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41. 发明专利

JP2007074254A Relay transfer system 有权
标题翻译：继电器传输系统
公开(公告)号：JP2007074254A
公开(公告)日：2007-03-22
申请号：JP2005258069
申请日：2005-09-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TOKURA TOSHIYUKI , SHIMIZU KATSUHIRO
IPC分类号： H04B1/74 , H04B3/36 , H04B10/038 , H04B10/07 , H04B10/16 , H04B10/29
摘要： PROBLEM TO BE SOLVED: To improve reliability of system in a relay transfer system.
SOLUTION: A transmission station, two ore more relay devices, and receiving stations are connected through a transfer path; and a signal transmitted from the transmission station is relayed by each relay device and transferred to the receiving stations in this relay transfer system. Each relay device includes a receiving unit for receiving the signal entered in the self relay device and reproduces it, a transmitter for transmitting the signal generated from the self relay device, a path selection unit for selecting the transmitting unit for generating the signal which was reproduced in the receiving unit, and a transmission path for passing the signal entered in the self relay device and generating it from the self relay device. The transmission path of each relay device is connected to the transmitter or the receiving unit of the adjoining relay device through a transmission path.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提高中继传输系统系统的可靠性。解决方案：传输站，两个以上的中继设备和接收站通过传输路径连接; 并且从发送站发送的信号由每个中继设备中继，并被传送到该中继传送系统中的接收站。每个中继设备包括一个接收单元，用于接收输入到自身中继设备中的信号并将其再现，一个发送器，用于发送从该自身中继设备产生的信号;路径选择单元，用于选择发送单元，用于产生被再现的信号以及用于使进入自身中继装置的信号通过并从自身中继装置产生的传输路径。每个中继设备的传输路径通过传输路径连接到相邻中继设备的发射机或接收单元。版权所有（C）2007，JPO＆INPIT

42. 发明专利

JP2006325124A OPTICAL RECEIVER 审中-公开
公开(公告)号：JP2006325124A
公开(公告)日：2006-11-30
申请号：JP2005148349
申请日：2005-05-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIMOMURA KENKICHI , SHIMIZU KATSUHIRO , KOGURE TAICHI
IPC分类号： H04B10/40 , H04B10/07 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/548 , H04B10/60 , H04B10/61 , H04B10/67
摘要： PROBLEM TO BE SOLVED: To obtain an optical receiver capable of optimally controlling MZI (Mach Zehnder interferometer) passing waves without deteriorating receiving characteristics and without using a high-speed electrical circuit. SOLUTION: The optical receiver for receiving an optical DPSK (differential phase shift key) signal that is differentially encoded by a one-bit delay amount is provided with an optical branching circuit 10 for branching the received optical DPSK signal, a Mach Zehnder interferometer 20 in which a relative delay amount between arms is 1/2 bit and which converts the optical DPSK signal branched by the optical branching circuit 10 into an intensity modulation signal, an optical branching circuit 40 for respectively returning two optical outputs of the Mach Zehnder interferometer 20 and respectively branching a portion of the two optical outputs, a wavelength deviation detection circuit 50 for detecting an output difference between optical power of the two optical outputs branched by the optical branching circuit 40, and a control circuit 60 for controlling the passing wavelength of the Mach Zehnder interferometer 20 on the basis of the output difference between the two optical power detected by the wavelength deviation detection circuit 50. COPYRIGHT: (C)2007,JPO&INPIT

