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1. 发明专利

JP2003029225A Variable optical filter 审中-公开
标题翻译：可变光学滤波器
公开(公告)号：JP2003029225A
公开(公告)日：2003-01-29
申请号：JP2001217157
申请日：2001-07-17
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOGURE TAICHI , MOTOJIMA KUNIAKI
IPC分类号： G02F1/09 , G02F1/23
摘要： PROBLEM TO BE SOLVED: To obtain a variable optical filter capable of performing fast and dynamic response without using a mechanical movable mechanism. SOLUTION: This variable optical filter having a periodical loss wavelength characteristic with a wavelength and a loss variable by cascading first and second optical filters 1 and 2 having the same amplitude variable characteristic and the same FSR and a loss wavelength characteristic with a phase shifted and controlling the amplitude of the first and second optical filters 1 and 2.
摘要翻译：要解决的问题：获得能够在不使用机械可移动机构的情况下执行快速和动态响应的可变滤光器。解决方案：该可变滤波器具有波长特性和波长特性，通过级联具有相同幅度可变特性和相同FSR和相位移和控制的损耗波长特性的第一和第二滤光器1和2的波长和损耗可变第一和第二滤光器1和2的振幅。

2. 发明专利

JP2006285010A Variable optical attenuator 有权
标题翻译：可变光学衰减器
公开(公告)号：JP2006285010A
公开(公告)日：2006-10-19
申请号：JP2005106177
申请日：2005-04-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOGURE TAICHI , MIYAHARA TOSHIJI , SAITO TAKESHI , HATTA TATSUO , SHIMIZU KATSUHIRO , TOKURA TOSHIYUKI
IPC分类号： G02B26/02
摘要： PROBLEM TO BE SOLVED: To obtain a variable optical attenuator used for adjusting light intensity in an optical communication system or the like, in which average durability is not deteriorated even when large attenuation is given. SOLUTION: The variable optical attenuator comprises: an input optical waveguide having an emitting end face; an output optical waveguide having an incident end face on which radiated light is made incident from the emitting end face of the input optical waveguide; and a variable means which varies the relativity between the emitting end face of the input optical waveguide and the incident end face of the output optical waveguide. The angle between the emitting end face and the incident end face when the variable means does not vary the relativity is so set that the amount of coupling of the emitting light to the output optical waveguide increases as the angle is increased with the variable means. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了获得用于调整光通信系统等中的光强度的可变光衰减器，即使给出大的衰减，平均耐久性也不会劣化。解决方案：可变光衰减器包括：具有发射端面的输入光波导; 输出光波导，其具有从输入光波导的发射端面入射的入射端面; 以及改变输入光波导的发射端面和输出光波导的入射端面之间的相对性的可变装置。当可变装置不改变相对性时，发射端面和入射端面之间的角度被设定为使得发射光与输出光波导的耦合量随着可变装置的角度增加而增加。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2003051791A Optical amplifier 有权
标题翻译：光放大器
公开(公告)号：JP2003051791A
公开(公告)日：2003-02-21
申请号：JP2001239707
申请日：2001-08-07
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ISSHIKI KUNIHIKO , KOGURE TAICHI , MOTOJIMA KUNIAKI
IPC分类号： H01S3/06 , H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/10 , H04B10/07 , H04B10/29 , H04B10/293 , H04B10/294 , H04B10/564 , H04B10/572 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To provide an optical amplifier that has an autonomous control function for making the gain flat. SOLUTION: The optical amplifier includes an optical amplifier section 1 for directly amplifying signal light with a plurality of wavelengths, a laser diode 2 for generating auxiliary signal light with a wavelength shorter than the wavelength range of the main signal with one or more wavelengths within a prescribed wavelength range and modulated with a frequency f1, a laser diode 3 for generating auxiliary signal light with a wavelength longer than the wavelength range of the main signal and modulated with a frequency f2, a 13 dB photocoupler 7 for composing the main signal light with the two pieces of auxiliary signal light and outputting the result to the optical amplifier section 1, electric filters 11, 12 for separating the two pieces of auxiliary signal light with modulation signals having the frequencies f1 and f2 to detect them, a control circuit 13 for controlling the gain of the optical amplifier section 1 according to the respective modulation signal levels detected by the electric filters 11, 12, and an optical filter 9 for outputting only the main signal light included in the output light of the optical amplifier section 1 as the amplified light to the outside.
摘要翻译：要解决的问题：提供一种具有用于使增益平坦的自主控制功能的光放大器。解决方案：光放大器包括用于直接放大具有多个波长的信号光的光放大器部分1，用于产生波长短于主信号的波长范围的波长范围的辅助信号光的激光二极管2，其中一个或多个波长在规定的波长范围并用频率f1进行调制;激光二极管3，用于产生波长比主信号的波长范围长的波长范围并以频率f2调制的辅助信号光; 13dB光电耦合器7，用于组成主信号光; 将两条辅助信号光输出到光放大器部分1，用于将具有频率为f1和f2的调制信号分离两条辅助信号光的电流滤波器11,12用于检测它们;控制电路13，用于根据由ele检测到的各个调制信号电平来控制光放大器部分1的增益滤光片11,12和光滤波器9，仅将包含在光放大器部分1的输出光中的主信号光作为放大光输出到外部。

