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1. 发明专利

JPS5929482A Optical semiconductor device 失效
标题翻译：光学半导体器件
公开(公告)号：JPS5929482A
公开(公告)日：1984-02-16
申请号：JP13854582
申请日：1982-08-11
申请人： Hitachi Ltd
发明人： SATOU HITOSHI , AOKI SATOSHI , HARA MICHIO , MIYAKE KIYOHIDE , IMAI KUNINORI , SHIMIZU JIYUNICHI
IPC分类号： G02B6/42 , H01L33/48 , H01S5/00
CPC分类号： G02B6/421 , G02B6/4219
摘要： PURPOSE:To enable to perform the positonal adjustment of a light-emitting or light-receiving element and an optical fiber by a method wherein said optical fiber is supported by a rigid supporting member, and then it is supported by a plastic deformation member. CONSTITUTION:A semiconductor laser 11 is mounted on a sheath 10 together with a laser mount 12 and the positioning of the optical fiber is performed in advance in such a manner that an output beam will be coupled in a certain degree with the point part 13 of the optical fiber. The supporting cylinder 14 connected to the circumference of a cylinder 7 is formed using a rigid type of material with which the curve of the center axis of a stainless cylinder 7 and an optical fiber 4 will be elastically connected without generating a steep curved part. Displacements (x) and (y) are given to the plastic deformation member and then they are removed on the inner surface of the (x) and (y) which are intersecting at right angle with the laser beam emitting direction Z using a fine adjustment device while monitoring the fiber output obtained by passing an output laser beam through the optical fiber 4, and the amounts of displacement DELTAx and DELTAy are found out. At the same time, the maximum value is obtained by balancing the increased portion of output while reducing the amount of adjustment successively so as to obtain the maximum value which is in excess of the value estabilished in advance under the state wherein the value of output beam is being monitored.
摘要翻译：目的：为了能够通过以下方法执行发光或光接收元件和光纤的正面调整，其中所述光纤由刚性支撑构件支撑，然后由塑性变形构件支撑。构成：半导体激光器11与激光座12一起安装在护套10上，并且预先执行光纤的定位，使得输出光束将在一定程度上与点部分13 光纤。连接到气缸7的圆周的支撑筒14使用刚性类型的材料形成，不锈钢筒7和光纤4的中心轴线的曲线将弹性地连接而不产生陡峭的弯曲部分。将位移（x）和（y）给予塑性变形构件，然后在与激光发射方向Z成直角相交的（x）和（y）的内表面上移除它们，使用微调同时监测通过使输出激光束通过光纤4而获得的光纤输出，并且发现位移量DELTAx和DELTAY。同时，通过平衡输出的增加部分，同时连续减少调整量来获得最大值，以获得超过在输出光束的值下预先设定的值的最大值正在监视。

2. 发明专利

JPS5440647A PRODUCTION OF OPTICAL BRANCHING DEVICE 失效
公开(公告)号：JPS5440647A
公开(公告)日：1979-03-30
申请号：JP10634377
申请日：1977-09-06
申请人： HITACHI LTD
发明人： FUJITA HIROYUKI , MIYAKE KIYOHIDE , YAMAGUCHI KOUJI
IPC分类号： G02B6/28 , G02B5/00 , G02B27/10
摘要： PURPOSE:To reduce the insertion loss and to increase the mechanical strength by heating and pressurizing the contacting sides of a plurality of bundled fibers into a single fiber and fusing the end face of another fiber having similar diameter to the end face of that single fiber.

3. 发明专利

JPS51129250A THINNFILM OPTICAL MODULATOR 失效
公开(公告)号：JPS51129250A
公开(公告)日：1976-11-10
申请号：JP5318475
申请日：1975-05-06
申请人： HITACHI LTD
发明人： TACHIBANA ATSUSHI , MIYAKE KIYOHIDE
IPC分类号： G02B6/12 , G02F1/03 , G02F1/313
摘要： PURPOSE:Obtain a compact optical modulator with low halfwavelength voltages by phase modulating light after coupling the branching optical paths by impressed electrical field.

