专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明公开

EP4244999A1 CALIBRATING A RAMAN AMPLIFIER BY MAXIMIZING GAIN AND MINIMIZING INTERMODULATION EFFECTS 审中-公开
公开(公告)号：EP4244999A1
公开(公告)日：2023-09-20
申请号：EP22847310.4
申请日：2022-12-06
申请人： Ciena Corporation
发明人： AL SAYEED, Choudhury, A.
IPC分类号： H04B10/2563 , H04B10/291 , H04B10/294

72. 发明公开

EP1256193A4 USE OF PHASE SHIFT KEYED COHERENT OPTICAL SIGNALING IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL FIBER LINKS 审中-公开
标题翻译：相位跳变使用调制的相干光信令与波分复用光纤连接
公开(公告)号：EP1256193A4
公开(公告)日：2006-08-16
申请号：EP01946995
申请日：2001-01-11
申请人： LOCKHEED CORP
发明人： SPICKERMANN RALPH
IPC分类号： H04B10/2513 , H04B10/2563 , H04B10/61
CPC分类号： H04B10/2563 , H04B10/2513 , H04B10/612
摘要： A wavelength division multiplexed (23) fiber optic link (40) including a phase shift keyed coherent transmitter (20) and receiver (30) coupled together by a way of periodic optically amplified (42, 44) fiber link. The transmitter has a plurality of phase shift keyed modulators (22) that each receive data for transmission over the fiber link. A separate laser (21) is coupled to each of the modulators (22) whose respective output beams are modulated with the data for transmission. Outputs of the modulators are input to a wavelength division multiplexer (23) that multiplexes the phase shift keyed modulated outputs of the phase shift keyed modulators for transmission over the fiber link. The receiver (30) includes an optical power splitter (31) or wavelength division multiplexed demultiplexer (32) that produces a plurality of data channels. A coherent optical demodulator (33) demodulates the plurality of data channels to produce data for each data channel. A corresponding optical signaling method is also disclosed.

73. 发明申请

WO02015450A1 OPTICAL TRANSMISSION SYSTEM 审中-公开
标题翻译：光传输系统
公开(公告)号：WO02015450A1
公开(公告)日：2002-02-21
申请号：PCT/IB2001/001709
申请日：2001-08-02
IPC分类号： G02B6/02 , H04B10/2563 , H04J14/00 , H04J14/02 , H04B10/18
CPC分类号： H04B10/2563 , H04J14/0224
摘要： A device wavelength division multiplex optical transmission system has the wavelengths of the optical carriers arranged so as to reduce the effect of in-band crosstalk which results from unwanted side bands to the carriers. Possible wavelengths are placed on an equally spaced wavelength grid, and the transmitted channels are organised into groups of three each of which is placed on four adjacent grid positions, one of which is unused. Adjacent groups are spaced apart by two or more vacant grid positions.
摘要翻译：一种器件波分复用光传输系统具有光载波的波长，其布置为减少由对载波的不期望的边带带来的带内串扰的影响。可能的波长被放置在等间隔的波长网格上，并且所发射的信道被组织成三组，每组三个放置在四个相邻的网格位置，其中一个不使用。相邻组间隔开两个或多个空格格位置。

74. 发明申请

WO99044298A2 METHOD AND APPARATUS FOR IMPROVING SPECTRAL EFFICIENCY IN WAVELENGTH DIVISION MULTIPLEXED TRANSMISSION SYSTEMS 审中-公开
标题翻译：改进波分复用传输系统中光谱效率的方法和装置
公开(公告)号：WO99044298A2
公开(公告)日：1999-09-02
申请号：PCT/US1999/004327
申请日：1999-02-26
IPC分类号： H04B10/2507 , H04B10/2563 , H04B10/50 , H04B10/532 , H04J14/02 , H04J14/06 , H04B
CPC分类号： H04B10/2507 , H04B10/2563 , H04B10/503 , H04B10/505 , H04B10/5051 , H04B10/506 , H04B10/532 , H04J14/02 , H04J14/06
摘要： A method and apparatus is provided for transmitting an optical signal. The method includes the step of generating an optical signal that includes a plurality of optical channels, which are sequentially numbered from 1 to N from lowest to highest wavelength. A state-of-polarization of predetermined odd-numbered channels is oriented to be substantially orthogonal to a state of polarization of predetermined even-numbered channels by directing the predetermined odd-numbered channels and the predetermined even-numbered channels through orthogonally polarizing inputs of a polarization coupler. The odd-numbered channels and the even-numbered channels may be directed through first and second wavelength combiners, respectively, prior to orienting their states of polarization. The orthogonal relationship between the states of polarization of odd and even-numbered channels advantageously limits the four-wave mixing products that can be generated in the optical transmitter and the optical transmission path to which it is typically coupled.
摘要翻译：提供一种发送光信号的方法和装置。该方法包括产生包括多个光通道的光信号的步骤，它们从最低到最高波长从1到N顺序编号。通过将预定的奇数通道和预定的偶数通道通过正交通道的正交极化输入引导，预定的奇数通道的极化状态被定向为基本上与预定偶数通道的极化状态正交偏振耦合器。在定向其偏振状态之前，奇数通道和偶数通道可分别被引导通过第一和第二波长组合器。奇数和偶数通道的极化状态之间的正交关系有利地限制了可以在光发射器中产生的四波混频产物和通常耦合到其中的光传输路径。

