公开(公告)号：US5208800A

公开(公告)日：1993-05-04

申请号：US683724

申请日：1991-04-11

申请人： Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

发明人： Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

IPC分类号： G02B6/126 ,  G02B6/42 ,  G11B7/12 ,  G11B11/10 ,  G11B11/105

CPC分类号： G02B6/126 ,  G11B11/10543 ,  G11B7/124

摘要： A magneto-optical signal detection device comprising a thin film type optical waveguide unit having a substrate on which a waveguide is formed. The unit has a coupling portion for coupling two polarization components simultaneously in a same plane of the waveguide as a TE mode and a TM mode. The modes TE and TM are included in reflection light reflected from a magneto-optical recording medium and perpendicular to each other. The unit also has a TE-TM mode separating portion having a taper boundary. A waveguide layer is gradually thinned in the taper boundary toward an outer end thereof.

摘要翻译： 一种磁光信号检测装置，包括具有形成波导的基板的薄膜型光波导单元。 该单元具有用于在波导的同一平面中同时耦合两个偏振分量的耦合部分，如TE模式和TM模式。 模式TE和TM包括在从磁光记录介质反射并且彼此垂直的反射光中。 该单元还具有具有锥形边界的TE-TM模式分离部。 波导层在锥形边界中朝向其外端逐渐变薄。

公开(公告)号：US5119452A

公开(公告)日：1992-06-02

申请号：US534718

申请日：1990-06-07

申请人： Kiyoshi Yokomori ,  Yoshinobu Nakayama ,  Shigeyoshi Misawa ,  Tami Isobe ,  Syunsuke Fujita ,  Hiroyoshi Funato ,  Magane Aoki

发明人： Kiyoshi Yokomori ,  Yoshinobu Nakayama ,  Shigeyoshi Misawa ,  Tami Isobe ,  Syunsuke Fujita ,  Hiroyoshi Funato ,  Magane Aoki

IPC分类号： G02B6/34 ,  G02B6/42

CPC分类号： G02B6/4212 ,  G02B6/34 ,  G02B6/4204

摘要： A high efficiency prism coupling device that comprises a substrate, an optical waveguide layer disposed on the substrate, a gap adjuster layer disposed on the waveguide layer and a prism secured to the gap adjuster layer through a dielectric adhesive agent. The gap adjuster layer has a refractive index which is lower than that of the waveguide layer. The gap adjuster layer has a recess formed therein for guiding an incident beam to the waveguide layer through a bottom portion thereof. The adhesive agent is disposed in and around the recess and has a refractive index which is higher than that of the waveguide layer. The prism is made from a dielectric material and disposed above the recess of the gap adjuster layer through the adhesive agent. The prism has a refractive index which is higher than that of the waveguide layer. The incident beam is introduced from outside through the prism, the adhesive agent and the bottom portion of the recess to the waveguide layer.

摘要翻译： 一种高效率的棱镜​​耦合器件，包括衬底，设置在衬底上的光波导层，设置在波导层上的间隙调节器层和通过介电粘合剂固定到间隙调节器层的棱镜。 间隙调整层的折射率低于波导层的折射率。 间隙调整器层具有形成在其中的凹部，用于通过其底部将入射光束引导到波导层。 粘合剂设置在凹部中和周围，并且具有比波导层的折射率高的折射率。 棱镜由介电材料制成，并通过粘合剂设置在间隙调节器层的凹槽之上。 棱镜的折射率高于波导层的折射率。 入射光束从外部通过棱镜，粘合剂和凹部的底部引入波导层。

公开(公告)号：US5235589A

公开(公告)日：1993-08-10

申请号：US703294

申请日：1991-05-20

申请人： Kiyoshi Yokomori ,  Tami Isobe ,  Shigeyoshi Misawa ,  Syunsuke Fujita ,  Magane Aoki

发明人： Kiyoshi Yokomori ,  Tami Isobe ,  Shigeyoshi Misawa ,  Syunsuke Fujita ,  Magane Aoki

IPC分类号： G02B6/122 ,  G02B6/34 ,  G02B6/42 ,  G11B7/12 ,  G11B7/135

CPC分类号： G11B7/1359 ,  G02B6/34 ,  G11B7/124

摘要： An apparatus for recording and reproducing optical information includes an optical integration detecting element arranged on an optical path of light from a laser beam source to an optical information recording medium. The optical integration detecting element has an optical waveguide layer formed on a substrate; a photodetector connected to the optical waveguide layer; a first gap layer formed on the optical waveguide layer and having a refractive index lower than that of the optical waveguide layer; a second gap layer formed on the first gap layer and having an opening portion and a refractive index lower than that of the optical waveguide layer; an adhesive layer having a refractive index higher than that of the optical waveguide layer and adhered to the first gap layer such that the opening portion of the second gap layer is filled with the adhesive layer; and a prism adhesively fixed to an upper portion of the adhesive layer and constructed by a dielectric substance having a refractive index higher than that of the optical waveguide layer.

