公开(公告)号：US06264377B1

公开(公告)日：2001-07-24

申请号：US09261960

申请日：1999-03-03

申请人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

IPC分类号： G02B636

CPC分类号： G02B6/4246

摘要： EA bidirectional optical semiconductor apparatus of the present invention includes: a substrate embedding an optical waveguide, through which output light and input light are propagated; a semiconductor light-emitting device for emitting the output light toward one end of the optical waveguide; an optical branching filter, provided in the optical waveguide, for transmitting at least part of the output light and guiding at least part of the input light to the outside of the optical waveguide; a semiconductor light-receiving device, provided over the substrate, for receiving the input light guided by the optical branching filter to the outside of the optical waveguide; and a light-blocking member, formed on the surface of the semiconductor light-receiving device, for blocking the light emitted from the semiconductor light-emitting device.

摘要翻译： 本发明的EA双向光学半导体装置包括：嵌入光波导的基板，输出光和输入光通过该光波导传播; 用于向所述光波导的一端发射所述输出光的半导体发光装置; 设置在光波导中的光分路滤波器，用于传输至少部分输出光并将至少部分输入光引导到光波导的外部; 半导体光接收装置，设置在所述基板上，用于将由所述光分路滤波器引导的输入光接收到所述光波导的外部; 以及形成在半导体光接收装置的表面上的用于阻挡从半导体发光器件发射的光的遮光部件。

公开(公告)号：US06350064B2

公开(公告)日：2002-02-26

申请号：US09886973

申请日：2001-06-25

申请人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

IPC分类号： G02B636

CPC分类号： G02B6/4246

摘要： A bidirectional optical semiconductor apparatus of the present invention includes: a substrate embedding an optical waveguide, through which output light and input light are propagated; a semiconductor light-emitting device for emitting the output light toward one end of the optical waveguide; an optical branching filter, provided in the optical waveguide, for transmitting at least part of the output light and guiding at least part of the input light to the outside of the optical waveguide; a semiconductor light-receiving device, provided over the substrate, for receiving the input light guided by the optical branching filter to the outside of the optical waveguide; and a light-blocking member, formed on the surface of the semiconductor light-receiving device, for blocking the light emitted from the semiconductor light-emitting device.

摘要翻译： 本发明的双向光学半导体装置包括：嵌入光波导的基板，输出光和输入光通过该波导传播; 用于向所述光波导的一端发射所述输出光的半导体发光装置; 设置在光波导中的光分路滤波器，用于传输至少部分输出光并将至少部分输入光引导到光波导的外部; 半导体光接收装置，设置在所述基板上，用于将由所述光分路滤波器引导的输入光接收到所述光波导的外部; 以及形成在半导体光接收装置的表面上的用于阻挡从半导体发光器件发射的光的遮光部件。

公开(公告)号：US06517257B2

公开(公告)日：2003-02-11

申请号：US09985751

申请日：2001-11-06

申请人： Tohru Nishikawa ,  Tomoaki Uno ,  Genji Tohmon ,  Masahiro Mitsuda

发明人： Tohru Nishikawa ,  Tomoaki Uno ,  Genji Tohmon ,  Masahiro Mitsuda

IPC分类号： G02B636

CPC分类号： G02B6/4246 ,  G02B6/4224

摘要： The optical transmitter/receiver apparatus of the invention includes: an optical fiber for transmitting/receiving an optical signal therethrough; and a first base including mutually spaced optical signal transmitting and receiving regions and a fiber end supporting region located between the optical signal transmitting and receiving regions. A semiconductor laser device for emitting the optical signal to be transmitted is secured to the optical signal transmitting region of the first base. A fiber end supporting portion for supporting one end of the optical fiber, to which the optical signal emitted from the semiconductor laser device is incident, is formed in the fiber end supporting region of the first base. A second base for supporting the body of the optical fiber is secured to the optical signal receiving region of the first base. A reflective filter for transmitting the optical signal to be transmitted, emitted from the semiconductor laser device, and for reflecting the optical signal to be received, incident through the other end of the optical fiber, is supported by being inserted into the second base and the body of the optical fiber. A light-receiving device for receiving the optical signal to be received, reflected by the reflective filter, is secured to the second base.

