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1. 发明授权

US5321782A Directional coupler type optical function element 失效
标题翻译：定向耦合器型光功能元件
公开(公告)号：US5321782A
公开(公告)日：1994-06-14
申请号：US82055
申请日：1993-06-22
申请人： Akira Mugino , Hisaharu Yanagawa
发明人： Akira Mugino , Hisaharu Yanagawa
IPC分类号： G02F1/313 , G02B6/26
CPC分类号： G02F1/3132 , G02F2201/125
摘要： A directional coupler type optical function element with a high extinction ratio, in which a junction of a 2-input/2-output directional coupler or 1-input/2-output directional coupler, formed of a semiconductor or dielectric, is formed by successively optically connecting, from the input side to the output side, a front-stage partial junction, front-stage partial junction with electrode, central partial junction, rear-stage partial junction with electrode, and rear-stage partial junction, each having a predetermined length. The connection state at the front-stage partial junction and an incidence-side lead section optically connected thereto and the connection state at the rear-stage partial junction and an emergence-side lead section optically connected thereto cancel each other, thereby equivalently providing a symmetrical connection state and preventing the extinction ratio for a cross mode from lowering. Moreover, by forming the central partial junction with a proper length, the extinction ratio for a through mode can be kept high enough. Thus, high extinction ratio characteristics can be enjoyed for both of the cross and through modes.
摘要翻译：具有高消光比的定向耦合器型光功能元件，其中由半导体或电介质形成的2输入/ 2输出定向耦合器或1输入/ 2输出定向耦合器的接点依次形成从输入侧到输出侧，将前级部分结，与电极的前级部分结，中心部分结，与电极的后级部分结以及后级部分结光学地连接，每个具有预定的长度。前级部分接点处的连接状态和与其光学连接的入射侧引线部分和后级部分接合处的连接状态和与其光学连接的出射侧引线部分相互抵消，从而等效地提供对称连接状态，防止交叉模式的消光比降低。此外，通过形成具有适当长度的中心部分结，通过模式的消光比可以保持足够高。因此，对于交叉模式和通过模式都可以享受高消光比特性。

2. 发明授权

US5453874A Semiconductor optical component and manufacturing method therefor 失效
标题翻译：半导体光学元件及其制造方法
公开(公告)号：US5453874A
公开(公告)日：1995-09-26
申请号：US90075
申请日：1993-09-02
申请人： Takahiro Ono , Hisaharu Yanagawa
发明人： Takahiro Ono , Hisaharu Yanagawa
IPC分类号： G02F1/313 , H01S5/026 , H01S5/20 , H01S5/50 , G02B6/12
CPC分类号： H01S5/026 , G02F1/3138 , H01S5/20 , H01S5/50
摘要： A manufacturing method for a semiconductor optical component in which ridge-shaped semiconductor light amplifier sections and ridge-shaped semiconductor waveguides connected thereto are integrated on the same substrate includes the steps of forming the ridge-shaped semiconductor light amplifier sections having a path width narrower than that of the ridge-shaped semiconductor waveguide at the appropriate positions on the substrate on which the ridge-shaped semiconductor light amplifier sections are to be formed; and forming the ridge-shaped semiconductor waveguide at the remaining positions other than the appropriate positions so as to connect to the ridge-shaped semiconductor light amplifier sections. The semiconductor optical component manufactured by this method provides high current density because the confining of the current injected to the light amplifier is strengthened. Therefore, it is useful as an optical component which can perform light amplification efficiently even if a small current is injected.
摘要翻译： PCT No.PCT / JP92 / 01526 Sec。 371日期：1993年9月2日 102（e）1993年9月2日PCT PCT 1991年11月20日PCT公布。公开号WO93 / 10478 日期：1993年5月27日。一种半导体光学部件的制造方法，其中连接有脊形半导体光放大器部分和脊形半导体波导的集成在同一基板上的步骤包括：形成脊形半导体光放大部分在要形成脊形半导体光放大器部分的基板上的适当位置上具有比脊形半导体波导窄的路径宽度; 以及在适当位置以外的其余位置形成脊形半导体波导，以连接到脊形半导体光放大部。通过该方法制造的半导体光学部件由于注入到光放大器的电流的限制被加强，因此提供高的电流密度。因此，即使注入小电流，也可以有效地进行光放大的光学部件。

