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71. 发明专利

JPH0537081A SEMICONDUCTOR STRUCTURE AND SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPH0537081A
公开(公告)日：1993-02-12
申请号：JP1533091
申请日：1991-02-06
申请人： HITACHI LTD
发明人： TSUCHIYA TOMONOBU , AOKI MASAHIRO , SUZUKI MAKOTO , UOMI KAZUHISA , KAYANE NAOKI
IPC分类号： H01L33/06 , H01L33/14 , H01L33/30 , H01L33/34 , H01L33/36 , H01S5/00
摘要： PURPOSE:To obtain a semiconductor structure where the strain quantity and a thin film of a strain layer are controlled independently by a method wherein a matching layer provided between a substrate and at least two strain layers different in lattice constant has a band gap energy equal to that of the strain layer and makes lattice match with the substrate. CONSTITUTION:Strain layers 1 of a critical film thickness or less and a matching layer 2 which makes lattice match with a substrate are provided alternately to constitute a strain well layer 4'. In this way, the strain layer is divided by the matching layer to increase the strain quantity added in the strain well layer. An alternate way is to make the strain layer of a quarternary crystal, the matching layer of a binary or ternary crystal, or both of a quarternary crystal, resulting in a change in its mixed crystal ratio. Thus, the band gap energy in the strain well layer is made equal to that of the strain layer 1 at the matching layer 2 to change only the strain quantity. This process can provide a semiconductor structure where the stain quantity and the film thickness of a strain layer are controlled independently.

72. 发明专利

JPS63121431A MAXIMUM DEMAND POWER REGULATOR 失效
公开(公告)号：JPS63121431A
公开(公告)日：1988-05-25
申请号：JP26381286
申请日：1986-11-07
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KAMIYAMA KATSUMI , AOKI MASAHIRO
IPC分类号： H02J3/00

73. 发明专利

JP2010251649A Surface emitting laser module and surface light receiving module 审中-公开
标题翻译：表面发射激光模块和表面光接收模块
公开(公告)号：JP2010251649A
公开(公告)日：2010-11-04
申请号：JP2009101963
申请日：2009-04-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ADACHI KOICHIRO , MATSUOKA YASUNOBU , SUGAWARA TOSHIKI , AOKI MASAHIRO
IPC分类号： H01S5/022 , H01L31/0232 , H01L31/10 , H01S5/026 , H01S5/18 , H01S5/183
CPC分类号： H01S5/18 , G02B6/322 , G02B6/4214 , G02B6/423 , H01S5/0207 , H01S5/02212 , H01S5/02284 , H01S5/0267 , H01S5/12 , H01S5/18311
摘要： PROBLEM TO BE SOLVED: To provide a compact optical module of high optical coupling efficiency and of high density packaging.
SOLUTION: In the optical module, a light emitting element that emits light in a perpendicular direction to a principal surface of a semiconductor substrate 11, is provided with: a lens 19 integrated into a light emitting region; and a retaining section 22 integrated to surround the light emitting region. Accordingly, simplicity in alignment of the light emitting element and an optical fiber 31, which guides light emitted from the light emitting element, with each other in the horizontal and vertical direction is improved. As a result, the compact optical module of high optical coupling efficiency and of high density packaging is provided.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有高光耦合效率和高密度封装的紧凑型光学模块。解决方案：在光学模块中，在与半导体基板11的主表面垂直的方向上发光的发光元件设置有：集成到发光区域中的透镜19; 以及保持部分22，其整合以围绕发光区域。因此，提高了在水平和垂直方向上引导从发光元件发射的光的发光元件和光纤31的对准的简单性。结果，提供了高光耦合效率和高密度封装的紧凑型光学模块。版权所有（C）2011，JPO＆INPIT