4. 发明专利

JPS6125104A Compound lens 失效
标题翻译：化妆镜
公开(公告)号：JPS6125104A
公开(公告)日：1986-02-04
申请号：JP14425684
申请日：1984-07-13
申请人： Hitachi Ltd
发明人： ONODA SEIICHI , KOAKUTSU YASUMASA , KUSANO MASAAKI , TAKEUCHI TAMIO , YANO MASAO , YAMADA YOSHIHARU , IKUSHIMA ICHIRO , MIYAKE KIYOHIDE , TANAKA KATSUKI
IPC分类号： G02B5/00 , G02B3/00 , G02B6/00
摘要： PURPOSE: To improve the fiber coupling efficiency by optical transmission line insertion by providing plural optical transmission lines whose incidence angle and projection angle are equal to each other, and arranging the optical lines in parallel to an optical axis.
CONSTITUTION: A spot light source 1 having light intensity P is provided and optical lines 3 and 4 incident on an optical path 2 at angles θ
1 and θ
2 propagate in the optical transmission line 2 in the thickness direction while reflected totally by the internal reflecting plate 9. Projection line from the optical transmission line 2 is split into light beams 5 and 5', and 6 and 6' having projection angles ±θ
1 and θ
2 , and they have equally divided light intensity. This optical system is equivalent to a system in which two spot light sources 7 and 8 having light intensity P/2 are positioned ±l
1 away from the projection surface of an optical path. Therefore, when outputs of the light sources are coupled with a fiber through the optical transmission line, the distance betwen the light source and the fiber is shortened equivalently and the fiber coupling efficiency is improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供入射角和投影角彼此相等的多条光传输线，并将光线平行于光轴设置，通过光传输线插入来提高光纤耦合效率。构成：提供具有光强度P的点光源1，入射到光路2上的角度θ1和θ2的光线3和4在光传输线2中沿厚度方向传播，同时由内反射板9全部反射来自光传输线2的投射线被分成具有投影角度+或-θ1和θ2的光束5和5'以及6和6'，并且它们具有等分的光强度。该光学系统等效于其中具有光强度P / 2的两个光源7和8距离光路的投影表面位于+或-1.1的系统。因此，当光源的输出通过光传输线与光纤耦合时，光源和光纤之间的距离等效缩短，光纤耦合效率提高。

5. 发明专利

JPS5440646A OPTICAL BRANCHING DEVICE AND PRODUCTION THEREOF 失效
公开(公告)号：JPS5440646A
公开(公告)日：1979-03-30
申请号：JP10634177
申请日：1977-09-06
申请人： HITACHI LTD
发明人： YAMAGUCHI KOUJI , MIYAKE KIYOHIDE , FUJITA HIROYUKI
IPC分类号： H04B10/29 , G02B5/00 , G02B6/28 , G02B27/10 , H04B10/00 , H04B10/27
摘要： PURPOSE:To relatively facilitate the production of an optical branching device and to reduce the size and increase the strength of that device by introducing a fiber with an optical connector into the body of the optical branching body with a slackness and by effecting the welding operation in a manner that the slackened portion is pushed to force the abutting ends into contact.

6. 发明专利

JPS5291444A CONNECTING MEANS OF OPTICAL FIBRE WITH CONNECTOR 失效
公开(公告)号：JPS5291444A
公开(公告)日：1977-08-01
申请号：JP745176
申请日：1976-01-28
申请人： HITACHI LTD
发明人： YAMAGUCHI KOUJI , MIYAKE KIYOHIDE , UEDA MASANOBU
IPC分类号： G02B6/38
摘要： PURPOSE:To improve the performance quality and its working efficiency by means of the connection method which connect the optical fibere with the connector, after which the anaerobic bonding agent adhered on the connecter terminal surface is eliminated by means of absorption after hardening the bonding agent.

7. 发明专利

JPS6128912A Photoelectric and electrooptic converting device 失效
标题翻译：光电转换装置
公开(公告)号：JPS6128912A
公开(公告)日：1986-02-08
申请号：JP14946584
申请日：1984-07-20
申请人： Hitachi Ltd
发明人： ONODA SEIICHI , KUSANO MASAAKI , YANO MASAO , TAKEUCHI TAMIO , KOAKUTSU YASUMASA , YAMADA YOSHIHARU , IKUSHIMA ICHIRO , MIYAKE KIYOHIDE , TANAKA KATSUKI
IPC分类号： G02B6/42 , H01L31/02 , H01L31/0232 , H01L31/12 , H01L33/62
摘要： PURPOSE: To obtain an inexpensive, high-reliability optical transmission module which complies with an increase in function by assembling fiber element wires in one body and thus forming part or the whole of a fiber assembly substrate beyond a range in which there is no evil influence upon output light from a light emitting element and input light to a photodetecting element.
CONSTITUTION: An LED20 is connected to the substrate 11 through the part of a wiring conductor 12 and the fiber assembly substrate 11 consists of fiber element wires 13 forming passages for light and a clad part 14 covering them. Then, fibers are a little larger in refractive index than the clad part, the diameter of the fibers is much smaller than the core diameter of transmission line fibers and the light emission and photodetection area of an optical element, and the numerical aperture is equal to or larger than that of the transmission line fibers. Light from the LED has large divergence as shown by 2d in a figure, but the light is entered into the core 16a of a fiber 15 through the core 24 of the fiber assembly substrate. When this fiber assembly substrate 11 is used, this operates as if the light source position viewed from a fiber end surface were closer by the thickness of the substrate.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得廉价，高可靠性的光传输模块，通过将光纤元件线组装在一体内，从而将光纤组件基板的一部分或全部超过无邪影响的范围，从而实现功能的增加在从发光元件输出光并将光输入到光检测元件时。构成：LED20通过布线导体12的一部分连接到基板11，并且光纤组件基板11由形成光通道的光纤元件布线13和覆盖它们的包层部分14组成。然后，纤维的折射率比包层部分大一点，纤维的直径比传输线纤维的芯直径和光学元件的发光和光电检测面积小得多，数值孔径等于或大于传输线光纤。来自LED的光如图中的2d所示具有大的发散度，但是光通过光纤组件基板的芯24进入光纤15的芯16a。当使用该纤维组装基板11时，其操作就好像从光纤端面观察的光源位置靠近基板的厚度。