3. 发明授权

US5396569A Optical line monitoring method and an apparatus permitting simultaneous line monitoring and information communication 失效
标题翻译：光线路监控方法和允许同时进行线路监控和信息通信的设备
公开(公告)号：US5396569A
公开(公告)日：1995-03-07
申请号：US130354
申请日：1993-10-01
申请人： Hisaharu Yanagawa , Takeo Shimizu , Shiro Nakamura , Isao Ohyama , Izumi Sankawa
发明人： Hisaharu Yanagawa , Takeo Shimizu , Shiro Nakamura , Isao Ohyama , Izumi Sankawa
IPC分类号： G01M11/00 , G02B6/12 , G02B6/122 , G02B6/293 , H04B10/07 , H04B10/071 , H04B10/077 , H04B10/272 , G02B6/28 , H04J14/02
CPC分类号： H04B10/071 , G01M11/3136 , H04B10/07
摘要： An optical line monitoring method and an apparatus for locating a failure point in an optical communication system, wherein a plurality of types of inspection light rays having wavelengths which are determined by cut-off wavelengths, which differ from each other, of short-wavelength pass filters installed at a plurality of branched ports of an optical coupler/splitter of the communication system are sent from a light source having variable wavelengths into one or more corresponding optical fiber lines of the system in sequence via an optical directional coupler and the optical coupler/splitter. Each time reflected light, corresponding to the inspection light, from one or more optical fiber lines is received, an output representing the intensity level of the reflected light is sent from a light receiver to an arithmetic circuit and stored in the arithmetic circuit. The arithmetic circuit calculates the reflected light intensity levels which correspond to the individual optical fiber lines according to the light receiver outputs which individually correspond to inspection light rays, whereby the position of the failure in the optical fiber line incurring the failure is identified.
摘要翻译：一种用于定位光通信系统中的故障点的光线监视方法和装置，其中具有短波长通过的彼此不同的截止波长确定的波长的多种类型的检查光线安装在通信系统的光耦合器/分离器的多个分支端口处的滤波器从具有可变波长的光源经由光学定向耦合器和光耦合器/光耦合器顺序地发送到系统的一个或多个对应的光纤线路中，分离器每次接收到来自一个或多个光纤线路的反射光，对应于检查光的反射光，表示反射光的强度水平的输出从光接收器发送到运算电路并存储在运算电路中。算术电路根据与检测光线分别对应的光接收器输出，计算与各个光纤线路对应的反射光强度水平，从而识别出导致故障的光纤线路中的故障位置。

