公开(公告)号：US06714696B2

公开(公告)日：2004-03-30

申请号：US10026804

申请日：2001-12-27

申请人： Yoshio Kishimoto ,  Masahiro Mitsuda

发明人： Yoshio Kishimoto ,  Masahiro Mitsuda

IPC分类号： G02B6121

CPC分类号： G02B6/12002 ,  G02B6/42 ,  G02B6/4214 ,  G02B6/43 ,  G02B2006/12069 ,  G02B2006/12104 ,  G02B2006/12164

摘要： The light-wave circuit module includes a substrate having a spot of substantially circular concave shape, an optically reflective film formed along an inner surface of the spot, and a planar optical waveguide passing through the spot. Light in the optical waveguide is reflected and focused obliquely upward by the optically reflective film in the spot.

摘要翻译： 光波形电路模块包括具有大致圆形凹形点的基板，沿着该点的内表面形成的光反射膜和穿过该点的平面光波导。 光波导中的光被光反射膜反射并倾斜向上聚焦。

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：US06836608B2

公开(公告)日：2004-12-28

申请号：US10026806

申请日：2001-12-27

申请人： Yoshio Kishimoto ,  Masahiro Mitsuda

发明人： Yoshio Kishimoto ,  Masahiro Mitsuda

IPC分类号： G02B610

CPC分类号： G02B6/138 ,  G02B6/1221 ,  G02B2006/121

摘要： A planar optical waveguide includes a layered film formed on a substrate, and an optical waveguide core formed in the layered film. A cross section of the optical waveguide core is substantially quadrilateral, and a dopant layer including refractive index-lowering molecules is provided around the optical waveguide core. The refractive index-lowering molecules included in the dopant layer are unevenly distributed in the optical waveguide core with a concentration that is higher toward outer sides and corners of the optical waveguide core, whereby a graded-index optical waveguide is constituted.

摘要翻译： 平面光波导包括形成在基板上的分层膜和形成在层叠膜中的光波导芯。 光波导芯的横截面基本上为四边形，并且在光波导芯周围设置包括折射率降低分子的掺杂剂层。 包含在掺杂剂层中的折射率降低分子在光波导芯中的分布不均匀，其浓度高于光波导芯的外侧和角部，由此构成渐变折射率的光波导。

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：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。

公开(公告)号：US5623362A

公开(公告)日：1997-04-22

申请号：US693859

申请日：1996-08-05

申请人： Masahiro Mitsuda ,  Jun Ohya

发明人： Masahiro Mitsuda ,  Jun Ohya

IPC分类号： G02B27/28 ,  G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/094 ,  H01S3/10 ,  H04B10/2507 ,  H04B10/29 ,  H04B10/293 ,  G02B6/28 ,  H01S3/30

CPC分类号： H01S3/06758 ,  H01S3/094096

摘要： The erbium-doped fiber amplifier comprises: a first erbium-doped optical fiber pumped by 0.98 .mu.m band light and amplifying the signal light; a first pump light source for producing the 0.98 .mu.m band light; a first optical coupler for coupling the 0.98 .mu.m band light with the signal light at an input portion of the first optical fiber; a second erbium-doped optical fiber pumped by 1.48 .mu.m band light and amplifying the signal light; a second pump light source for producing the 1.48 .mu.m band light; and a second optical coupler for coupling the 1.48 .mu.m band light with the signal light at an output portion of the second optical fiber; wherein a pump light isolator is installed between the first optical fiber and the second optical fiber for blocking the passing of the 1.48 .mu.m band light from the second optical fiber to the first optical fiber while allowing the passing of the signal light.

摘要翻译： 铒掺杂光纤放大器包括：第一掺铒光纤，由0.98μm波段光泵浦并放大信号光; 用于产生0.98微米光带的第一泵浦光源; 第一光耦合器，用于将0.98μm带光与在第一光纤的输入部分处的信号光耦合; 第一个掺铒光纤被1.48微米的带光束泵浦并放大信号光; 用于产生1.48微米光带的第二泵浦光源; 以及第二光耦合器，用于在第二光纤的输出部分处耦合1.48μm带光与信号光; 其特征在于，在所述第一光纤与所述第二光纤之间安装泵浦光隔离器，用于阻止从所述第二光纤到所述第一光纤的所述1.48μm带的光通过，同时允许所述信号光的通过。

公开(公告)号：US5598491A

公开(公告)日：1997-01-28

申请号：US517907

申请日：1995-08-22

申请人： Jun Ohya ,  Tomoaki Uno ,  Masahiro Mitsuda

发明人： Jun Ohya ,  Tomoaki Uno ,  Masahiro Mitsuda

IPC分类号： H01S3/13 ,  G02B6/28 ,  H01S3/30

CPC分类号： H01S3/1302 ,  H01S2301/04

摘要： The optical fiber amplifier includes a rare earth doped optical fiber and a pumping light source for outputting pumping light for pumping the rare earth doped optical fiber, the optical fiber amplifier optically amplifying signal light received at an input end and outputting the amplified signal light from an output end, wherein the optical fiber amplifier further includes an optical fiber resonator for laser-oscillating a portion of light of spontaneous emission generated in the rare earth doped optical fiber, which has a wavelength shorter than the wavelength of the signal light, thereby to keep a gain substantially fixed independent of a variation in the wavelength of the signal light.

摘要翻译： 光纤放大器包括稀土掺杂光纤和用于输出用于泵浦稀土掺杂光纤的泵浦光的泵浦光源，光纤放大器光放大在输入端接收的信号光，并输出来自 输出端，其中所述光纤放大器还包括光纤谐振器，用于激光振荡稀土掺杂光纤中产生的自发发光的一部分，其具有比信号光的波长短的波长，从而保持 与信号光的波长变化无关的增益。