8. 发明专利

JPS57159155A PHOTO RECEPTION MODULE 失效
公开(公告)号：JPS57159155A
公开(公告)日：1982-10-01
申请号：JP4388481
申请日：1981-03-27
申请人： HITACHI LTD
发明人： MIYAKE KIYOHIDE
IPC分类号： H04B10/556 , H03K5/04 , H03K6/00 , H04B10/00 , H04B10/69 , H04L25/03
摘要： PURPOSE:To achieve an output with a prescribed pulse width to an input level changed rapidly, by delaying a part of an input signal by a half the pulse width and inputting it as a threshold value of a comparator, in a reception system of an optical communication system. CONSTITUTION:An optical input signal incoming in converted into an electric signal at a photo detector 1 and amplified at an amplifier 2, and a waveform 11 is applied to a comparator 5, a part of this input signal is attenuated by 3 dB at an attenuator 3 and delayed at a delay line 4 by a half an optical input signal pulse width T, and a waveform 12 is inputted as a threshold value of the comparator 5. The comparator 5 is operated when both input signals 11 and 12 are crossed to generate a step output 13, a monostable multivibrator circuit 6 is operated with the output to generate an output signal 14 with the pulse width accurately set to the optical input signal pulse width.

9. 发明专利

JPS5790609A OPTICAL FIBER END PART AND ITS MANUFACTURE 失效
公开(公告)号：JPS5790609A
公开(公告)日：1982-06-05
申请号：JP16670280
申请日：1980-11-28
申请人： HITACHI LTD
发明人： SATOU HIDEMI , KANEDA AIZOU , YOKONO ATARU , OOHASHI TOKUYOSHI , MIYAKE KIYOHIDE , KODAMA TOSHIROU , SUZUKI KIICHI
IPC分类号： G02B6/36 , G02B6/38
摘要： PURPOSE:To obtain an optical connector which has low connection loss with high precision by a concentric stepped projection part in the tip of the reference surface of the cylindrical body of the opticl connector. CONSTITUTION:An optical fiber end member 5 has a main cylindrical part 5B and a subordinate cylindrical part 5C while the subordinate cylindrical part 5C is provided at one end part of the main cylindrical part 5B, and the centers of both the subordinate and main cylindrical parts 5B and 5C are coincident with each other. Three spherical bodies 7 are arranged as masters in the inside of the subordinate cylindrical part 5C, and those three spherical bodies form an ampty space, into which an optical fiber wire can be inserted, around the center point of the cylindrical part 5C. In this space, the optical fiber winding is inserted and positioned and a curing material 9 is sealed from an opening part 5A and molded, thus obtaining a precise optical connector body.

10. 发明专利

JPS549946A OPTICAL BRANCHING FILTER 失效
公开(公告)号：JPS549946A
公开(公告)日：1979-01-25
申请号：JP7445877
申请日：1977-06-24
申请人： HITACHI LTD
发明人： FUJITA HIROYUKI , MIYAKE KIYOHIDE , YAMAGUCHI KOUJI
IPC分类号： H04B10/29 , G02B6/28 , G02B27/10 , H04B10/00 , H04B10/2507 , H04B10/27
摘要： PURPOSE:To enable optical branching to be performed with less insertion loss by interposing a thin film of a beam splitterlike function in such a manner as not to intersect perpendicularly with the axial direction in the core of a fiber.

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