专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

121. 发明授权

EP2892167B1 SPACE DIVISION MULTIPLEXING APPARATUS INCLUDING MULTI-CORE FIBER AND SELFHOMODYNE DETECTION METHOD 有权
公开(公告)号：EP2892167B1
公开(公告)日：2018-10-17
申请号：EP13833085.7
申请日：2013-03-22
申请人： National Institute of Information and Communications Technology
发明人： KAWANISHI, Tetsuya , AWAJI, Yoshinari , PUTTNAM, Ben , KANNO, Atsushi
IPC分类号： H04B10/63 , G02B6/02 , G02B6/04 , H04J14/00 , H04J14/04 , H04J14/06 , H04B10/25 , H04B10/61
CPC分类号： H04B10/2504 , G02B6/02 , G02B6/02042 , G02B6/04 , H04B10/61 , H04B10/63 , H04J14/00 , H04J14/04 , H04J14/06
摘要： To provide a self-homodyne detection communication system capable of using a space-division multiplexing signal as a signal for communication. The present invention relates to a space-division multiplexing apparatus 12 including a multi-core fiber 11 having multiple cores. The space-division multiplexing apparatus 12 uses cores other than a core 13 for self-homodyne detection among the multiple cores included in the multi-core fiber 11 as cores 16 for communication. The space-division multiplexing apparatus is configured to include a pilot-tone guiding unit 14 and a self-homodyne detection unit 15.

122. 发明授权

EP2681598B1 INTRA-LINK SPATIAL-MODE MIXING IN AN UNDER-ADDRESSED OPTICAL MIMO SYSTEM 有权转让
公开(公告)号：EP2681598B1
公开(公告)日：2018-08-22
申请号：EP12709734.3
申请日：2012-02-28
申请人： Alcatel Lucent
发明人： WINZER, Peter, J. , FOSCHINI, Gerard, J.
IPC分类号： H04B10/2581 , H04J14/04 , G02B6/14
CPC分类号： G02B6/14 , H04B10/2581 , H04J14/04 , H04L1/004
摘要： In a representative embodiment, a multipath channel and an optical subcarrier modulation scheme are designed in concert to cause different modulated subcarriers of the optical communication signal to become substantially uncorrelated over the aggregate signal bandwidth. Provided that the employed FEC code has sufficient error-correcting capability for average channel conditions, breakdowns in the operation of the FEC decoder and the corresponding system outages can substantially be avoided.

123. 发明公开

EP3312647A4 POLARIZATION MODE CONVERTER 有权
公开(公告)号：EP3312647A4
公开(公告)日：2018-07-04
申请号：EP15898038
申请日：2015-07-16
申请人： HUAWEI TECH CO LTD
发明人： TU XIN
IPC分类号： G02B6/126 , G02B6/14 , H04J14/04
CPC分类号： G02B6/126 , G02B6/1228 , G02B6/125 , G02B6/14 , G02B6/2726 , G02B6/2766 , G02B6/2773 , G02B2006/12097 , G02B2006/12152 , H04J14/04
摘要： A polarization mode converter is provided and includes a rectangular waveguide (101), a first tapered waveguide (102), and a second tapered waveguide (103). A height of the rectangular waveguide (101) is a first height H1. A side of the first tapered waveguide (102) is connected to the rectangular waveguide (101). A width of the first tapered waveguide (102) changes gradually. A height of the first tapered waveguide (102) is a second height H2, and the second height H2 is less than the first height H1. The second tapered waveguide (103) is unconnected to the rectangular waveguide (101), and the second tapered waveguide (103) is unconnected to the first tapered waveguide (102). A width of the second tapered waveguide (103) changes gradually. A height of the second tapered waveguide (103) is the first height H1. A distance between a first end of the second tapered waveguide (103) and the rectangular waveguide (101) is a first distance, a distance between a second end of the second tapered waveguide (103) and the rectangular waveguide (101) is a second distance, and the second distance is greater than the first distance. The first tapered waveguide (102) is located between the rectangular waveguide (101) and the second tapered waveguide (103).