4. 发明授权

US5390267A Optical fiber/terminal connecting device 失效
标题翻译：光纤/终端连接装置
公开(公告)号：US5390267A
公开(公告)日：1995-02-14
申请号：US184781
申请日：1994-01-21
申请人： Hisaharu Yanagawa , Takeo Shimizu
发明人： Hisaharu Yanagawa , Takeo Shimizu
IPC分类号： G02B6/28 , G02B6/30 , G02B6/38
CPC分类号： G02B6/28 , G02B6/30 , G02B6/3885
摘要： An optical connecting device including an optical waveguide substrate having a plurality of optical waveguides, at least two fiber arranging members connected to at least one connecting end surface of the optical waveguide substrate, and an optical fiber disposed in the position controlling means of the fiber arranging members, wherein the connecting end surfaces of the optical wave guides and the optical fiber are brought in contact with each other, thereby the optical waveguides and the optical fiber are optically connected to each other. An optical connecting device including a first optical connector having a plurality of hole groups formed of a first fiber through hole and a pair of first positioning pin holes provided in both sides of the first fiber through hole, and a first optical fiber inserted into the first through hole such that its connecting end surface is exposed, a plurality of second optical connectors having a second fiber through hole and a pair of second positioning pin holes provided in both sides of the second fiber through hole, and a second optical fiber inserted into the second through hole such that its connecting end surface is exposed, and positioning pins inserted into first and second positioning pin holes, wherein the connecting end surfaces of of the first and second optical connectors are brought into contact with each other.
摘要翻译：一种光连接装置，包括具有多个光波导的光波导基板，连接到光波导基板的至少一个连接端面的至少两个光纤排列构件，以及布置在光纤布置的位置控制装置中的光纤其中光波导和光纤的连接端面彼此接触，从而使光波导和光纤彼此光学连接。一种光学连接装置，包括具有由第一光纤通孔形成的多个孔组的第一光学连接器和设置在第一光纤通孔的两侧的一对第一定位销孔，以及插入到第一光纤通孔中的第一光纤通孔，使得其连接端面露出，具有第二纤维通孔的多个第二光连接器和设置在第二光纤通孔两侧的一对第二定位销孔，以及插入到第二光纤通孔中的第二光纤第二通孔使得其连接端面露出，并且定位销插入第一和第二定位销孔中，其中第一和第二光学连接器的连接端表面彼此接触。

5. 发明授权

US5378256A Method of manufacturing silica waveguide optical components 失效
标题翻译：二氧化硅波导光学部件的制造方法
公开(公告)号：US5378256A
公开(公告)日：1995-01-03
申请号：US78424
申请日：1993-06-16
申请人： Mino Green , R. R. A. Syms , Andrew S. Holmes , Ken Ueki , Hisaharu Yanagawa
发明人： Mino Green , R. R. A. Syms , Andrew S. Holmes , Ken Ueki , Hisaharu Yanagawa
IPC分类号： G02B6/13 , C03B8/02 , C03B19/12 , C03B20/00 , C03C1/00 , G02B6/132 , C03C25/02 , C03B37/023
CPC分类号： C03C1/006 , G02B6/132
摘要： This invention describes a method of manufacturing silica waveguide optical components in which silica glass films are laminated on a substrate by repeating a unit operation in which a sol material, a precursor of glass particles, is coated and then the coated layer is heated in an oxygen atmosphere. wherein the heating temperature is controlled in such a manner that the radius of curvature of warping of the substrate is 2 m or more after the coated layer is heated, thereby preventing cracking in the formed silica glass film and/or peeling of the coated layer. At locations where a difference in height is present, at least when sol is coated first time, the thickness of the coated layer is less than that of one of the subsequent coated layers.
摘要翻译：本发明描述了一种制造二氧化硅波导光学部件的方法，其中通过重复其中涂覆溶胶材料，玻璃颗粒的前体，然后将涂层在氧气中加热的单元操作将二氧化硅玻璃膜层压在基板上大气层。其特征在于，加热温度被控制为使得在涂层被加热后基材的翘曲曲率半径为2μm以上，从而防止形成的石英玻璃膜的裂纹和/或涂层的剥离。在存在高差的位置处，至少当第一次涂布溶胶时，涂层的厚度小于其后的涂布层的厚度。