74. 发明专利

JP2010225824A OPTICAL MODULE AND WAVELENGTH MULTIPLEX OPTICAL MODULE 审中-公开
公开(公告)号：JP2010225824A
公开(公告)日：2010-10-07
申请号：JP2009071139
申请日：2009-03-24
申请人： HITACHI LTD
发明人： SUGAWARA TOSHIKI , HOSOMI KAZUHIKO , MATSUOKA YASUNOBU , SAKA TAKUMA , ADACHI KOICHIRO , RI EIKON , AOKI MASAHIRO
IPC分类号： H01S5/022 , H01L31/10
摘要： PROBLEM TO BE SOLVED: To achieve improvement in reliability of an optical module (reliability on sealing at a sealing substrate recessed portion), having an optical element mounting substrate (second substrate) covered with a sealing substrate (first substrate) having a sealing function and a guide function of an optical fiber, and simplification of manufacturing steps (improvement in mass-productivity by a large-sized substrate and facilitation of a durability test after sealing). SOLUTION: The optical module is structured by sticking together the optical element mounting substrate which has an optical element mounted on a top surface and guides an electric signal through a through via hole, and the sealing substrate which has a lens on a reverse surface side and has a non-through recessed portion for fiber holding on a top surface side. COPYRIGHT: (C)2011,JPO&INPIT

75. 发明专利

JP2009246390A Semiconductor laser device 审中-公开
标题翻译：半导体激光器件
公开(公告)号：JP2009246390A
公开(公告)日：2009-10-22
申请号：JP2009173844
申请日：2009-07-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AOKI MASAHIRO
IPC分类号： H01S5/026 , H01S5/125
摘要： PROBLEM TO BE SOLVED: To provide an element structure which realizes a wavelength tunable laser having high output power and excellent wavelength stability, an optical module structure using the same, and a method of manufacturing the same.
SOLUTION: The wavelength of the light emitted from a semiconductor laser can be varied continuously within a wavelength tunable range by a single electrical signal by respectively setting the length of a laser resonator, electrical driving condition of the laser in varying the wavelength, and operating temperature, to appropriate ranges. In addition, the element structure achieves increase of the laser gain and reduction of electrical resistance and thermal resistance by setting, in particular, in a partial or whole portion of the laser resonator waveguide, the lateral width of the waveguide to a wide value that tolerates multiple transverse modes, and setting the width and the laser resonator length to appropriate values. On this occasion, by using a self-image forming effect obtained by a multi-mode interference effect, the mode conversion loss in the laser resonator can be reduced, and the light intensity distribution at the emitting end of the laser becomes a single-peak lowest-order mode, giving a favorable structure for connecting to an optical fiber or the like.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供实现具有高输出功率和优异波长稳定性的波长可调激光器的元件结构，使用其的光学模块结构及其制造方法。解决方案：通过分别设置激光谐振器的长度，激光器的变化波长的电驱动条件，可以通过单个电信号在波长可调范围内连续地改变从半导体激光器发射的光的波长，和工作温度，适用范围。此外，元件结构通过将激光谐振器波导的部分或全部部分设置，波导的横向宽度容许宽的值，实现激光增益的增加和电阻和热阻的降低多个横向模式，并将宽度和激光谐振器长度设置为适当的值。在这种情况下，通过使用通过多模式干涉效应获得的自图像形成效果，可以降低激光谐振器中的模式转换损耗，并且激光发射端的光强度分布变为单峰最低阶模式，提供连接到光纤等的有利结构。版权所有（C）2010，JPO＆INPIT