公开(公告)号：US06547451B1

公开(公告)日：2003-04-15

申请号：US09457554

申请日：1999-12-09

申请人： Tohru Nishikawa ,  Tomoaki Uno ,  Masahiro Mitsuda ,  Yasuhiro Kobayashi

发明人： Tohru Nishikawa ,  Tomoaki Uno ,  Masahiro Mitsuda ,  Yasuhiro Kobayashi

IPC分类号： G02B636

CPC分类号： G02B6/4246 ,  G02B6/4214 ,  G02B6/4224 ,  G02B6/424 ,  G02B6/4286

摘要： An optical communications Module for use in an optical transfer system for bidirectionally transferring a light signal through an optical fiber, the optical communications module having a light signal transmission capability, wherein the optical communications module includes: a semiconductor laser; an optical fiber coupled to a front facet of the semiconductor laser; a light splitting element for splitting light which is emitted from the front facet of the semiconductor laser and propagated within the optical fiber; and, an output-monitoring photodiode for receiving a portion of the light which has been split by the light splitting element as monitoring light, and generating a photocurrent based on the monitoring light, the photocurrent being used for controlling optical output of the semiconductor laser.

摘要翻译： 一种光通信模块，用于通过光纤双向传输光信号的光传输系统，所述光通信模块具有光信号传输能力，其中所述光通信模块包括：半导体激光器; 耦合到所述半导体激光器的前端面的光纤; 分光元件，用于分离从所述半导体激光器的前刻面发射并在所述光纤内传播的光; 以及输出监视光电二极管，用于接收由所述分光元件分离的光的一部分作为监控光，并且基于所述监视光产生光电流，所述光电流用于控制所述半导体激光器的光输出。

公开(公告)号：US06515307B2

公开(公告)日：2003-02-04

申请号：US09731012

申请日：2000-12-07

申请人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

IPC分类号： H01L3300

CPC分类号： G02B6/4246

摘要： A bidirectional optical semiconductor apparatus of the present invention includes: a substrate embedding an optical waveguide, through which output light and input light are propagated; a semiconductor light-emitting device for emitting the output light toward one end of the optical waveguide; an optical branching filter, provided in the optical waveguide, for transmitting at least part of the output light and guiding at least part of the input light to the outside of the optical waveguide; a semiconductor light-receiving device, provided over the substrate, for receiving the input light guided by the optical branching filter to the outside of the optical waveguide; and a light-blocking member, formed on the surface of the semiconductor light-receiving device, for blocking the light emitted from the semiconductor light-emitting device.

公开(公告)号：US06332719B1

公开(公告)日：2001-12-25

申请号：US09129872

申请日：1998-08-06

申请人： Tohru Nishikawa ,  Tomoaki Uno ,  Genji Tohmon ,  Masahiro Mitsuda

发明人： Tohru Nishikawa ,  Tomoaki Uno ,  Genji Tohmon ,  Masahiro Mitsuda

IPC分类号： G02B636

CPC分类号： G02B6/4246 ,  G02B6/4224

摘要： The optical transmitter/receiver apparatus of the invention includes: an optical fiber for transmitting/receiving an optical signal therethrough; and a first base including mutually spaced optical signal transmitting and receiving regions and a fiber end supporting region located between the optical signal transmitting and receiving regions. A semiconductor laser device for emitting the optical signal to be transmitted is secured to the optical signal transmitting region of the first base. A fiber end supporting portion for supporting one end of the optical fiber, to which the optical signal emitted from the semiconductor laser device is incident, is formed in the fiber end supporting region of the first base. A second base for supporting the body of the optical fiber is secured to the optical signal receiving region of the first base. A reflective filter for transmitting the optical signal to be transmitted, emitted from the semiconductor laser device, and for reflecting the optical signal to be received, incident through the other end of the optical fiber, is supported by being inserted into the second base and the body of the optical fiber. A light-receiving device for receiving the optical signal to be received, reflected by the reflective filter, is secured to the second base.

