专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JP5458313B2 Optical multilevel transmission system 有权
公开(公告)号：JP5458313B2
公开(公告)日：2014-04-02
申请号：JP2011502563
申请日：2009-03-02
申请人：株式会社日立製作所
发明人：信彦菊池
IPC分类号： H04L27/34 , H04B10/50 , H04B10/516 , H04B10/54 , H04B10/61 , H04B10/67 , H04B10/69
CPC分类号： H04B10/5055 , H04B10/541 , H04B10/676 , H04B10/695 , H04L25/061 , H04L27/3845

82. 发明专利

JP2008219069A Optical receiver and optical transmitter 审中-公开
标题翻译：光接收器和光传输器
公开(公告)号：JP2008219069A
公开(公告)日：2008-09-18
申请号：JP2007049231
申请日：2007-02-28
申请人： Yokogawa Electric Corp , 横河電機株式会社
发明人： ASANO TETSUTOSHI
IPC分类号： H04B10/40 , H04B10/07 , H04B10/2507 , H04B10/50 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/60 , H04B10/61 , H04B10/69
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/548 , H04B10/676
摘要： PROBLEM TO BE SOLVED: To provide an optical receiver which can stably receive a transmission light signal without modulating a control signal of a delay interferometer, and to provide an optical transmitter.
SOLUTION: The optical receiver for receiving a transmission light signal which is subjected to an optical phase modulation based on a data signal to be transmitted and has a dither signal superposed thereon includes: a delay interferometer to which the transmission light signal having the dither signal superposed thereon is applied and which converts the transmission light signal into a light intensity modulation signal based on a control signal; a photodetector for converting two light outputs of the delay interferometer into an electric signal; two current detecting means for differentially detecting a photocurrent flowing to the photodetector as a detection voltage; a data clock reproducing means for outputting the data signal and a clock signal based on an output of the photodetector; two filter means for extracting dither signal components of the differential detection voltages respectively; and a control means for determining the control signal and applying the control signal to the delay interferometer in such a manner that one of the differential detection voltages is a maximum and the other is a minimum, and both of the dither signal components which are extracted have a minimum amplitude.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以稳定地接收传输光信号而不调制延迟干涉仪的控制信号的光接收机，并提供光发射机。解决方案：用于接收基于要发送的数据信号进行光相位调制并具有叠加在其上的抖动信号的发送光信号的光接收器包括：延迟干涉仪，其中具有叠加在其上的抖动信号被施加，并且基于控制信号将透射光信号转换成光强度调制信号; 用于将延迟干涉仪的两个光输出转换成电信号的光电检测器; 两个电流检测装置，用于将流过光电检测器的光电流差分检测为检测电压; 数据时钟再现装置，用于基于光电检测器的输出输出数据信号和时钟信号; 两个滤波器装置，用于分别提取差分检测电压的抖动信号分量; 以及控制装置，用于确定控制信号并将控制信号施加到延迟干涉仪，使得差分检测电压之一为最大值，另一个为最小值，并且提取的抖动信号分量均为最小幅度。版权所有（C）2008，JPO＆INPIT

83. 发明专利

JP2005080304A Method and system for automatic feedback control for fine tuning delay interferometer 有权
标题翻译：微调延迟干扰仪的自动反馈控制方法与系统
公开(公告)号：JP2005080304A
公开(公告)日：2005-03-24
申请号：JP2004248788
申请日：2004-08-27
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HOSHIDA GOJI , CHOUDHARY SEEMANT
IPC分类号： H04B10/04 , H04B10/00 , H04B10/06 , H04B10/142 , H04B10/152 , H04B10/158
CPC分类号： H04B10/69 , H04B10/67 , H04B10/676 , H04B10/677
摘要： PROBLEM TO BE SOLVED: To provide techniques for tuning a delay interferometer in an intensity modulated DPSK system. SOLUTION: In receiving an optical signal, an ingress signal is split into a first portion and a second portion. A relative delay is induced between the first portion and the second portion, which are optically interfered to generate at least one interfered signal. Quality criteria of a received signal at least based on the at least one interfered signal is monitored so that a relative delay based in the quality criteria may be adjusted. The relative delay is adjusted on the basis of the result of monitoring. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供在强度调制的DPSK系统中调谐延迟干涉仪的技术。解决方案：在接收光信号时，入口信号被分成第一部分和第二部分。在第一部分和第二部分之间产生相对的延迟，其被光学干涉以产生至少一个干扰信号。监视至少基于至少一个干扰信号的接收信号的质量标准，使得可以调整基于质量标准的相对延迟。相对延迟是根据监测结果进行调整的。版权所有（C）2005，JPO＆NCIPI

