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41. 发明公开

EP1513273A2 Method and system for automatic feedback control for fine tuning a delay interferometer 审中-公开
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：EP1513273A2
公开(公告)日：2005-03-09
申请号：EP04019922.6
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
摘要： A method for receiving an optical signal is included where 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 monitored 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.
摘要翻译：包括一种用于接收光信号的方法，其中，到进入信号被分成第一部分和第二部分。的相对延迟在所述第一部分和第二部分，其被光学干涉以产生至少一个干扰信号之间引起。被监视的信号的质量标准中的至少基于该至少一个干扰信号被监测，以便并基于所述质量标准的相对延迟可被调整。

42. 发明公开

EP0967743A2 Method and apparatus for optical frequency demodulation of an optical signal using interferometry 审中-公开
标题翻译：用于通过干涉法来的光信号的光频率解调的方法和装置
公开(公告)号：EP0967743A2
公开(公告)日：1999-12-29
申请号：EP99304932.9
申请日：1999-06-23
申请人： NORTEL NETWORKS CORPORATION
发明人： Kim, Kinhong , Richardson, Bruce
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/67 , H04B10/676
摘要： The present invention provides an improved optical frequency demodulation technique for extracting overhead information from an optical channel signal carrying both high bit rate payload and low rate overhead data. The invention makes use of asymmetrical Mach-Zehnder interferometry (AMZI) in an optical frequency demodulator to efficiently extract the overhead information from the optical channel signal by frequency discrimination without necessitating a complete demodulation of the optical channel signal. By comparison to existing demodulation schemes, the invention provides an all-optical low cost, high gain technique for recovering the overhead data which improves the payload signal-to-noise ratio and enhance performance.
摘要翻译：对本发明的改进的光学频率解调技术提供了对从开销来承载这两种高比特率和有效载荷低速率开销数据光信道信号中提取信息。本发明使得在使用非对称的马赫 - 曾德尔干涉（暗洗）中的光学频率解调器，以有效地提取从光信道信号由鉴频开销信息，而不需要的光信号信道的一个完整的解调。通过比较现有的解调方案，本发明提供一种全光低成本，用于回收这改善了有效载荷信噪比和增强性能开销数据高增益的技术。

43. 发明授权

EP0445232B1 FIBER OPTIC LINK NOISE MEASUREMENT AND OPTIMIZATION SYSTEM 失效
标题翻译：噪声测量光纤连接优化系统。
公开(公告)号：EP0445232B1
公开(公告)日：1994-12-14
申请号：EP90901281.7
申请日：1989-11-21
申请人： HONEYWELL INC.
发明人： NELSON, Larry, A. , WOODS, James, W.
IPC分类号： H04B10/12
CPC分类号： H04B10/0799 , H04B10/0793 , H04B10/07953 , H04B10/676
摘要： Apparatus for optimizing system performance for use in a transmission and signal distribution system which includes at least one fiber optic link having transmission and receiving means. The apparatus includes apparatus for measuring noise signals in each fiber optic link and apparatus for generating system performance data corresponding to the noise signals measured by the noise measurement apparatus.

44. 发明公开

EP2431805A1 OPTICAL DEMODULATOR 有权
标题翻译：光解调器
公开(公告)号：EP2431805A1
公开(公告)日：2012-03-21
申请号：EP10832657.0
申请日：2010-11-25
申请人： Huawei Technologies Co., Ltd.
发明人： FU, Zhenghua , DAI, Xiquan , CHENG, Yongjing
IPC分类号： G02F2/00 , H04B10/158
CPC分类号： H04B10/11 , H04B10/676
摘要： The embodiments of the present invention provides an optical demodulator, which includes a first reflective mirror, a second reflective mirror, a third reflective mirror, and an optical splitter. The optical splitter is configured to: split input light for the first time; split for the second time a first path of light reflected back by the first reflective mirror, where two paths of light obtained by splitting the first path of light are emitted to the first reflective mirror and the third reflective mirror respectively, split for the second time a second path of light reflected back by the second reflective mirror, where two paths of light obtained by splitting the second path of light are emitted to the first reflective mirror and the third reflective mirror respectively; and split two paths of light that are reflected back by the first reflective mirror and the third reflective mirror respectively and obtained by splitting the first path of light, and then make the split light to interfere with each other, so as to obtain and emit two paths of light with different phases, and split two paths of light that are reflected back by the first reflective mirror and the third reflective mirror respectively and obtained by splitting the second path of light, and then make the split light to interfere with each other, so as to obtain and emit two paths of light with different phases.