摘要翻译： 本发明的光发射机/接收机装置包括：用于发送/接收光信号的光纤; 以及包括相互间隔开的光信号发送和接收区域的第一基座和位于光信号发射和接收区域之间的光纤端支撑区域。 用于发射要发射的光信号的半导体激光装置被固定到第一基座的光信号传输区域。 在第一基座的光纤端部支撑区域中形成用于支撑从半导体激光装置发射的光信号入射的光纤的一端的光纤端部支撑部。 用于支撑光纤主体的第二基座被固定到第一基座的光信号接收区域。 用于透射从半导体激光装置发射的待发射的光信号和用于反射通过光纤的另一端入射的待接收的光信号的反射滤波器被插入到第二基座中，并且 光纤本体。 用于接收由反射滤光器反射的待接收的光信号的光接收装置被固定到第二基座。

公开(公告)号：US06327407B1

公开(公告)日：2001-12-04

申请号：US09187401

申请日：1998-11-06

申请人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Tohru Nishikawa ,  Tomoaki Uno

IPC分类号： G02B630

CPC分类号： G02B6/4246 ,  G02B6/4214 ,  G02B6/423 ,  G02B6/4239 ,  G02B6/4243 ,  G02B6/4253 ,  G02B6/4267 ,  G02B6/4274

摘要： A semiconductor light-receiving device comprises a substrate, an optical fiber, a semiconductor light-receiving element, an optical member, and holders. A groove for a buried optical fiber is formed in the main surface of the substrate to extend from one end of the substrate to the other end thereof. The optical fiber is buried in the optical fiber groove and covered with a resin material. The semiconductor light-receiving element has a light-receiving portion at a surface thereof in opposing relation to the main surface of the substrate and is disposed on the main surface of the substrate via bumps such that the light-receiving portion is opposed to the optical fiber. The optical member is disposed in the substrate in an intersecting relationship with the optical fiber to reflect or diffract signal light propagated through the optical fiber and irradiate the light-receiving portion of the semiconductor light-receiving element with the reflected or diffracted signal light. The holders are provided in the substrate to suppress a temperature-dependent variation in the width of the optical fiber groove.

摘要翻译： 半导体光接收装置包括基板，光纤，半导体光接收元件，光学构件和保持器。 在基板的主表面上形成用于掩埋光纤的槽，从基板的一端延伸到另一端。 光纤被埋在光纤槽中并用树脂材料覆盖。 半导体光接收元件在其表面上具有与基板的主表面相对的表面的光接收部分，并且通过凸块设置在基板的主表面上，使得光接收部分与光学元件 纤维。 光学构件以与光纤交叉的关系设置在基板中，以反射或衍射通过光纤传播的信号光，并用反射或衍射信号光照射半导体光接收元件的光接收部分。 保持器设置在基板中以抑制光纤槽的宽度方面的温度变化。

公开(公告)号：US5978535A

公开(公告)日：1999-11-02

申请号：US39379

申请日：1998-03-16

申请人： Masahiro Mitsuda ,  Souichi Kimura ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Souichi Kimura ,  Tomoaki Uno

IPC分类号： G02B6/32 ,  G02B6/26 ,  G02B6/42 ,  G02B27/28 ,  G02F1/09 ,  H01S3/00 ,  H01S3/06 ,  H01S3/10 ,  H01S5/00 ,  H01S5/022 ,  H01S5/026 ,  G02B6/36 ,  H01S3/091

CPC分类号： G02B6/4208 ,  H01S5/02252 ,  G02B6/2746 ,  G02B6/4213 ,  G02B6/424 ,  G02B6/4271 ,  G02B6/4286 ,  G02F1/093 ,  H01S5/0064 ,  H01S5/0224 ,  H01S5/02284 ,  H01S5/0683 ,  Y10S372/703

摘要： An active layer of a semiconductor laser element held by a laser mount is formed to be closer to the bottom than to the center of the height of the semiconductor laser element. A laser beam emitted from the active layer passes through a collective lens and an optical isolator and enters an incidence portion of an optical fiber. Returning light reflected by the incidence portion of the optical fiber passes through the optical isolator and the collective lens and is collected onto an end face of the laser mount. The optical isolator includes first and second rutiles which transmit normal light with refraction and abnormal light without refraction, a Faraday element which rotates a polarization plane of transmitted light in the clockwise direction by 45 degrees, and a permanent magnet for applying a magnetic field to the Faraday element.

