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81. 发明授权

US07021840B2 Optical receiver and method of manufacturing the same 失效
公开(公告)号：US07021840B2
公开(公告)日：2006-04-04
申请号：US10438633
申请日：2003-05-15
申请人： Yoshiki Kuhara , Hiromi Nakanishi , Mitsuaki Nishie
发明人： Yoshiki Kuhara , Hiromi Nakanishi , Mitsuaki Nishie
IPC分类号： G02B6/42
CPC分类号： G02B6/4204 , G02B6/4201 , G02B6/4214 , H01L2224/05554 , H01L2224/45144 , H01L2224/48091 , H01L2224/48137 , H01L2224/73265 , H01L2924/30107 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： An optical receiver comprises a PD for receiving an incident light from an optical fiber, a preamplifier IC for amplifying an electrical signal from the PD, a submount on which the PD and the preamplifier IC are mounted on the same plane, and a package on which the submount is mounted. The PD and the preamplifier IC are directly connected to each other by a wire, and these components are both mounted on the same submount. Therefore, the distance between the PD and the preamplifier IC can be reduced, and parasitic inductance, parasitic capacitance, etc. can be greatly reduced. As a result, an optical receiver is provided which has reduced parasitic inductance and parasitic capacitance, and which is optimum for high speed response.

82. 发明申请

US20050285123A1 Photodiode array and optical receiver device including the same 有权
公开(公告)号：US20050285123A1
公开(公告)日：2005-12-29
申请号：US11207449
申请日：2005-08-18
申请人： Akira Yamaguchi , Yoshiki Kuhara
发明人： Akira Yamaguchi , Yoshiki Kuhara
IPC分类号： H01L27/146 , H01L27/144 , H01L27/15 , H01L29/18 , H01L31/10 , H01L31/105 , H01L31/12
CPC分类号： H01L31/105 , H01L27/1446 , H01L31/12
摘要： Disclosed is a photodiode array which includes a plurality of p-i-n photodiodes arrayed on a semi-insulative semiconductor substrate, each photodiode including an n-type semiconductor layer grown on the substrate, an i-type semiconductor layer grown on the n-type semiconductor layer, a p-type semiconductor layer grown on the i-type semiconductor layer, an n-type electrode provided on the n-type semiconductor layer in a region exposed by partially removing the p-type semiconductor layer and the i-type semiconductor layer, and a p-type electrode provided on the p-type semiconductor layer. A trench is provided between the two adjacent photodiodes by partially removing the p-type semiconductor layer, the i-type semiconductor layer, and the n-type semiconductor layer. Consequently, the size and pitch of the photodiodes can be decreased and crosstalk between the photodiodes can be reduced. Also disclosed is an optical receiver device including the photodiode array.

83. 发明申请

US20050133695A1 Photodetector and optical receiver 有权
标题翻译：光电检测器和光接收器
公开(公告)号：US20050133695A1
公开(公告)日：2005-06-23
申请号：US11006192
申请日：2004-12-07
申请人： Yoshiki Kuhara , Mitsuaki Nishie , Shigeo Hayashi
发明人： Yoshiki Kuhara , Mitsuaki Nishie , Shigeo Hayashi
IPC分类号： H01L31/107 , H01J40/14 , H01L31/10 , H03F3/08 , H04B10/07 , H04B10/40 , H04B10/50 , H04B10/60
CPC分类号： H04B10/691 , H03F3/087
摘要： An optical receiver is provided with an optical-signal-receiving section and a controlling section. The optical-signal-receiving section incorporates a photodetector. The photodetector has an APD. Through a passivation film, a photoconductor is placed on a portion of a surface of the APD which remains unoccupied by an optical-signal-receiving area of the APD. When this structure is employed, the signal for controlling the avalanche multiplication factor of the APD can be obtained from the photoconductor. Consequently, the signal can be obtained with a simple structure. Furthermore, the photoconductor has a good linearity of the output current even to a weak lightwave. As a result, the output current I for controlling the avalanche multiplication factor of the APD can be obtained with high accuracy.
摘要翻译：光接收器设置有光信号接收部分和控制部分。光信号接收部分包括光电检测器。光电检测器具有APD。通过钝化膜，光电导体被放置在APD的表面的由APD的光信号接收区域保持未被占据的部分上。当采用这种结构时，可以从光电导体获得用于控制APD的雪崩倍增因子的信号。因此，可以以简单的结构获得信号。此外，光电导体即使对于弱光也具有良好的输出电流线性。结果，可以高精度地获得用于控制APD的雪崩倍增因子的输出电流I。