45. 发明公开

EP2393224A1 Method and apparatus for synthesizing and correcting phase distorsions in ultra-wide bandwith optical waveforms 有权
标题翻译：用于在具有超宽带光学波形相位失真的合成和校正的方法和装置
公开(公告)号：EP2393224A1
公开(公告)日：2011-12-07
申请号：EP11159241.6
申请日：2011-03-22
申请人： Raytheon Company
发明人： Klotz, Matthew J. , Bulot, Jean-Paul
IPC分类号： H04B10/08 , H04B10/158
CPC分类号： H04B10/073 , H04B10/676
摘要： In accordance with various aspects of the disclosure, a method, an apparatus and a system for characterizing and compensating for deterministic phase nonlinearities and distortion inherent in radio frequency and optical components utilized to synthesize a single sideband suppressed carrier optical waveform in the presence of random phase noise generated by an optical carrier source is disclosed. The method comprises mixing a modulated optical signal with a continuous wave optical signal in an optical coupler; optically heterodyning the mixed signal output from the optical coupler in a detector to produce a radio frequency waveform; and analyzing the produced radio frequency waveform in a processor based on a phase history of a preselected continuous wave signal to measure distortion characteristics of the radio frequency modulated optical signal.
摘要翻译：在本公开中，一种方法的各个方面，对设备和用于表征和补偿用在随机相位的存在下，以合成一个单一的带抑制载波的光波形确定性相非线性和在射频固有失真和光学部件的系统雅舞蹈在光载波源产生由噪声游离缺失盘。该方法包括一个调制光信号与在光耦合装置的连续波的光信号混合; 光学外差从光耦合器输出的混合信号中的检测器，以产生一射频波形; 和分析的基础上预先选择的连续波信号的相位历史的处理器所产生的射频波形，以测量调制的光信号的射频的失真特性。

46. 发明授权

EP1056230B1 Feed forward optical frequency/phase demodulator 有权
标题翻译：调节正向光频率/相位解调器
公开(公告)号：EP1056230B1
公开(公告)日：2008-04-23
申请号：EP00110951.1
申请日：2000-05-25
申请人： NORTHROP GRUMMAN CORPORATION
发明人： Rollins, David L.
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/67 , H04B10/676

47. 发明授权

EP1060583B1 OPTICAL LINKS 有权
标题翻译：光纤连接
公开(公告)号：EP1060583B1
公开(公告)日：2002-09-04
申请号：EP99904967.9
申请日：1999-02-05
申请人： Bookham Technology PLC
发明人： CARTER, Andrew Cannon , EDGE, Colin
IPC分类号： H04B10/152
CPC分类号： H04B10/697 , H04B10/676
摘要： An optical link (10) is described for transmitting a microwave signal (30) in modulated optical form over an optical fibre (24). The optical link (10) has a transmitter (12) and a receiver (18). The transmitter (12) splits and converts the microwave signal (30) into two separate optical signals (34 and 36), each of which represent either the positive varying part of the microwave signal (30) or the negative varying part of the microwave signal (30). The receiver (18) combines the two separate optical signals (34 and 36) and converts them back into the microwave signal (30).

48. 发明公开

EP0967743A3 Method and apparatus for optical frequency demodulation of an optical signal using interferometry 审中-公开
标题翻译：用于通过干涉法来的光信号的光频率解调的方法和装置
公开(公告)号：EP0967743A3
公开(公告)日：2002-01-09
申请号：EP99304932.9
申请日：1999-06-23
申请人： Nortel Networks Limited
发明人： Kim, Kinhong , Richardson, Bruce
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/67 , H04B10/676
摘要： The present invention provides an improved optical frequency demodulation technique for extracting overhead information from an optical channel signal carrying both high bit rate payload and low rate overhead data. The invention makes use of asymmetrical Mach-Zehnder interferometry (AMZI) in an optical frequency demodulator to efficiently extract the overhead information from the optical channel signal by frequency discrimination without necessitating a complete demodulation of the optical channel signal. By comparison to existing demodulation schemes, the invention provides an all-optical low cost, high gain technique for recovering the overhead data which improves the payload signal-to-noise ratio and enhance performance.