6. 发明授权

US5361382A Method of connecting optical waveguide and optical fiber 失效
标题翻译：连接光波导和光纤的方法
公开(公告)号：US5361382A
公开(公告)日：1994-11-01
申请号：US966147
申请日：1993-01-07
申请人： Shirou Nakamura , Takeo Shimizu , Hisaharu Yanagawa , Toshihiko Ohta , Takashi Shigematsu , Toshihiro Ochiai , Koichi Kobayashi
发明人： Shirou Nakamura , Takeo Shimizu , Hisaharu Yanagawa , Toshihiko Ohta , Takashi Shigematsu , Toshihiro Ochiai , Koichi Kobayashi
IPC分类号： G02B6/30 , G02B6/38
CPC分类号： G02B6/3838 , G02B6/30 , G02B6/3839 , G02B6/3865 , G02B6/3858 , G02B6/3873 , G02B6/3885 , Y10S359/90
摘要： A method of connecting waveguides and optical fibers includes the steps of forming the waveguides and a marker at the same time on a waveguide substrate when patterning the waveguides by a photolithography method, forming a clad layer on a region other than another region when the marker is formed so as to embed the waveguides, and forming a fitting pin groove at a position corresponding to a position of the marker. By using this fitting pin groove, a waveguide module and an optical fiber connector are connected so as to connect each of the waveguides and each of the optical fibers with each other. With this method, waveguides and optical fibers can be aligned and connected with each other easily and in a short period of time without employing an expensive aligning device.
摘要翻译： PCT No.PCT / JP92 / 00643 Sec。 371日期：1993年1月7日 102（e）日期1993年1月7日PCT提交1992年5月20日PCT公布。出版物WO92 / 21047 日期：1992年11月26日。一种连接波导和光纤的方法包括以下步骤：在通过光刻法对波导进行图案化时在波导基板上同时形成波导和标记物，在其它区域上形成覆盖层比标记物形成为嵌入波导时的另一区域，并且在与标记的位置对应的位置处形成嵌合销槽。通过使用该嵌合销槽，连接波导模块和光纤连接器，以将每个波导和每个光纤彼此连接。利用这种方法，波导和光纤可以容易地并且在短时间内彼此对准和连接，而不需要使用昂贵的对准装置。

7. 发明授权

US5177804A Waveguide-type optical switch 失效
标题翻译：波导型光开关
公开(公告)号：US5177804A
公开(公告)日：1993-01-05
申请号：US850465
申请日：1992-03-11
申请人： Takeo Shimizu , Hisaharu Yanagawa
发明人： Takeo Shimizu , Hisaharu Yanagawa
IPC分类号： G02B6/36 , G02B6/35 , G02B26/08
CPC分类号： G02B6/3508 , G02B6/3546 , G02B6/3572 , G02B6/358 , G02B6/3582
摘要： A planar waveguide-type optical switch comprising: a first base including a substrate, a plurality of planar waveguide pairs having different optical connection functions and arranged at predetermined pair spaces on the substrate, and a set of butting end faces, the respective end faces of waveguides constituting the plurality of waveguide pairs being exposed on the butting end faces at predetermined pitches; and second and third bases each having a joint end face butted to each corresponding butting end face of the first base, and provided with at least a set of optical fiber pairs optically connected to optical transmission routes and arranged at the same pitch as the waveguides, the respective end faces of optical fibers constituting the set of optical fiber pairs being exposed on the joint end faces. In this planar waveguide type optical switch, any of the first to third bases butt-connected to one another is moved parallel for the pair space of the planar waveguide pairs along the butting end face so that at least a set of optical fiber pairs of the second and third bases connected to a predetermined planar waveguide pair out of the plurality of planar waveguide pairs are optically connected to a desired planar waveguide pair, whereby the optical transmission routes are switched.

8. 发明授权

US5148505A Optical semiconductor waveguide switch 失效
标题翻译：光电半导体波导开关
公开(公告)号：US5148505A
公开(公告)日：1992-09-15
申请号：US686610
申请日：1991-04-17
申请人： Hisaharu Yanagawa , Yoshiyuki Kamata , Ken Ueki , Hidehisa Miyazawa
发明人： Hisaharu Yanagawa , Yoshiyuki Kamata , Ken Ueki , Hidehisa Miyazawa
IPC分类号： G02F1/313
CPC分类号： G02F1/3138
摘要： An optical switch includes at least one input optical semi-conductor waveguide. Two output optical semiconductor waveguides are connected at a branch point to the input optical waveguide, and diverge from the branch point with a preset angle .theta. (degree) between them. A refractive index controlling portion is located on at least one of the output optical waveguides and away from the branch point. The refractive index controlling portion effects a light mode cut-off by electromagnetically causing a reduction of the refractive index of the associated output optical waveguide.