43. 发明专利

JP2006313782A Light transmission system 审中-公开
标题翻译：光传输系统
公开(公告)号：JP2006313782A
公开(公告)日：2006-11-16
申请号：JP2005135092
申请日：2005-05-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TOKURA TOSHIYUKI , SHIMIZU KATSUHIRO , FUJIEDA AKIRA
IPC分类号： H01S3/10 , G01V1/00 , H04B10/00 , H04B10/07 , H04B10/25 , H04B10/296 , H04B10/297 , H04B10/54 , H04B10/564 , H04B10/588 , H04J14/00 , H04J14/02
摘要： PROBLEM TO BE SOLVED: To reduce the deflection of the intensity generated between signal lights of different routes, and to reduce the deflection of the intensity of signal lights of different wavelengths generated when the number of the signal lights which performs wavelength multiplexing is changed by the disconnection of an optical fiber cable and increasing or decreasing of a modulation office, etc. SOLUTION: A land terminal station 10a includes a signal optical source device 1a which sends out a signal light to one optical fiber cable, and a receiver 7b which converts the signal light received from another side optical fiber cable into an electrical signal. Optical repeaters 5a-5h each have the amplification function of the signal light in which a propagation loss in the optical fiber cable is compensated. Submarine modulation stations 8a-8c each has frequency separating means 8a-8f each for demultiplexing the signal light of a specific wavelength assigned from the one optical fiber cable to the submarine modulation stations, modulators 9a-9f each for modulating observation data to the signal light in which a frequency is separated and which regulates so that the average strength of the signal light to output may become within a predetermined range, and multiplexing means 8a-8f each for leading the signal light output from the modulator to the optical fiber cable of another side. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了减少在不同路线的信号光之间产生的强度的偏转，并且减少当执行波长复用的信号光的数量为光纤线缆的断开以及调制办公室的增加或减少等改变。解决方案：陆地终端站10a包括向一根光纤电缆发出信号光的信号光源装置1a，以及接收器7b，其将从另一侧光纤电缆接收的信号光转换为电信号。光中继器5a-5h各自具有补偿光缆中的传播损耗的信号光的放大功能。海底调制站8a-8c各自具有频率分离装置8a-8f，每个用于将从一条光缆分配的特定波长的信号光解复用于海底调制站，每个用于将观测数据调制到信号光的调制器9a-9f 频率分离并调节，使得输出的信号光的平均强度可能变得在预定范围内，并且多路复用装置8a-8f分别用于将从调制器输出的信号光引导到另一个的光纤电缆侧。版权所有（C）2007，JPO＆INPIT

44. 发明专利

JP2006041769A Optical wavelength multiplex transmission system and circulative wavelength multiplex multiplexer demultiplexer 审中-公开
标题翻译：光波长多路复用传输系统和循环波长多路复用器多路复用器
公开(公告)号：JP2006041769A
公开(公告)日：2006-02-09
申请号：JP2004216759
申请日：2004-07-26
申请人： Mitsubishi Electric Corp , Nippon Telegr & Teleph Corp , 三菱電機株式会社 , 日本電信電話株式会社
发明人： KAJIYA SATORU , SHIMIZU KATSUHIRO , KAMIMURA ARITOMO , NAKAGAWA JUNICHI , SUZUKI SENTA , NOGUCHI KAZUTO , HARADA HIDEMARU
IPC分类号： H04Q3/52 , H04B10/00 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02 , H04L12/44 , H04L12/931
摘要： PROBLEM TO BE SOLVED: To provide an optical wavelength multiplex transmission system capable of easily setting or revising the apparatus configuration and having abundant flexibility.
SOLUTION: The optical wavelength multiplex transmission system includes: wavelength multiplex transmitter-receivers 1-1 to 1-4 including wavelength multiplex transmission sections 2-1 to 2-4 and wavelength multiplex reception sections 3-1 to 3-4; a circulative wavelength multiplexer demultiplexer 4 that includes a plurality of input ports and a plurality of output ports, demultiplexes a wavelength multiplex signal light received from each input port to different output ports, and multiplexes signal light beams with the same wavelengths received from the plurality of input ports and outputs the multiplexed signal light to each output port; and optical multiplexers demultiplexers 7-1 to 7-4 for multiplexing demultiplexing inputs and outputs of the circulative wavelength multiplex multiplexer demultiplexer 4, the number N of input ports and the number N of output ports of the circulative wavelength multiplex multiplexer demultiplexer 4 are selected to be the same, and the plurality of consecutive input ports or output ports of the circulative wavelength multiplex multiplexer demultiplexer 4 are coupled by the optical multiplexers demultiplexers 7-1 to 7-4.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够容易地设置或修改设备配置并且具有丰富的灵活性的光波长多路复用传输系统。光波长复用传输系统包括：波长多路复用发射机 - 接收机1-1至1-4，包括波长复用传输部分2-1至2-4和波长多路复用接收部分3-1至3-4; 包括多个输入端口和多个输出端口的循环波长多路复用器多路复用器4，将从每个输入端口接收的波长多路复用信号光解复用到不同的输出端口，并且复用从多个输入端口接收的具有相同波长的信号光束输入端口并将复用的信号光输出到每个输出端口; 并且选择用于对循环波长多路复用多路复用器解复用器4的解复用输入和输出进行复用的多路复用器多路复用器7-1至7-4，输入端口的数量N和循环波长多路复用多路复用器解复用器4的输出端口数N被选择为相同，并且循环波长多路复用多路复用器解复用器4的多个连续输入端口或输出端口由光复用器多路分解器7-1至7-4耦合。版权所有（C）2006，JPO＆NCIPI

