamoto ,  Hideyuki Kuwano ,  Yoshiaki Niwa ,  Tetsuya Kato

发明人： Naoki Matsushima ,  Kazumi Kawamoto ,  Hideyuki Kuwano ,  Yoshiaki Niwa ,  Tetsuya Kato

IPC分类号： H04B10/04 ,  H04B10/00 ,  G02F1/03

CPC分类号： H01P1/02

摘要： A transmission line with a bending portion is provided, which line comprises any one of a coplanar line, another coplanar waveguide line formed on the dielectric substrate under which a ground layer is provided and a coplanar strip line. A chamfered portion is provided on the outer angular portion of the bending portion of the signal wiring conductor and a triangular conductor is disposed to an inner angular portion thereof. Given that length of the chamfered portion is defined as a, and length of the wiring edge side of the triangular conductor is defined as b and width of the signal wiring conductor is defined as c, it is arranged such that a is greater than b+c×square root of 2. Thereby, a transmission line or an optical module of smaller reflection loss at the bending portion thereof and of improved high-frequency characteristics is provided.

摘要翻译： 提供具有弯曲部分的传输线，该线包括形成在介质基底上的共面线，形成在其上的接地层和共面带状线之间的另一共面波导线中的任何一个。 在信号布线导体的弯曲部的外角部设置有倒角部，并且在其内角部设置三角形导体。 假设倒角部分的长度被定义为a，并且三角形导体的布线边缘侧的长度被定义为b，并且信号布线导体的宽度被定义为c，其布置成使得a大于b + 因此，提供了在其弯曲部分处具有较小反射损耗并且具有改善的高频特性的传输线或光模块。

公开(公告)号：US06937406B2

公开(公告)日：2005-08-30

申请号：US10645986

申请日：2003-08-22

申请人： Naoki Matsushima ,  Hideo Sotokawa ,  Hideyuki Kuwano ,  Yoshiaki Niwa ,  Keiichi Yamada ,  Masahiro Hirai ,  Kazumi Kawamoto ,  Shohei Hata ,  Toshiaki Takai

发明人： Naoki Matsushima ,  Hideo Sotokawa ,  Hideyuki Kuwano ,  Yoshiaki Niwa ,  Keiichi Yamada ,  Masahiro Hirai ,  Kazumi Kawamoto ,  Shohei Hata ,  Toshiaki Takai

IPC分类号： G02B6/42 ,  G02B7/00 ,  G02B7/02

CPC分类号： G02B6/4204 ,  G02B6/423 ,  G02B6/4239 ,  G02B7/025

摘要： The present invention provides an optical module and a method for manufacturing the optical module, in which a V-shaped or trapezoidal groove having a first slope and a second slope facing to the first slope is formed at the surface of a silicon substrate by anisotropic etching, an adhesive is applied to a portion of at least the second slope in a region except the first slope of the groove, and lens is fixedly put in the groove.

摘要翻译： 本发明提供了一种光学模块及其制造方法，其中通过各向异性蚀刻在硅衬底的表面上形成具有第一斜面和第一斜面的第一斜面的V形或梯形槽 在除了槽的第一斜面之外的区域中，至少第二斜面的一部分施加粘合剂，并且将透镜固定地放入槽中。

公开(公告)号：US06912363B2

公开(公告)日：2005-06-28

申请号：US09919667

申请日：2001-07-31

申请人： Hiroaki Furuichi ,  Kazumi Kawamoto ,  Katsumi Kuroguchi ,  Atsuhiro Yamamoto ,  Keiichi Yamada ,  Tsutomu Okumura ,  Kazuo Takai ,  Shohei Hata

发明人： Hiroaki Furuichi ,  Kazumi Kawamoto ,  Katsumi Kuroguchi ,  Atsuhiro Yamamoto ,  Keiichi Yamada ,  Tsutomu Okumura ,  Kazuo Takai ,  Shohei Hata

IPC分类号： H01S5/00 ,  H01S5/022 ,  H01S5/0687 ,  H04B10/04

CPC分类号： H01S5/0687 ,  H01S5/005 ,  H01S5/02252 ,  H01S5/02284

摘要： An optical module for use in detecting a plurality of different wavelengths by making use of the multiple wavelength selectivity of an etalon. The optical module includes a semiconductor laser, a lens for converting a beam emitted from the semiconductor laser into a substantially parallel beam, a beam splitter for splitting the converted beam into a reflected beam and a transmitted beam, and a light-receiving element disposed such that one of the split beams is incident thereupon through an etalon, wherein a center of the reflected beam from the etalon occurring as the beam is incident upon the etalon is arranged to return to a region other than a beam-emitting portion of the semiconductor laser.

摘要翻译： 一种用于通过利用标准具的多重波长选择性来检测多个不同波长的光学模块。 光学模块包括半导体激光器，用于将从半导体激光器发射的光束转换成基本上平行的光束的透镜，用于将转换后的光束分解为反射光束和透射光束的分束器，以及设置在其上的光接收元件 所述分束中的一个通过标准具入射到其中，其中，当所述光束入射在所述标准具上时出现的来自所述标准具的所述反射光束的中心被布置成返回到所述半导体激光器的光束发射部分以外的区域 。