9. 发明授权

US5146518A Optical directional coupler device and a method of driving same 失效
标题翻译：光学方向耦合器件及其驱动方法
公开(公告)号：US5146518A
公开(公告)日：1992-09-08
申请号：US674567
申请日：1991-03-25
申请人： Hon-Ming Mak , Hisaharu Yanagawa
发明人： Hon-Ming Mak , Hisaharu Yanagawa
IPC分类号： G02F1/01 , G02F1/313
CPC分类号： G02F1/3133 , G02F2001/0144 , G02F2201/125
摘要： There is provided an optical functional device having a coupling portion in which two optical waveguides formed of semiconductor material are evanescent-coupled to each other and arranged in parallel and comprising voltage application electrodes electrically connected to each other and disposed on an upstream side portion of one of the two optical waveguides and a downstream side portion of the other optical waveguide and current injection electrodes electrically connected to each other, disposed on an downstream side portion of the former one of the two optical waveguides and an upstream side portion of the other optical waveguide and electrically isolated from the voltage application electrodes; wherein N-stage (N is an integer larger than 2) electrodes of reversal .DELTA..beta. structure are continuously disposed in the optical waveguide, first electrodes electrically connected to each other are disposed on the upsteam side portion of one of the two optical waveguides and the downstream side portion of the other optical waveguide between an Mth (M is an integer which satisfies the relation that 1.ltoreq.M.ltoreq.N-1) stage electrode and an (M+1)th stage electrode and second electrodes which are electrically connected to each other but are electrically separated from the first electrodes are disposed on the downstream side portion of the former one of the two optical waveguides and the upsteam side portion of the other optical waveguide. The optical functional device can be operated as an optical splitter or polarization switch by combining the current injection operation and the voltage application operation with respect to the electrodes.

10. 发明授权

US4958897A Thin film optical component for use in optical transmission lines and method of manufacturing the same 失效
标题翻译：用于光传输线路的薄膜光学部件及其制造方法
公开(公告)号：US4958897A
公开(公告)日：1990-09-25
申请号：US367769
申请日：1989-06-16
申请人： Hisaharu Yanagawa , Toshihiro Ochiai , Hirokazu Hayakawa , Hidehisa Miyazawa
发明人： Hisaharu Yanagawa , Toshihiro Ochiai , Hirokazu Hayakawa , Hidehisa Miyazawa
IPC分类号： G02B6/00 , G02B6/024 , G02B6/26 , G02B6/293 , G02B6/34 , G02B6/36
CPC分类号： G02B6/2552 , G02B6/12007 , G02B6/264 , G02B6/29361 , G02B6/29368 , G02B6/2938 , G02B6/3636 , G02B6/3652
摘要： An optical component and a manufacturing method therefor are provided, in which an optical member is arranged across a spot-size enlarged portion of an optical fiber. The spot-size enlarged portion is formed either by heating and drawing an optical fiber to reduce its diameter or by diffusing core dopant of an optical fiber outwardly while heating the same. The optical component functions as an optical filter, an optical attenuator, a polarizer, a wavelength division multiplexer/demultiplexer or the like, depending on selection of the optical member.
摘要翻译：提供了一种光学部件及其制造方法，其中光学部件跨越光纤的光点尺寸放大部分布置。点尺寸放大部分通过加热和拉伸光纤以减小其直径或通过在加热光纤的同时向外漫射光纤的核掺杂剂而形成。取决于光学构件的选择，光学部件用作滤光器，光衰减器，偏振器，波分复用器/解复用器等。

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