45. 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

46. 发明专利

JP2003042906A Instrument for measuring optical snr, optical transmission device, and optical communication system 有权
标题翻译：用于测量光信号的仪器，光传输设备和光通信系统
公开(公告)号：JP2003042906A
公开(公告)日：2003-02-13
申请号：JP2001232595
申请日：2001-07-31
申请人： Mitsubishi Electric Corp , Nippon Telegr & Teleph Corp , 三菱電機株式会社 , 日本電信電話株式会社
发明人： SHIMIZU KATSUHIRO , SUGIHARA TAKASHI , KOBAYASHI YUKIO , MIZOGUCHI TAKAHIRO , AMAMIYA MASAKI , FUJIWARA MASAMITSU , TAKACHIO NOBORU , IWATSUKI KATSUMI
IPC分类号： G01J1/44 , G01M11/02 , G02F1/01
摘要： PROBLEM TO BE SOLVED: To easily and precisely measure optical SNR, even when a plurality of light signals run parallel to a narrow wavelength interval. SOLUTION: There are provided a switch 5 for turning on and off impression to a light modulator 2 of a modulation signal, a bias control circuit 8 for conducting regulation to make intensity of modulated light output, by switching of the light modulator 2 according to an on-off operation of the switch 5 with the intensity of non-modulated light which is not modulated therein, and an optical SNR measuring circuit 13 for calculation the ratio of light signal intensity of the modulated light to optical noise intensity thereof, using both or either value(s) of light signal intensity of the non-modulated light and/or optical noise intensity thereof regulated by the bias control circuit 8.
摘要翻译：要解决的问题：即使当多个光信号平行于窄波长间隔延伸时，为了容易且精确地测量光学SNR。解决方案：提供一个开关5，用于对调制信号的光调制器2打开和关闭印象;偏置控制电路8，用于通过根据光调制器2的切换进行调制以调制调制光的输出强度开关5的非调制光的强度未被调制的开关5的开 - 关动作以及用于计算调制光的光信号强度与其光噪声强度的比率的光SNR测量电路13，使用两者或非调制光的光信号强度的值和/或由偏置控制电路8调节的光噪声强度的值。

47. 发明专利

JP2002359597A OPTICAL RELAY UNIT AND OPTICAL RELAY TRANSMISSION SYSTEM 失效
公开(公告)号：JP2002359597A
公开(公告)日：2002-12-13
申请号：JP2001167130
申请日：2001-06-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAO , SHIMIZU KATSUHIRO
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/10 , H01S3/30 , H04B10/07 , H04B10/25 , H04B10/2507 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H04B10/16 , H04B10/02 , H04B10/17 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To provide an optical relay unit and an optical relay transmission system, capable of reducing gain deviation generated through an optical relay unit by controlling the excitation light in Raman amplification. SOLUTION: In this optical relay transmission system constructed of a plurality of optical relay units (first to n-th optical relay units 30-1 to 30-n), each optical relay unit adjusts the excitation light intensity of an exciting light source for Raman amplification, based on the detected result of the intensity of a multiple signal light in which gain deviation is generated. As a result, final gain deviation of the terminal part of a transmission path can be reduced.