4. 发明专利

JP2004104473A Optical amplification repeater 审中-公开
公开(公告)号：JP2004104473A
公开(公告)日：2004-04-02
申请号：JP2002263778
申请日：2002-09-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOGURE TAICHI , TOKURA TOSHIYUKI , MIZUOCHI TAKASHI
IPC分类号： H01S3/10 , H01S3/0933 , H01S3/30 , H04B1/74 , H04B10/00 , H04B10/032 , H04B10/079 , H04B10/29 , H04B10/293 , H04B10/297 , H04B10/16 , H04B10/17 , H04B10/24
摘要： PROBLEM TO BE SOLVED: To provide a distributed constant-type optical amplification repeater suppressing deterioration of transmission quality by an increase of loss due to a physical fault such as optical fiber cable disconnection. SOLUTION: The optical amplification repeater of a double line bidirectional optical transmission system is provided with a first excitation light source outputting first excitation light corresponding to first signal light, a second excitation light source outputting second excitation light corresponding to second signal light, a control means controlling output intensity of the first and second excitation light sources, a light synthesizing/branching means outputting first light signal excitation light obtained by synthesizing/branching first excitation light and second excitation light at a branching ratio a:b (a>b) and second light signal excitation light obtained by synthesizing/branching them at the branching ratio b:a, a first optical amplification means amplifying signal light in a first direction based on first light signal excitation light and a second optical amplification means amplifying signal light in a second direction based on second light signal excitation light. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2007227452A Flexible wiring board, its solder bonding method and optical transmitting package using the same 审中-公开
标题翻译：柔性布线板及其焊接接合方法及使用其的光学传输封装
公开(公告)号：JP2007227452A
公开(公告)日：2007-09-06
申请号：JP2006044041
申请日：2006-02-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HAMAGUCHI TSUNEO , SUGIDACHI ATSUSHI , KOGURE TAICHI , NISHIMURA YASUNORI
IPC分类号： H05K3/34
摘要： PROBLEM TO BE SOLVED: To provide a flexible wiring board and its solder bonding method by which electrodes can be bonded to each other by solder without producing a corrosive gas, and to provide an optical transmitting package using the same. SOLUTION: The flexible wiring board 1 is comprised of a conductor 3 formed directly on a flexible heat-resistance insulation film 2, a wiring which is formed by covering such a film 41 as a nickel oxide film or the like on the conductor 3 that is difficult to be wetted by solder, and an electrode 5 which is formed by covering the surface of the wiring with such a film 51 that is easy to be wetted by solder such as gold or the like. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种柔性布线板及其焊接方法，其中电极可以通过焊料彼此接合而不产生腐蚀性气体，并提供使用该柔性布线板的光学传输封装。解决方案：柔性布线板1由直接形成在柔性耐热绝缘膜2上的导体3，通过在导体上覆盖作为氧化镍膜等的膜41而形成的布线 3，其难以被焊料润湿;以及电极5，其通过用诸如金等的焊料易于润湿的膜51覆盖布线的表面而形成。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006039037A Semiconductor optical delay interferometer 审中-公开
标题翻译：半导体光学延迟干涉仪
公开(公告)号：JP2006039037A
公开(公告)日：2006-02-09
申请号：JP2004215880
申请日：2004-07-23
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOGURE TAICHI , SHIMOMURA KENKICHI , SHIMIZU KATSUHIRO
IPC分类号： G02B6/122 , G02F1/035 , H04B10/524 , H04B10/556
摘要： PROBLEM TO BE SOLVED: To obtain a semiconductor optical delay interferometer which can be integrated with a light receiving element and is capable of suppressing sensitivity degradation after demodulation of differentially phase-modulation light. SOLUTION: The semiconductor optical delay interferometer has a semiconductor wave guide layer structure laminated and grown on a semiconductor substrate and is provided with a connection waveguide for guiding one branched light and a delay waveguide which guides the other branched light and has a path length longer than that of the connection waveguide by a delay length corresponding to one time slot of incident light being differentially phase-modulated light. The connection waveguide is provided with a loss adding part for adding a loss corresponding to a propagation loss of the delay length of the delay waveguide, to branched light guided in the connection waveguide. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：获得可以与光接收元件集成并能够抑制差分相位调制光解调之后的灵敏度劣化的半导体光延迟干涉仪。解决方案：半导体光延迟干涉仪具有层叠并生长在半导体衬底上的半导体波导层结构，并且设置有用于引导一个分支光的连接波导和引导另一个分支光的延迟波导，并具有路径长度比连接波导的长度长一个对应于差分相位调制光的入射光的一个时隙的延迟长度。连接波导设置有用于将与延迟波导的延迟长度的传播损耗相对应的损耗相加的损耗添加部分连接到在连接波导中引导的分支光。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004193640A Raman amplifier and optical relay transmission system 有权
公开(公告)号：JP2004193640A
公开(公告)日：2004-07-08
申请号：JP2002355341
申请日：2002-12-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TOKURA TOSHIYUKI , KOGURE TAICHI , KAJIYA SATORU , MIZUOCHI TAKASHI
IPC分类号： G02F1/35 , H01S3/10 , H01S3/30 , H04B10/077 , H04B10/079 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/17
CPC分类号： H04B10/2916
摘要： PROBLEM TO BE SOLVED: To provide a Raman amplifier which has a prescribed average gain and a prescribed wavelength characteristic independently of an optical fiber and a level of signal light and dispenses with a complicated apparatus constitution. SOLUTION: The Raman amplifier is provided with an optical fiber 1 used for transmitting a signal light resulting from multiplexing signal lights with a plurality of wavelengths and a reference light not subjected to Raman amplification and applying Raman amplification to the signal light; an excitation light source 8 for outputting an excited light to apply Raman amplification to the signal light; a demultiplexer 5 for demultiplexing the signal light and the reference light from part of the signal light propagated through the optical fiber 1; a signal light level detector 6a for detecting a level of the demultiplexed signal light; a signal light level detector 6b for detecting a level of the demultiplexed reference light; and a target signal level setting section 7a for calculating a signal light level control target value to keep a Raman gain to be a prescribed value based on the detected level of the reference light and controlling an output of the excited light emitted from the excitation light source 8 so that the detected level of the signal light matches with the calculated control target value of the signal light level. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2002005784A LIGHT AMPLIFIER 失效
公开(公告)号：JP2002005784A
公开(公告)日：2002-01-09
申请号：JP2000186397
申请日：2000-06-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOGURE TAICHI
IPC分类号： G01M11/00 , H01L31/0232 , H01S3/06 , H01S3/067 , H01S3/10 , H04B10/032 , H04B10/07 , H04B10/071 , H04B10/077 , H04B10/29 , H04B10/291 , H04B17/00 , H04B10/08 , H04B10/16 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To provide a light amplifier capable of realizing early recovery of a system by immediately determining an abnormal portion and an abnormal cause after abnormality of a transmission line is detected. SOLUTION: This light amplifier has a monitoring signal light source 20 emitting a monitoring signal light independent of an excitation light source 4 for exciting erbium added optical fibers 3a, 3b, and a pulse generating circuit 21 for generating pulses having specific duty ratio when abnormality is detected, and by emitting a pulsed light corresponding to the pulse from the excitation light source 4, the excitation light source 4 is used as a light source for emitting the pulsed light for measuring back scattered light in addition to the light source for exciting the erbium added optical fibers 3a, 3b. Since the a back scattered light detecting circuit 22 is installed, the abnormal portion and the abnormal cause can be determined at almost the same time as circuit abnormality detection.