84. 发明公开

EP3281313A1 POLARIZATION INSENSITIVE SELF-HOMODYNE DETECTION RECEIVER 有权
标题翻译：极化不敏感自同型检测接收机
公开(公告)号：EP3281313A1
公开(公告)日：2018-02-14
申请号：EP15888399.1
申请日：2015-04-10
申请人： National Institute of Information and Communications Technology
发明人： SOARES, Luis Ruben , PUTTNAM, Ben , DELGADO, Mendinueta Jose Manuel , AWAJI, Yoshinari , WADA, Naoya
IPC分类号： H04B10/63 , H04J14/00 , H04J14/04 , H04J14/06
CPC分类号： H04B10/63 , H04B10/614 , H04B10/6151 , H04B10/676 , H04J14/06
摘要： The receiver 11 for self-homodyne detection comprises a coherent detection system and a direct detection system. The receiver comprises a polarization splitter 13, a first splitter 15, a 90 degree polarization rotor 17, a hybrid detector 19, a first balanced detector 21, and a processor 23.

85. 发明公开

EP3078133A1 DISPOSITIF ET PROCÉDÉ DE DÉMODULATION D'UN SIGNAL MODULÉ SUR UNE PORTEUSE OPTIQUE 审中-公开
标题翻译： DEVICE AND METHOD FOR AN解调对光信号调制载波
公开(公告)号：EP3078133A1
公开(公告)日：2016-10-12
申请号：EP14806617.8
申请日：2014-12-02
申请人： THALES
发明人： PILLET, Grégoire , BÖRNER, Joachim , MORVAN, Loïc
IPC分类号： H04B10/2575 , G02F2/00 , H04B10/67
CPC分类号： H04B10/676 , G02F1/116 , G02F2/002 , G02F2001/212 , H04B10/25759
摘要： The invention relates to a device (1) for the demodulation of a signal (E1) modulated onto an optical carrier, said device being characterised in that it comprises an optical loop (2) comprising: an optoelectronic (5) modulator suitable for the phase or amplitude modulation of a signal that it receives at the inlet thereof; means for the transposition of optical frequency (3) suitable for shifting the frequency of an optical signal that they receive at the inlet thereof by a frequency step; and an amplifier (4).

86. 发明公开

EP2478654A1 OPTISCHE ANORDNUNG 审中-公开
标题翻译：光学装置
公开(公告)号：EP2478654A1
公开(公告)日：2012-07-25
申请号：EP10773540.9
申请日：2010-08-31
申请人： Karlsruher Institut für Technologie
发明人： HILLERKUSS, David , LEUTHOLD, Jürg , FREUDE, Wolfgang
IPC分类号： H04B10/155 , H04B10/158 , G01B9/02 , G06E3/00
CPC分类号： G06E3/003 , H04B10/548 , H04B10/676
摘要： The invention relates to a receiver for serial OFDM signals, comprising scanning means and Fourier transformation means. According to the invention, the Fourier transformation means comprise a deceleration interferometer cascade and said scanning means are arranged downstream of the cascade.