75. 发明专利

RU2663179C2 СПОСОБ ИЗМЕРЕНИЯ ОТНОШЕНИЯ ОПТИЧЕСКОГО СИГНАЛА К ШУМУ ПРИ ЧЕТЫРЕХВОЛНОВОМ СМЕШЕНИИ В ВОЛОКОННО-ОПТИЧЕСКИХ СИСТЕМАХ ПЕРЕДАЧИ С ЧАСТОТНЫМ РАЗДЕЛЕНИЕМ СИГНАЛОВ 未知
公开(公告)号：RU2663179C2
公开(公告)日：2018-08-02
申请号：RU2017100494
申请日：2017-01-09
申请人： FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA SIBIRSKIJ G
发明人： VARDANYAN VARDGES ANDRANIKOVICH
IPC分类号： H04B10/2563
摘要： Изобретениеотноситсяк техникеоптическойсвязии можетиспользоватьсяв волоконно-оптическихсистемахпередачис частотно-разделеннымиканалами. Техническийрезультатсостоитв решениитехническойпроблемыпредсказанияшумачетырехволновогосмешенияв каналес помощьюпередачипооптическомуволокну. Дляэтогопредложенчетырехканальныйсигналдляизмерения. Частотныйинтервалмеждуканаламинеравномерный: 3Δf, 4Δf, 5Δf, гдеΔf - частотныйинтервалмеждуканаламидляМ-канальнойсистемы. Коэффициентусиленияоптическихусилителейнастраиваюттакимобразом, чтобыв волокнеподдерживалсяуровеньоптическоймощности, соответствующийпередачеМ-канальногооптическогосигнала. Наприемнойсторонеизмеряетсяуровеньмощностив одномизчетырех «активных» каналови уровеньмощностишумав одномиз «пассивных» каналов, вкоторыйпопадаюткомбинационныечастотычетырехволновогосмешения. Рассчитываетсяотношениеоптическогосигналак шумудлячетырехканальногосигнала, используяполученнуювеличину, рассчитываютотношениеоптическогосигналак шумудлясистемыпередачис М-каналами. 3 ил.

76. 发明专利

BRPI0405497B1 "pré-amplificador óptico híbrido, formado por um amplificador de fibra dopada e um amplificador paramétrico" 未知
公开(公告)号：BRPI0405497B1
公开(公告)日：2018-02-14
申请号：BRPI0405497
申请日：2004-11-26
申请人： FUND CPQD CENTRO DE PESQUISA E DESENVOLVIMENTO EM TELECOMUNICACOES , UNIV ESTADUAL CAMPINAS UNICAMP
发明人： ANDRÉ GUIMARÃES DOS SANTOS , FULVIO ANDRES CALLEGARI , FÁBIO DONATI SIMÕES , HUGO LUÍS FRAGNITO , JORGE DIEGO MARCONI , JOSÉ MANUEL CHÁVEZ BOGGIO
IPC分类号： G02B6/12 , H01S3/067 , H01S3/30 , H04B10/25 , H04B10/2563
摘要： "técnica de recepção de sinais ópticos através de um pré-amplificador óptico híbrido, formado por um amplificador de fibra dopada e um amplificador paramétrico". a presente invenção refere-se a uma nova técnica de recepção de sinais digitais ópticos em altas taxas, para utilização em sistemas de telecomunicações por fibras ópticas, através de um pré-amplificador óptico híbrido utilizando amplificação paramétrica. esta técnica poderia ser utilizada como um 'upgrade' da tecnologia de amplificação e recepção utilizada atualmente na fabricação de hardware para sistemas de telecomunicações ópticas por fibras ópticas. esta nova técnica de recepção de sinais ópticos através de um pré-amplificador óptico híbrido utilizando amplificação paramétrica descreve o uso em conjunto de um 1p-fopa e um afde como técnica de recepção de sinais ópticos. consiste em inserir um amplificador paramétrico, montado com um ou dois lasers de bombeio, de maneira que este funcione como um segundo estágio de um pré-amplificador afde. assim, o afde e o fopa podem ser considerados como um único pré-amplificador, podendo ser montados como um único dispositivo fotônico ou como dois dispositivos independentes ligados em serie. ressaltamos que os melhores resultados ocorrem para baixos valores de potência do sinal, o que torna o conjunto afde+fopa um pré-amplificador otimizado para sistemas de altas taxas e com pouca margem de segurança na potência dos sinais.