76. 发明专利

JP2009177058A Semiconductor laser device 审中-公开
标题翻译：半导体激光器件
公开(公告)号：JP2009177058A
公开(公告)日：2009-08-06
申请号：JP2008016164
申请日：2008-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUKA SHINICHI , SHIMIZU JUNICHIRO , SHIODA TAKASHI , AOKI MASAHIRO
IPC分类号： H01S5/187 , H01S5/12 , H01S5/18
摘要： PROBLEM TO BE SOLVED: To enable short-wavelength visible light semiconductor lasers to be contact-mounted in a downward posture assembly being arranged two-dimensionally, the each semiconductor laser attaining a high output owing to the horizontal direction in which the light progresses in an optical waveguide thereof and having a structure integrated with inclined surfaces.
SOLUTION: Disclosed is a semiconductor element which includes a semiconductor light emitting element formed of thin film crystal provided on one main surface of a semiconductor substrate and having a function of emitting light in a semiconductor substrate direction perpendicular to the one main surface and a hole portion formed by leaving the semiconductor substrate to a thickness sufficient to allow light to reach or pass through the thin film crystal from the other main surface to the one main surface of the semiconductor substrate, and emits light from the hole portion, wherein a constitution portion which does not require electric supply to the light emitting element is formed on a substrate surface opposed to the hole portion.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了使短波长可见光半导体激光器以二维方式布置在向下姿势组件中接触安装，由于水平方向，每个半导体激光器由于水平方向而达到高输出，其中光在其光波导中进行并且具有与倾斜表面一体化的结构。解决方案：公开了一种半导体元件，其包括由设置在半导体衬底的一个主表面上的薄膜晶体形成的半导体发光元件，并且具有在垂直于该一个主表面的半导体衬底方向上发光的功能;以及通过将半导体衬底留下足以允许光从另一个主表面到半导体衬底的一个主表面到达或通过薄膜晶体的厚度形成的孔部分，并且从孔部分发射光，其中在与孔部相对的基板表面上形成有不需要向发光元件供电的构成部。版权所有（C）2009，JPO＆INPIT

77. 发明专利

JP2009105106A Optical transmitter/receiver module 审中-公开
标题翻译：光发射机/接收机模块
公开(公告)号：JP2009105106A
公开(公告)日：2009-05-14
申请号：JP2007273302
申请日：2007-10-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HOSOMI KAZUHIKO , SAGAWA MISUZU , SUGAWARA TOSHIKI , AOKI MASAHIRO
IPC分类号： H01S5/022 , H01L31/0232 , H01S5/40
CPC分类号： G02B6/4215 , G02B6/29367 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To provide an optical transmitter/receiver module which greatly decrease the number of components of a system and the mounting man-hours and is compact and high in yield for application fields of projectors, optical transmission communications, information equipment, biological measurements, etc.
SOLUTION: An optical element mounting substrate 1 where a plurality of light emitting elements have been mounted on the same plane, a lens array 9 for collimating a plurality of light emitted from the plurality of light emitting elements, and a wavelength multiplexing/demultiplexing device 2 are prepared. The wavelength multiplexing/demultiplexing device has typically mounted both a wavelength selecting filter and a mirror on front and rear planes of a transparent substrate. These three components are mounted within a package 3 at a desirable angle position. Optical axes of respective wavelengths of the wavelength multiplexing/demultiplexing device 2 are determined based upon a thickness and an angle of the substrate, and are arrayed on a straight line of a horizontal plane. As a consequence, if the respective light emitting elements are arranged on the optical axes which are exclusively determined by a design work, then optical multiplexing/demultiplexing operations can be carried out. In the present invention, a plurality of filters are automatically aligned only by aligning a glass substrate once and mounting processes can be greatly simplified while high precision is maintained.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种光发射机/接收机模块，其大大减少了系统的部件数量和安装工时，并且在投影机，光传输通信，信息的应用领域中的小型化和高产量设备，生物测量等。解决方案：将多个发光元件安装在同一平面上的光学元件安装基板1，用于准直多个发光元件的多个发光的透镜阵列9 元件和波长复用/解复用器件2。波长复用/解复用装置通常在透明基板的前面和后面平面上安装波长选择滤光器和反射镜。这三个部件以期望的角度位置安装在包装3内。基于衬底的厚度和角度确定波长多路复用/解复用装置2的各个波长的光轴，并排列在水平面的直线上。结果，如果各个发光元件被布置在专门由设计工作确定的光轴上，则可以执行光复用/解复用操作。在本发明中，多个滤光器仅通过对准玻璃基板而自动对准一次，并且可以极大地简化安装工艺，同时保持高精度。版权所有（C）2009，JPO＆INPIT