49. 发明公开

EP0930485A2 Vorrichtung zur Erfassung oder Erzeugung optischer Signale 有权
公开(公告)号：EP0930485A2
公开(公告)日：1999-07-21
申请号：EP98122789.5
申请日：1998-12-01
申请人： Weitzel, Thilo
发明人： Weitzel, Thilo
IPC分类号： G01J3/453
CPC分类号： H04B10/676 , G01J3/453
摘要： Die vorliegende Erfindung betrifft eine Vorrichtung zur Erfassung optischer Signale mit Mitteln zur Erzeugung wenigstens eines Referenz-Lichtstrahls, der gegenüber dem zu erfassenden optischen Signal frequenzverschoben und/oder -moduliert oder phasenverschoben und/oder -moduliert und/oder zeitverschoben ist, mit Mitteln, mit denen das zu erfassende optische Signal und/oder der oder die Referenz-Lichtstrahlen derart ausrichtbar sind, daß sie zur Interferenz gebracht werden können, sowie mit mindestens einem Detektor mit Demodulator, durch den eine Amplitudenmodulation nachweisbar ist. Eine hohe spektrale Auflösung der Vorrichtung wird auch bei Einsatz kleiner optischer Elemente dadurch erreicht, daß mindestens ein wellenlängenabhängiges Element vorgesehen ist, durch das der oder die Winkel der zur Interferenz gebrachten Lichtstrahlen in Abhängigkeit von der Wellenlänge veränderbar sind sowie, daß mindestens einer der Detektoren derart ausgeführt ist oder derart im Zusammenhang mit einem Demodulator und/oder optischen Elementen steht, daß eine zeitliche und/oder räumliche Modulation der Intensität bezogen auf den gesamten oder Teile des detektierten Strahlquerschnitts meßbar ist. Die Erfindung betrifft ferner eine Vorrichtung zur Erzeugung optischer Signale durch Modulation optischer Träger sowie die Verwendung einer erfindungsgemäßen Vorrichtung als optischer Empfänger oder optischer Modulator oder als Spektrometer.
摘要翻译：与要确定的光信号相比，该系统产生参考光束，其被频移，调制，时移或相移。提供至少一个与波长相关的设备（14），待确定的光束和参考光束以这样的方式对准，使得它们可以被施加用于干扰。至少一个检测器（40）与解调器（50）或其它光学元件一起布置，使得可以测量与所检测的辐射横截面的全部或部分相关的强度的时间或空间调制。

50. 发明公开

EP0898389A2 Optical transmission system, optical transmitter and optical receiver used therefor for transmission of an angle-modulated signal 有权
标题翻译：一种光传输系统，光发射器和光接收器，用于发送一角度调制信号
公开(公告)号：EP0898389A2
公开(公告)日：1999-02-24
申请号：EP98115815.7
申请日：1998-08-21
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Fuse, Masaru , Ohya, Jun
IPC分类号： H04B10/155 , H04B10/158
CPC分类号： H04B10/676 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/69
摘要： An angle modulating portion 1 converts an inputted electrical signal into a predetermined angle-modulated signal. An optical modulating portion 2 converts the angle-modulated signal outputted from the angle modulating portion 1 into an optical-modulated signal and sends the optical-modulated signal to an optical waveguide portion 3. An interference portion 6 separates the optical-modulated signal transmitted through the optical waveguide portion 3 into two optical signals having predetermined difference in propagation delay and then combines the optical signals. An optical/electrical converting portion 4 subjects the combined optical signal to homodyne detection, to acquire a demodulated signal of the original electrical signal and output the electrical signal. That is, the interference portion 6 and the optical/electrical converting portion 4 constitute a delayed detection system of an optical signal, so that the delayed detection system performs conversion processing of an optical signal into an electrical signal and angle demodulation processing simultaneously. In this way, a signal with a wide-band and a high-frequency can be acquired by demodulation without electrical part for wide-bands and high-frequencies.
摘要翻译：调制部1的角转换为电信号输入到一个预定的角度调制信号。光学调制部分2的角度调制信号从角度调制部分1进入到光调制信号的输出的转换，并在光波导路部分3的光调制信号发送到一个干涉部分6分离的光调制信号反mitted通过光波导路部分3成两个光信号具有预定传播延迟差，然后组合的光信号。光/电转换部分4对组合的光信号到零差检波，以获得原始电信号，并且输出电信号的解调信号。即，干涉部6和光/电转换部分4构成的光信号的延迟检测系统，所以没有延迟检测系统执行的光信号的转换加工成电信号，以和角度解调处理同时。以这种方式，具有宽带和高频率的信号可以通过解调，而不对宽波段和高频电部分获得的。

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