77. 发明专利

AT553558T 未知
公开(公告)号：AT553558T
公开(公告)日：2012-04-15
申请号：AT99936146
申请日：1999-02-26
申请人： TYCO ELECTRONICS SUBSEA COMM
发明人： BERGANO NEAL , DAVIDSON CARL
IPC分类号： H04J14/06 , H04B10/2507 , H04B10/2563 , H04B10/50 , H04B10/532 , H04J14/02
摘要： A method and apparatus is provided for transmitting an optical signal. The method includes the step of generating an optical signal that includes a plurality of optical channels, which are sequentially numbered from 1 to N from lowest to highest wavelength. A state-of-polarization of predetermined odd-numbered channels is oriented to be substantially orthogonal to a state of polarization of predetermined even-numbered channels by directing the predetermined odd-numbered channels and the predetermined even-numbered channels through orthogonally polarizing inputs of a polarization coupler. The odd-numbered channels and the even-numbered channels may be directed through first and second wavelength combiners, respectively, prior to orienting their states of polarization. The orthogonal relationship between the states of polarization of odd and even-numbered channels advantageously limits the four-wave mixing products that can be generated in the optical transmitter and the optical transmission path to which it is typically coupled.

78. 发明专利

DE60133205T2 未知
公开(公告)号：DE60133205T2
公开(公告)日：2009-04-02
申请号：DE60133205
申请日：2001-08-02
申请人： ERICSSON AB
发明人： POTI LUCA , BOGONI ANTONELLA
IPC分类号： G02B6/02 , H04J14/02 , H04B10/2563 , H04J14/00

79. 发明专利

CA2419539C OPTICAL TRANSMISSION SYSTEM 未知
公开(公告)号：CA2419539C
公开(公告)日：2009-03-10
申请号：CA2419539
申请日：2001-08-02
申请人： MARCONI COMM SPA
发明人： POTI LUCA , BOGONI ANTONELLA
IPC分类号： G02B6/02 , H04J14/02 , H04B10/2563 , H04J14/00
摘要： A device wavelength division multiplex optical transmission system has the wavelengths of the optical carriers arranged so as to reduce the effect of i n- band crosstalk which results from unwanted side bands to the carriers. Possible wavelengths are placed on an equally spaced wavelength grid, and th e transmitted channels are organised into groups of three each of which is placed on four adjacent grid positions, one of which is unused. Adjacent groups are spaced apart by two or more vacant grid positions.

80. 发明专利

DE60315114T2 未知
公开(公告)号：DE60315114T2
公开(公告)日：2008-04-10
申请号：DE60315114
申请日：2003-11-25
申请人： FUJITSU LTD
发明人： MIURA AKIRA , NAITO TAKAO , KATAGIRI TORU
IPC分类号： H04B10/2507 , H04J14/02 , H04B10/2513 , H04B10/2537 , H04B10/2563
摘要： An object of the invention is to provide a wavelength allocation method of signal light, which is capable of consecutively allocating signal lights efficiently on wavelength grids, while suppressing degradation in transmission characteristic due to the generation of four-wave mixed light in an optical transmission path. To this end, according to the wavelength allocation method of signal light, the consecutive allocation wavelength number of signal lights to be allocated consecutively on the wavelength grids, is set to different values according to wavelength bands, based on wavelength dependence of a generation amount of four-wave mixed light on the optical transmission path, and the signal lights are allocated consecutively on the wavelength grids in accordance with this consecutive allocation wavelength number, but the signal light is not allocated on at least one wavelength grid adjacent to the wavelength grids on which a group of signal light are allocated consecutively.

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