摘要翻译： 由激光器座保持的半导体激光元件的有源层形成为比半导体激光元件的高度的中心更靠近底部。 从有源层发射的激光束通过集体透镜和光隔离器并进入光纤的入射部分。 由光纤的入射部反射的返回光通过光隔离器和集体透镜，并被收集在激光座的端面上。 光隔离器包括第一和第二红宝石，其透射具有折射的正常光和不具有折射的异常光;将透射光的偏振面沿顺时针方向旋转45度的法拉第元件和用于向 法拉第元素。

公开(公告)号：US5914808A

公开(公告)日：1999-06-22

申请号：US701987

申请日：1996-08-23

申请人： Masahiro Mitsuda ,  Jun Ohya ,  Tomoaki Uno

发明人： Masahiro Mitsuda ,  Jun Ohya ,  Tomoaki Uno

IPC分类号： G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H01S3/00

CPC分类号： H01S3/06758

摘要： The fiber amplifier of this invention includes: a first rare earth element doped fiber; a second rare earth element doped fiber; and a pump light source for generating pump light for exciting the first rare earth element doped fiber and the second rare earth element doped fiber, the fiber amplifier receiving analog signal light and amplifying the analog signal light, wherein the fiber amplifier further includes a directional transmitter disposed between the first rare earth element doped fiber and the second rare earth element doped fiber, and a transmittance of the directional transmitter for at least light having the same wavelength as the signal light propagating from the first rare earth element doped fiber to the second rare earth element doped fiber is larger than a transmittance of the directional transmitter for the light propagating from the second rare earth element doped fiber to the first rare earth element doped fiber.

摘要翻译： 本发明的光纤放大器包括：第一稀土元素掺杂光纤; 第二稀土元素掺杂光纤; 以及泵浦光源，用于产生用于激发第一稀土元素掺杂光纤和第二稀土元素掺杂光纤的泵浦光，所述光纤放大器接收模拟信号光并放大模拟信号光，其中光纤放大器还包括定向发射器 设置在第一稀土元素掺杂光纤和第二稀土元素掺杂光纤之间，并且定向发射器的透射率至少为与从第一稀土元素掺杂光纤传播到第二稀土元素掺杂光纤的信号光具有相同波长的光 对于从第二稀土元素掺杂光纤向第一稀土元素掺杂光纤传播的光，定向发送器的透射率大于地球元素掺杂光纤。

公开(公告)号：US5936763A

公开(公告)日：1999-08-10

申请号：US968578

申请日：1997-11-13

申请人： Masahiro Mitsuda ,  Tomoaki Uno ,  Kiyoshi Fujihara

发明人： Masahiro Mitsuda ,  Tomoaki Uno ,  Kiyoshi Fujihara

IPC分类号： G02B6/42 ,  H01S3/094 ,  G02B6/28 ,  H01S3/30

CPC分类号： H01S3/094003 ,  G02B6/4249 ,  G02B6/4246 ,  H01S3/094096

摘要： The optical fiber amplifier of this invention includes plural pump light sources for emitting pump light; a first wavelength multiplexer for receiving the pump light emitted by the pump light sources at plural input ports and wavelength multiplexing the received pump light, so as to generate wavelength multiplexed pump light and output the wavelength multiplexed pump light from an output port; a second wavelength multiplexer for receiving the wavelength multiplexed pump light at a first input port and receiving signal light at a second input port, so as to generate coupled light by coupling the wavelength multiplexed pump light and the signal light and emit the coupled light from an output port; and a rare earth-doped optical fiber for receiving the coupled light emitted from the output port of the second wavelength multiplexer and amplifying the coupled light. At least one of the pump light sources is a narrow-linewidth light source for emitting light with a laser linewidth of approximately 5 nm or less as the pump light.

摘要翻译： 本发明的光纤放大器包括用于发射泵浦光的多个泵浦光源; 第一波长多路复用器，用于接收在多个输入端口处由泵浦光源发射的泵浦光，并对接收的泵浦光进行波长多路复用，以产生波长多路复用的泵浦光，并从输出端口输出波长多路复用的泵浦光; 第二波长多路复用器，用于在第一输入端口处接收波长多路复用的泵浦光并在第二输入端口接收信号光，以便通过耦合所述波长多路复用的泵浦光和所述信号光来产生耦合的光，并从 输出端口 以及稀土掺杂光纤，用于接收从第二波长多路复用器的输出端口发射的耦合光并放大耦合的光。 泵浦光源中的至少一个是用于发射具有约5nm或更小的激光线宽的光作为泵浦光的窄线宽光源。