9. 发明专利

JPH08116117A LIGHT AMPLIFIER 失效
公开(公告)号：JPH08116117A
公开(公告)日：1996-05-07
申请号：JP25058894
申请日：1994-10-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOGURE TAICHI
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/094 , H01S3/10 , H01S3/13 , H01S3/17 , H04B10/07 , H04B10/25 , H04B10/293 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14
摘要： PURPOSE: To obtain a light amplifier which prevents a noise characteristic from being degraded largely by a method wherein a beam of exciting light, for compensation, at a wavelength band inducing an ESA is input to a rare earth-doped fiber, the laser upper-level density of doped rare-earth-elements or ions is adjusted and an excition light source for compensation is controlled according to the gain of the optical fiber. CONSTITUTION: A beam of exciting light is output from an excition light source 4, and it is input to a rare earth-doped optical fiber 3 via an exciting-light multiplexer- branching filter 5. A beam of exciting light for compensation light is output from an excitation light source 6 for compensation, and it is input to the optical fiber 3 via an exciting-light multiplexer-branching filter 7 for compensation. A beam of signal light is input from an input terminal 1, it is input to the optical fiber 3 via a light branching coupler 8 and the light multiplexer-branching filter 7, it is amplified, and it is output from a signal output terminal 2 via the exciting-light multiplexer- branching filter 5. The gain of an ESA which is generated in the optical fiber 3 is detected 10 via the exciting-light multiplexer-branching filter 7 for compensation and the light branching coupler 8, the ESA is gain-controlled 9 in such a way that its output becomes constant, and the excitation light source 6 for compensation is driven. Consequently, the gain of an amplifier is stabilized.

10. 发明专利

JPH07115240A OPTICAL FIBER AMPLIFIER 失效
公开(公告)号：JPH07115240A
公开(公告)日：1995-05-02
申请号：JP25841993
申请日：1993-10-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOGURE TAICHI , NAKAMURA TAKESHI
IPC分类号： G02F1/35 , H01S3/06 , H01S3/07 , H01S3/10
摘要： PURPOSE:To obtain a high power low noise optical fiber amplifier where energy of excitation light can be utilized without any loss. CONSTITUTION:Excitation light from an excitation light source 3a is inputted into first rare earth element added optical fibers 5a after passage through an optical synthesis/division unit 2a and is further inputted into second rare earth element added optical fibers 5b after passage through a second optical synthesis/ division unit 2b and a third optical synthesis/division unit 2c. Further, excitation light from an excitation light source 3b is inputted into the second rere earth element added optical fibers 5b after passage through the second optical synthesis/division unit 2b and is further inputted into the first rare earth element added optical fiber 5a after passage through the second optical synthesis/division unit 2b. Hereby, the excitation light is effectually utilized.

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