78. 发明专利

JP2008286961A Optical multiplexer/demultiplexer 有权
标题翻译：光学多路复用器/解复用器
公开(公告)号：JP2008286961A
公开(公告)日：2008-11-27
申请号：JP2007131204
申请日：2007-05-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI MAKOTO , MATSUOKA YASUNOBU , AOKI MASAHIRO
IPC分类号： G02B6/293 , G02B5/28 , G02B6/26
CPC分类号： G02B6/29365 , G02B6/29367 , G02B6/2938 , G02B6/42 , G02B6/4246
摘要： PROBLEM TO BE SOLVED: To provide a structure in which an optical multiplexer/demultiplexer used for a multiple-wavelength transmission which transmits a plurality of wavelengths in an optical fiber and a single core bidirectional optical transmission is made compact, the number of components are reduced, and mounting and manufacturing processes are simplified. SOLUTION: The optical mutiplexer/demultiplexer has Si substrates 11 and 12 facing each other, and the Si substrates 11 and 12 have tilted faces 301 and 302 and a cavity part in their insides. A reflection film 31 is provided to the tilt face 302 and wavelength selection filters 21, 22 and 23 are provided to the tilt face 301. The reflection film 31 and the wavelength selection filters 21, 22 and 23 face each other, and the refractive index of the Si substrates 11 and 12 and the refractive index in the cavity part are different from each other. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种结构，其中用于在光纤和单核双向光传输中发送多个波长的多波长传输的光复用器/解复用器被紧凑化，组件被减少，并且安装和制造过程被简化。光复用器/解复用器具有彼此面对的Si衬底11和12，并且Si衬底11和12在其内部具有倾斜面301和302以及空腔部分。反射膜31设置在倾斜面302上，并且波长选择滤光器21,22和23设置在倾斜面301上。反射膜31和波长选择滤光器21,22和23彼此面对，折射率的Si衬底11和12，并且腔体部分中的折射率彼此不同。版权所有（C）2009，JPO＆INPIT

79. 发明专利

JP2004287116A Optical transmitter 有权
公开(公告)号：JP2004287116A
公开(公告)日：2004-10-14
申请号：JP2003079343
申请日：2003-03-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AOKI MASAHIRO
IPC分类号： G02B6/12 , G02F1/017
摘要： PROBLEM TO BE SOLVED: To provide a device structure of a semiconductor lumped constant type MZ modulator and a method for electrically and optically mounting the same, and to provide an optical module which has the optical elements installed thereon and which is inexpensive and operates with high performance. SOLUTION: The multiplex-demultiplexer of the MZ modulator is constructed as a double pass structure which uses a multimode interference waveguide with a 2×2 structure input/output waveguide. Thereby, positional separation of input/output light and the performance index doubling of the modulator based on the double pass structure are simultaneously attained. Also, by combining the double pass MZ modulator and a modulator driver IC with a regular and auxiliary differential output pair and symmetrically arranging the output stage of the driver IC and the driving electrode of the MZ modulator, a mounting structure and a mounting method most suitable for push-pull driving is obtained with an easy method. Furthermore, by using paired optical components where optical components used for input/output of light signals such as a condensing optical lens, an optical isolator and an optical fiber to guide light to the outside are connected in series, a mounting structure and a mounting method to optically mount the optical modulator with ease are obtained. COPYRIGHT: (C)2005,JPO&NCIPI

80. 发明专利

JP2004235182A Semiconductor optical element and optical transmitter/receiver using it 有权
公开(公告)号：JP2004235182A
公开(公告)日：2004-08-19
申请号：JP2003018257
申请日：2003-01-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKAWA TAKESHI , AOKI MASAHIRO
IPC分类号： G02F1/015 , H01L31/10 , H01S5/026 , H01S5/187
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor optical element by which an optical guide can be formed in a length proper to a high-speed optical transmission and which can be integrated in a monolithic manner, and to provide an optical transmitter/receiver using it. SOLUTION: The semiconductor optical element has a reflector 7 composed of at least two kinds of semiconductor layers having different refractive indices formed on a semiconductor substrate 1, the optical guide 2 held by a lower clad layer 3 and an upper clad layer 4 formed on the reflector 7, a reflecting mirror 5 arranged on at least one end face of the optical guide 2 at an angle of 45° to the surface of the substrate 1 and an antireflection film 6 formed on the rear of the substrate 1 at a position opposed to the reflecting mirror 5. COPYRIGHT: (C)2004,JPO&NCIPI

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