摘要翻译： 一种用于记录和再现光学信息的设备包括：光学积分检测元件，其布置在从激光束源到光学信息记录介质的光的光路上。 光学积分检测元件具有形成在基板上的光波导层; 连接到光波导层的光电检测器; 第一间隙层，形成在所述光波导层上，折射率低于所述光波导层的折射率; 第二间隙层，其形成在所述第一间隙层上，具有比所述光波导层低的开口部和折射率; 粘合剂层，其折射率高于光波导层的折射率，并粘附到第一间隙层，使得第二间隙层的开口部分填充有粘合剂层; 以及粘合地固定在粘合层的上部并由折射率高于光波导层的介电材料构成的棱镜。

公开(公告)号：US4932743A

公开(公告)日：1990-06-12

申请号：US338316

申请日：1989-04-14

申请人： Tami Isobe ,  Kiyoshi Yokomori

发明人： Tami Isobe ,  Kiyoshi Yokomori

IPC分类号： G02B6/34

CPC分类号： G02B6/34

摘要： An optical waveguide device which comprises a substrate, an optical waveguide layer formed on the substrate, a gap adjusting layer formed on the optical waveguide layer, a metallic layer formed on the gap adjusting layer to partly cover the gap adjusting layer and having an opening therein, a dielectric adhesive layer disposed in contact with the gap adjusting layer through the opening of the metallic layer, and a dielectric prism disposed on the adhesive layer. The gap adjusting layer has an index of refraction which is lower than that of the optical waveguide layer. An incident light passes through the opeining of the metallic layer. The dielectric adhesive layer has an index of refraction which is higher than that of the optical waveguide layer. The dielectric prism has an index of refraction which is higher than that of the optical waveguide layer.

摘要翻译： 一种光波导装置，其特征在于，具备：基板，形成在所述基板上的光波导层，形成在所述光波导层上的间隙调整层，形成在所述间隙调整层上的部分覆盖所述间隙调整层的金属层， 通过金属层的开口设置成与间隙调整层接触的介电粘合剂层和设置在粘合剂层上的电介质棱镜。 间隙调整层的折射率低于光波导层的折射率。 入射光通过金属层的操作。 电介质粘合剂层的折射率高于光波导层的折射率。 介质棱镜的折射率高于光波导层的折射率。

公开(公告)号：US4877301A

公开(公告)日：1989-10-31

申请号：US255702

申请日：1988-10-11

申请人： Kiyoshi Yokomori ,  Tami Isobe

发明人： Kiyoshi Yokomori ,  Tami Isobe

IPC分类号： G02B6/13 ,  G02B6/34 ,  G11B7/12 ,  G11B7/135

CPC分类号： G11B7/1384 ,  G02B6/13 ,  G02B6/34 ,  G11B7/124 ,  G11B7/1359

摘要： An optical waveguide device includes an optical waveguide extending straight over a predetermined length, a metal cover layer formed on the optical waveguide at least partly and formed with an opening extending therethrough, and a prism fixedly attached to the metal cover film covering the opening. The prism has an index of refraction higher than that of the optical waveguide and the prism receives an incoming light beam and causes the light beam thus received to be coupled into the optical waveguide through the opening. The device may include a substrate on which the optical waveguide is formed with or without a buffer layer therebetween. A photodetector may also be formed integrally with the optical waveguide at one end thereof for detecting light coupled into and propagating along the optical waveguide. Such a device including a photodetector may be used as an optical component of an optical pick-up for use in an optical information recording and reproducing system.