84. 发明申请

US20050110105A1 Optical module and an optical receiver using the same 有权
标题翻译：光模块和使用其的光接收机
公开(公告)号：US20050110105A1
公开(公告)日：2005-05-26
申请号：US10971644
申请日：2004-10-21
申请人： Yoshiki Kuhara , Mitsuaki Nishie , Shigeo Hayashi
发明人： Yoshiki Kuhara , Mitsuaki Nishie , Shigeo Hayashi
IPC分类号： H01L21/00 , H01L31/0232
CPC分类号： G02B6/4204 , G02B6/4266 , G02B6/4274 , H01L25/043 , H01L2224/48091 , H01L2224/73265 , H01L2924/00014
摘要： The present invention provides an optical receiver that uses an avalanche photodiode (APD) whose multiplication factor m is controlled to compensate the temperature dependence thereof. An optical module of the present invention includes a light-receiving device in addition to the APD. The light-receiving device may be a semiconductor thin film or a PIN photodiode, and is disposed in front of the APD. Accordingly, the light-receiving device receives a portion of signal light, and transmits a rest portion thereof. The APD receives the rest portion of the signal light. The bias voltage applied to the APD is so controlled that a first photocurrent generated in the light-receiving device and a second photocurrent generated in the APD maintain a constant ratio.
摘要翻译：本发明提供一种使用其倍增因子m被控制以补偿其温度依赖性的雪崩光电二极管（APD）的光接收器。本发明的光模块除了APD之外还包括光接收装置。光接收装置可以是半导体薄膜或PIN光电二极管，并且设置在APD的前面。因此，光接收装置接收信号光的一部分，并发送其余部分。 APD接收信号灯的其余部分。施加到APD的偏置电压被控制为使得在光接收装置中产生的第一光电流和在APD中产生的第二光电流保持恒定的比率。

85. 发明授权

US06873767B2 Wavelength-multiplexing connector, optical transmission device, and optical communication system 失效
标题翻译：波长复用连接器，光传输设备和光通信系统
公开(公告)号：US06873767B2
公开(公告)日：2005-03-29
申请号：US10348475
申请日：2003-01-21
申请人： Yoshiki Kuhara
发明人： Yoshiki Kuhara
IPC分类号： G02B6/36 , G02B6/293 , G02B6/34 , G02B6/42 , H01L31/0232 , H01S5/022 , H04B10/00 , H04B10/25 , H04J14/00 , H04J14/02 , G02B6/30
CPC分类号： G02B6/12007 , G02B6/29352 , G02B6/4246
摘要： A wavelength-multiplexing connector and a transmitting/receiving part can be easily connected to and disconnected from each other. The wavelength-multiplexing connector comprises a single optical fiber, through which a plurality of optical signals having different wavelengths are transmitted, and a wavelength-multiplexer optically coupled to the optical fiber and capable of optically separating an optical signal having a particular wavelength out of the plurality of optical signals. The wavelength-multiplexer comprises a wavelength division multiplexing filter disposed at a midway of a first light waveguide, and a multilayered film mirror for reflecting, at a midway of a second light waveguide, a signal separated by the wavelength division multiplexing filter.
摘要翻译：波长复用连接器和发送/接收部分可以容易地彼此连接和断开。波长复用连接器包括单个光纤，通过该单个光纤传输具有不同波长的多个光信号，以及光纤耦合到光纤的波长多路复用器，并且能够将具有特定波长的光信号从多个光信号。波长多路复用器包括设置在第一光波导中途的波分复用滤波器和用于在第二光波导的中途反射由波分复用滤波器分离的信号的多层膜镜。

86. 发明授权

US06655856B2 Optical module 有权
标题翻译：光模块
公开(公告)号：US06655856B2
公开(公告)日：2003-12-02
申请号：US09812693
申请日：2001-03-21
申请人： Hiromi Nakanishi , Takeshi Okada , Yoshiki Kuhara
发明人： Hiromi Nakanishi , Takeshi Okada , Yoshiki Kuhara
IPC分类号： G02B642
CPC分类号： G02B6/4239 , G02B6/30 , G02B6/4212 , G02B6/4243 , G02B6/4253 , G02B6/4257 , G02B6/4265 , H01L2224/45144 , H01L2224/48091 , H01L2924/00014
摘要： The object is to provide an optical module for optical transmission which has a double resin structure wherein a transparent resin and a fixing resin are combined, which is low in price, and is easily produced. A package with a inside-and-outside double structure comprising an inner container having barriers filled with a transparent resin and a hard outer container formed of a fixing resin. The inner container stores the highly fluid transparent resin and prevents it from flowing out. The outer container provides mechanical strength and airtightness.
摘要翻译：本发明的目的是提供一种具有双重树脂结构的光学传输用光学组件，其中组合透明树脂和固定树脂，价格低廉，易于生产。一种具有内外双重结构的包装体，其包括填充有透明树脂的屏障的内部容器和由固定树脂形成的硬质外部容器。内容器储存高流动性的透明树脂并防止其流出。外容器提供机械强度和气密性。