48. 发明专利

JP2002357854A OPTICAL COMMUNICATION SYSTEM 失效
公开(公告)号：JP2002357854A
公开(公告)日：2002-12-13
申请号：JP2001167129
申请日：2001-06-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUZUKI MASAO , SHIMIZU KATSUHIRO
IPC分类号： G02F1/35 , H01S3/06 , H01S3/067 , H01S3/30 , H04B10/29 , H04B10/293 , H04B10/16 , H04B10/17
摘要： PROBLEM TO BE SOLVED: To improve an OSNR and transmission characteristics of an optical communication system. SOLUTION: A first exciting light for Raman-amplifying a signal light and a second exciting light for Raman-amplifying the first exciting light are inputted from an optical multiplexer 5 arranged near an optical signal outputting part 8 to an optical signal to be inputted from an optical signal inputting part 6 to an optical fiber 7, and to be outputted from an optical signal outputting part 8 so that the Raman amplification of the signal light can be performed in the optical fiber 7.

49. 发明专利

JP2002353896A OPTICAL TRANSMITTER 失效
公开(公告)号：JP2002353896A
公开(公告)日：2002-12-06
申请号：JP2001154195
申请日：2001-05-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI TATSUYA , ISHIDA KAZUYUKI , SHIMIZU KATSUHIRO , KOBAYASHI YUKIO
IPC分类号： G02F1/01 , H04B10/07 , H04B10/2525 , H04B10/255 , H04B10/40 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/54 , H04B10/556 , H04B10/58 , H04B10/60 , H04B10/61 , H04B10/04 , H04B10/00 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To provide an optical transmitter provided with a feedback control system so that the phase relation of an optical intensity modulator and an optical phase modulator always becomes a prescribed value. SOLUTION: A mixer 10 compares phases between clock signals applied to an optical phase modulator (PM) 3 and an optical intensity modulator (AM) 5. An automatic delay compensation circuit (ADC) 12 controls the phase quantity of a phase shifter (Δϕ) 13 so that the phase relation between both signals becomes the prescribed value based on the phase comparison result. Above operations are repeated and the phase relation of the clock signals applied to the optical phase modulator (PM) 3 and the optical intensity modulator (AM) 5 is maintained to the prescribed value.

50. 发明专利

JP2001345759A OPTICAL REPEATER 失效
公开(公告)号：JP2001345759A
公开(公告)日：2001-12-14
申请号：JP2000165814
申请日：2000-06-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： KANESHIRO KAORU , SHIMIZU KATSUHIRO , SUGIHARA TAKASHI
IPC分类号： H01S3/10 , H01S3/06 , H01S3/067 , H01S3/094 , H01S3/0941 , H04B10/077 , H04B10/079 , H04B10/29 , H04B10/293 , H04B10/297 , H04B10/17 , H04B10/16
摘要： PROBLEM TO BE SOLVED: To provide an optical repeater which can effectively cope with recent increase of data transmission demand without increasing the cost due to increase of cabinets, complicating the structure of an optical amplifying part, and increasing the power consumption. SOLUTION: A first optical repeating apparatus 1a is equipped with an optical amplifying part 2a which amplifies a signal of an up stream optical fiber 14, an optical branching part 9 and an optical combining part 8. A second optical repeating apparatus 1b is equipped with an optical amplifying part 2b which amplifies a signal of a down stream optical fiber 15. The first repeating apparatus is connected with the second repeating apparatus through a cable. A part of a signal in the up stream optical fiber which is tapped by the optical branching part 9 is combined with the down stream optical fiber by using the optical combining part 8.

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