摘要翻译： 一种光波导装置包括直线延伸预定长度的光波导，至少部分地形成有光波导的金属覆盖层，并且形成有延伸穿过其的开口，以及固定在覆盖开口的金属覆盖膜上的棱镜。 棱镜的折射率高于光波导的折射率，并且棱镜接收入射光束，并使得如此接收的光束通过开口耦合到光波导中。 该器件可以包括其上形成有或不具有缓冲层的光波导的衬底。 光电检测器也可以在其一端与光波导一体形成，用于检测耦合到光波导中并沿光波导传播的光。 包括光电检测器的这种装置可以用作光学信息记录和再现系统中使用的光学拾取器的光学部件。

公开(公告)号：US5418765A

公开(公告)日：1995-05-23

申请号：US188944

申请日：1994-01-27

申请人： Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Masahiko Nakayama

发明人： Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Masahiko Nakayama

IPC分类号： G11B7/12 ,  G11B7/09

CPC分类号： G11B7/124

摘要： A focal point position detector has a light source for emitting light; an optical system for converging light from the light source to an optical recording medium; a coupler for coupling light from the optical recording medium thereto; a waveguide concave mirror for converging light from the coupler; a waveguide convex mirror for slightly reducing a converging degree of light from the waveguide concave mirror; and photodetectors for receiving light from the waveguide convex mirror, The coupler, the waveguide concave and convex mirrors and the photodetectors are integrally formed on a substrate, An apparatus for recording and reproducing optical information has a light source; an optical system for converging light emitted from the light source; an optical waveguide; a coupler for coupling the converged light to the optical waveguide; two waveguide mirrors arranged such that reflected light from the coupler is continuously reflected on the waveguide mirrors; and a photodetector for detecting the light reflected on the waveguide mirrors. The coupler, the optical waveguide, the waveguide mirrors and the photodetector are integrally formed on the same substrate.

摘要翻译： 焦点位置检测器具有用于发光的光源; 用于将来自光源的光会聚到光学记录介质的光学系统; 用于将来自光学记录介质的光耦合到其的耦合器; 用于会聚来自耦合器的光的波导凹面镜; 用于稍微降低来自波导凹面镜的会聚光的波导凸面镜; 以及用于接收来自波导凸面镜的光的光电检测器，耦合器，波导凹凸镜和光电检测器一体地形成在基板上。用于记录和再现光信息的设备具有光源; 用于会聚从光源发出的光的光学系统; 光波导; 用于将会聚光耦合到光波导的耦合器; 两个波导反射镜布置成使得来自耦合器的反射光在波导反射镜上连续反射; 以及用于检测在波导反射镜上反射的光的光电检测器。 耦合器，光波导，波导反射镜和光电检测器一体地形成在同一基板上。

公开(公告)号：US5091982A

公开(公告)日：1992-02-25

申请号：US550569

申请日：1990-07-10

申请人： Kiyoshi Yokomori ,  Shunsuke Fujita ,  Shigeyoshi Misawa

发明人： Kiyoshi Yokomori ,  Shunsuke Fujita ,  Shigeyoshi Misawa

IPC分类号： G02B6/12 ,  G02B6/42 ,  G11B7/12 ,  G11B7/13

CPC分类号： G02B6/12004 ,  G02B6/42 ,  G11B7/1245 ,  G11B7/13

摘要： A waveguide type optical detection apparatus which is provided on an optical integrated circuit that has a waveguide for transmitting a light from point to point through the waveguide, one or more sets of two adjacent photodetectors provided on the waveguide, and one or more light-insensitive areas existing between the two adjacent photodetectors of each set. The waveguide type optical detection apparatus includes a waveguide focusing part and one or more reflection parts, the waveguide focusing part being provided on the waveguide for allowing a light beam passing through the waveguide to be focused on each of the two adjacent photodetectors of each set, and the reflection parts provided adjacent to each of the light-insensitive areas for reflecting each of light beams sent from the waveguide focusing means forward each of the two adjacent photodetectors of each set so that the light beams are received by the photodetectors. The waveguide type optical detection apparatus can be applied to a pickup for an optical disk and a photodetector array for an optical spectrum analyzer.