87. 发明授权

US06558048B2 LD module 有权
标题翻译： LD模块
公开(公告)号：US06558048B2
公开(公告)日：2003-05-06
申请号：US09826875
申请日：2001-04-06
申请人： Yoshiki Kuhara , Hiromi Nakanishi , Manabu Yoshimura
发明人： Yoshiki Kuhara , Hiromi Nakanishi , Manabu Yoshimura
IPC分类号： G02B642
CPC分类号： G02B6/4206 , G02B6/4292 , G02B2006/12195 , H01S5/02212 , H01S5/02284 , H01S5/1014
摘要： An LD module having a spot-size conversion LD for emitting a beam of a small aperture angle, an optical fiber or a waveguide and a lens for converging the LD beam to the fiber or the waveguide.
摘要翻译：具有用于发射小孔径光束的光点尺寸转换LD，光纤或波导的LD模块和用于将LD光束会聚到光纤或波导的透镜。

88. 发明授权

US06530698B1 Optical device 有权
标题翻译：光学装置
公开(公告)号：US06530698B1
公开(公告)日：2003-03-11
申请号：US09612232
申请日：2000-07-07
申请人： Yoshiki Kuhara , Hiromi Nakanishi , Takeshi Okada
发明人： Yoshiki Kuhara , Hiromi Nakanishi , Takeshi Okada
IPC分类号： G02B600
CPC分类号： G02B6/4249 , G02B6/29361 , G02B6/42 , G02B6/4207 , G02B6/421 , G02B6/4212 , G02B6/4214 , G02B6/4215 , G02B6/4243 , G02B6/4253 , G02B6/4255 , G02B6/4265
摘要： A device including a fiber/waveguide and a optical device (PD, LD or so). The end of an optical fiber or a light waveguide is cut slantingly. A transparent resin of a refractive index akin to the fiber/waveguide encloses the fiber/waveguide, the optical device and a space between them. The slanting end cutting and the transparent resin cooperate with each other to annihilate the reflection, returning light perfectly without reducing the coupling coefficient.
摘要翻译：包括光纤/波导和光学装置（PD，LD等）的装置。光纤或光波导的端部倾斜地切割。折射率类似于光纤/波导的透明树脂包围光纤/波导，光学器件和它们之间的空间。倾斜端切割和透明树脂相互配合以消除反射，完美地返回光而不降低耦合系数。

89. 发明授权

US06513993B1 Optical communications device 有权
标题翻译：光通信设备
公开(公告)号：US06513993B1
公开(公告)日：2003-02-04
申请号：US09856899
申请日：2001-05-29
申请人： Hiromi Nakanishi , Yoshiki Kuhara
发明人： Hiromi Nakanishi , Yoshiki Kuhara
IPC分类号： G02B636
CPC分类号： G02B6/4246 , G02B6/3652 , G02B6/3696 , G02B6/4201 , G02B6/423 , G02B6/4236 , G02B6/4239 , G02B6/4243 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2924/10253 , H01L2924/00014 , H01L2924/00
摘要： The invention reduces the costs of a surface mounting type receiver module, transmitter module, and transmitter and receiver module. In an optical communication device comprising an optical fiber, optical parts, and a substrate for optical coupling, the coupling portion between the end portion of the optical fiber and the optical parts is fixed by a semiconductor substrate having a V groove made by etching, and a portion of the optical fiber other than the end portion is fixed by a retaining substrate which is different from the semiconductor substrate.
摘要翻译：本发明降低了表面安装型接收器模块，发射器模块和发射器和接收器模块的成本。在包括光纤，光学部件和用于光学耦合的基板的光学通信设备中，耦合部分光纤和光学部件由具有通过蚀刻形成的V槽的半导体基板固定，并且除端部之外的光纤的一部分由与半导体基板不同的保持基板固定。

90. 发明授权

US06374021B1 Light transmitting/receiving module 有权
标题翻译：光发射/接收模块
公开(公告)号：US06374021B1
公开(公告)日：2002-04-16
申请号：US09503449
申请日：2000-02-14
申请人： Hiromi Nakanishi , Yoshiki Kuhara
发明人： Hiromi Nakanishi , Yoshiki Kuhara
IPC分类号： G02B630
CPC分类号： G02B6/4246 , G02B6/29361
摘要： The PD/LD module of the present invention comprises a platform, a straight light guide (waveguide) formed on the platform for guiding transmitting light and receiving light, a light source (LD or LED) positioned at an end of the light guide for emitting transmitting light, a PD mounted just above the light guide for detecting receiving signals and a filter sloping upward on the way of the light guide for reflecting receiving light to the photodiode (PD) and passing transmitting light.
摘要翻译：本发明的PD / LD模块包括平台，形成在平台上的用于引导传输光和接收光的平直光导（波导），位于光导的端部处的发光（LD或LED），用于发射传输光，刚刚在光导上方安装的用于检测接收信号的PD，以及在光导路径上向上倾斜的滤光器，用于将接收光反射到光电二极管（PD）并通过透射光。

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