87. 发明授权

EP1703651B1 Method and system for automatic feedback control for fine tuning a delay interferometer 有权
标题翻译：用于微调一个Verzögerungsinterferometers自动反馈控制的方法和装置
公开(公告)号：EP1703651B1
公开(公告)日：2010-02-24
申请号：EP06014162.9
申请日：2004-08-23
申请人： FUJITSU LIMITED
发明人： Hoshida, Takeshi , Choudhary, Seemant
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/67 , H04B10/676 , H04B10/677

88. 发明授权

EP0930485B1 Vorrichtung zur Erfassung oder Erzeugung optischer Signale 有权
标题翻译：一种用于检测或生成的光信号装置
公开(公告)号：EP0930485B1
公开(公告)日：2008-07-09
申请号：EP98122789.5
申请日：1998-12-01
申请人： Campus Technologies AG
发明人：
IPC分类号： G01J3/453 , G01J9/02
CPC分类号： H04B10/676 , G01J3/453

89. 发明公开

EP1744476A1 Transmission method and processing unit for a modulated optical signal 审中-公开
标题翻译： Übertragungsverfahrenund Verarbeitungseinheitfürein moduliertes optisches Signal
公开(公告)号：EP1744476A1
公开(公告)日：2007-01-17
申请号：EP05291512.1
申请日：2005-07-12
申请人： ALCATEL
发明人： Buchali, Fred
IPC分类号： H04B10/155 , H04B10/158 , H04L27/02
CPC分类号： H04L27/02 , H04B10/5165 , H04B10/676
摘要： A method for transmitting a modulated optical signal (S) comprising a carrier and at least two sidebands (LSB, USB) which are arranged symmetrically to a carrier wavelength (λC) from a transmitter (2) to a receiver (3) via an optical transmission link (4, 4', 4") comprises the steps of: separating the optical signal (S) into two optical single sideband signals (SB1, SB2) symmetrically to the carrier wavelength (λC), mirroring one of the two sideband signals (SB2) to the spectral location of the other single sideband signal (SB1), and combining both sideband signals (SB1, SB2) prior to optical-electrical conversion at the receiver (3). To this end and according to another aspect of the invention, a signal processing unit (5) comprises a wavelength mirror (7) that mirrors one of the sidebands (SB2) of the transmitted signal (S) onto the other (SB1). The inventive method thus achieves an improved performance of an optical signal transmission system (1), allowing its operation at a lower OSNR, thus extending the distance between optical amplifier stages while relying on less expensive standard components in the transmission link (4, 4', 4").
摘要翻译：一种用于发送包括载波的至少两个边带（LSB，USB）的调制光信号（S）的方法，所述至少两个边带（LSB，USB）经由发射机（2）经由光传输链路（4,4'，4“）包括以下步骤：将光信号（S）分离成对称于载波波长（»C）的两个光学单边带信号（SB1，SB2），镜像两个边带信号（SB2）到另一单边带信号（SB1）的频谱位置，并且在接收机（3）进行光电转换之前组合两个边带信号（SB1，SB2），为此，根据另一方面本发明的一个信号处理单元（5）包括将发射信号（S）的边带（SB2）之一反射到另一个（SB1）的波长镜（7），因此本发明的方法实现了光信号传输系统（1），允许其在较低的操作 OSNR，因此在传输链路（4,4'，4“）中依靠较便宜的标准组件来扩展光放大器级之间的距离。

90. 发明公开

EP1723736A1 OPTICAL MODULATION CONVERTER AND METHOD FOR CONVERTING THE MODULATION FORMAT OF AN OPTICAL SIGNAL 审中-公开
标题翻译：光调制转换器和方法的将光信号变换调制格式
公开(公告)号：EP1723736A1
公开(公告)日：2006-11-22
申请号：EP05729762.4
申请日：2005-03-08
申请人： Marconi Communications SPA
发明人： D'ERRICO, Antonio , CIARAMELLA, Ernesto
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/676
摘要： An optical modulation converter (10) for converting the modulation format of an optical input signal is characterized by a birefringent medium (14), polarization maintaining fibre, with a selected differential group delay between its two main axes of symmetry through which the optical input signal is passed to be separated into two optical components each travelling along one of the main axes of the medium at a different group velocity to thereby convert the modulation format of the input signal. By appropriate selection of the differential group delay imparted by the medium relative to the bit rate of the input signal and by appropriately presenting the input signal relative to the main axes of the medium conversion between different modulation formats can be achieved. These include direct conversion from optical DPSK (Differential Phase Shift Keying) to POLSK (POLarization Shift Keying), DPSK to IM (Intensity-Modulated) through an intermediated conversion to POLSK, POLSK to IMDD (Intensity Modulation Direct Detection), and IM to POLSK.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式