摘要翻译： 一种波导型光学检测装置，其设置在光集成电路上，该光集成电路具有用于从点到点通过波导传输光的波导，设置在波导上的一组或多组相邻的两个光电检测器，以及一个或多个光不敏感 存在于每组的两个相邻光电检测器之间的区域。 波导型光检测装置包括波导聚焦部分和一个或多个反射部分，波导聚焦部分设置在波导上，用于允许通过波导的光束聚焦在每组的两个相邻光电检测器中的每一个上， 以及与每个不透光区域相邻设置的反射部分，用于将从波导聚焦装置发送的每个光束反射到每组的两个相邻光电检测器中的每一个，使得光束被光电检测器接收。 波导型光学检测装置可以应用于光盘的拾取器和用于光谱分析器的光电检测器阵列。

公开(公告)号：US5719981A

公开(公告)日：1998-02-17

申请号：US295429

申请日：1994-08-25

申请人： Ikuo Katoh ,  Kiyoshi Yokomori

发明人： Ikuo Katoh ,  Kiyoshi Yokomori

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/42 ,  G02B6/10

CPC分类号： G02B6/122 ,  G02B6/12004 ,  G02B6/42 ,  G02B2006/12071

摘要： An optical integrated circuit for preventing unnecessary optical waves from outside or scattered in a waveguide. The optical integrated circuit has an substrate, a wave guide which has a core layer and at least a clad layer formed on the substrate, in which an optical wave is guided and transmitted, and a cover layer of which material has a high optical wave absorption ratio, which is formed on the waveguide partially or entirely.

摘要翻译： 一种用于防止外部不必要的光波或在波导中散射的光学集成电路。 光集成电路具有基板，波导，其具有芯层和至少形成在基板上的覆盖层，其中光波被引导和透射，以及覆盖层，其材料具有高的光波吸收 比率，部分或全部在波导上形成。

公开(公告)号：US5060214A

公开(公告)日：1991-10-22

申请号：US383029

申请日：1989-07-20

申请人： Masahiko Nakayama ,  Toshihiro Shigemori ,  Haruhiko Kono ,  Kiyoshi Yokomori

发明人： Masahiko Nakayama ,  Toshihiro Shigemori ,  Haruhiko Kono ,  Kiyoshi Yokomori

IPC分类号： G11B7/09 ,  G11B11/105

CPC分类号： G11B7/0909 ,  G11B11/10532 ,  G11B7/0901 ,  G11B7/094

摘要： An optical pickup device for an optical recording disk having an information recording surface comprises an objective lens for converging a light beam emitted from a light source onto the information recording surface of the disk so as to form a beam spot thereon along an information track of the disk. At least one light detecting unit comprised of a plurality of photodetectors is provided for the detection of focus and tracking errors and the detection of the position of the optical axis of the objective lens. Each of the photodetectors is able to receive a light beam reflected by the information recording surface of the disk and to produce an output signal which is proportional to the amount of the light beam incident thereon. At least two photodetectors of the light detecting unit are separated from each other through a separation line which is optically parallel to a tangent to the information track of the disk so that a differential signal corresponding to the difference between the levels of the output signals produced by the two photodetectors can be obtained as a lens position detection signal which is used for the detection of position of the optical axis of the objective lens in relation to the photodetectors.

摘要翻译： 一种具有信息记录表面的光记录盘的光学拾取装置，包括用于将从光源发射的光束会聚到盘的信息记录表面上的物镜，以便沿着光盘的信息轨迹形成光束点 磁盘。 提供由多个光电检测器组成的至少一个光检测单元，用于检测聚焦和跟踪误差以及物镜的光轴位置的检测。 每个光电检测器能够接收由盘的信息记录表面反射的光束，并产生与入射在其上的光束的量成比例的输出信号。 光检测单元的至少两个光电检测器通过与光盘的信息轨道的切线光学平行的分离线彼此分开，使得对应于由输出信号产生的输出信号的电平之间的差异的差分信号 可以获得两个光电检测器作为透镜位置检测信号，该信号用于相对于光电检测器检测物镜的光轴的位置。

公开(公告)号：US5337302A

公开(公告)日：1994-08-09

申请号：US93974

申请日：1993-07-13

申请人： Hiroshi Gotoh ,  Masami Emoto ,  Kiyoshi Yokomori

发明人： Hiroshi Gotoh ,  Masami Emoto ,  Kiyoshi Yokomori

IPC分类号： G11B7/135 ,  G11B7/00

CPC分类号： G11B7/1398 ,  G11B7/1376

摘要： An optical data recording and reproduction apparatus which uses a semiconductor laser as a light source is disclosed. The half angle of light issuing from the laser in a junction direction of the laser and the focal length of a condenser lens adapted to focus a laser beam from the laser are adequately selected in such a manner as to satisfy a particular condition.

摘要翻译： 公开了一种使用半导体激光器作为光源的光学数据记录和再现装置。 在激光器的结合方向上从激光器发出的半光角和适于聚焦来自激光器的激光束的聚光镜的焦距被充分地选择以满足特定条件。