124. 发明公开

EP3332497A1 OPTICAL DEVICE FOR DEMULTIPLEXING AND MULTIPLEXING A PLURALITY OF CHANNELS WITH DIFFERENT WAVELENGTH AND DIFFERENT ORBITAL ANGULAR MOMENTUM AND OPTICAL COMMUNICATION SYSTEM THEREOF 审中-公开
公开(公告)号：EP3332497A1
公开(公告)日：2018-06-13
申请号：EP16766619.7
申请日：2016-08-02
申请人： Strand S.r.l. , Università degli Studi di Padova
发明人： ROMANATO,Filippo , RUFFATO, Gianluca
IPC分类号： H04J14/02 , H04J14/04 , G02B6/12
CPC分类号： H04J14/02 , G02B6/29311 , H04J14/04
摘要： It is disclosed an optical device (1) for demultiplexing a plurality of channels with different wavelength (λ1, λ2, λ3) and different orbital angular momentum (I1, I2, I3). The device comprises a first diffractive optical element (1 -1 ) for performing a wavelength division demultiplexing and a second diffractive optical element (1 -2) for performing a mode demultiplexing. The first diffractive optical element (1 -1) is configured to receive a multiplexed incident optical beam (F_i_mux) carrying the plurality of channels having a plurality of different values of the wavelength (λ1, λ2, λ3) and a plurality of different values of the orbital angular momentum (I1, I2, I3), and is configured to generate at the output, as a function of the multiplexed incident optical beam (F_i_mux), a plurality of first free space circular optical vortices (FO1_SL, FO2_SL, FO3_SL) having respective wavefronts with different radii of curvature which depend on the plurality of different values of the wavelength, wherein each of the first free space circular optical vortices carries said plurality of different values of the orbital angular momentum. The second diffractive optical element (1 -2) comprises a plurality of zones (Α1, A2, A3) equal to the plurality of different values (λ1, λ2, λ3) of the wavelength. Each zone is configured to receive at the input a respective first free space circular optical vortex (FO1_SL) carrying said plurality of different values of the orbital angular momentum, and is configured to generate at the output, as a function of the respective first free space circular optical vortex (FO1_SL), a plurality of second free space circular optical vortices (FO1.1_SL, FO1.2_SL, FO1.3_SL) oriented in different directions in the space which depend on the plurality of different values of the orbital angular momentum, wherein the plurality of the second free space circular optical vortices generated by the respective zone carries a same value of the wavelength and a different value of the orbital angular momentum.

125. 发明公开

EP3312647A1 POLARIZATION MODE CONVERTER 有权
标题翻译：极化模式转换器
公开(公告)号：EP3312647A1
公开(公告)日：2018-04-25
申请号：EP15898038.3
申请日：2015-07-16
申请人： Huawei Technologies Co., Ltd.
发明人： TU, Xin
IPC分类号： G02B6/126
CPC分类号： G02B6/126 , G02B6/1228 , G02B6/125 , G02B6/14 , G02B6/2726 , G02B6/2766 , G02B6/2773 , G02B2006/12097 , G02B2006/12152 , H04J14/04
摘要： A polarization mode converter is provided and includes a rectangular waveguide (101), a first tapered waveguide (102), and a second tapered waveguide (103). A height of the rectangular waveguide (101) is a first height H1. A side of the first tapered waveguide (102) is connected to the rectangular waveguide (101). A width of the first tapered waveguide (102) changes gradually. A height of the first tapered waveguide (102) is a second height H2, and the second height H2 is less than the first height H1. The second tapered waveguide (103) is unconnected to the rectangular waveguide (101), and the second tapered waveguide (103) is unconnected to the first tapered waveguide (102). A width of the second tapered waveguide (103) changes gradually. A height of the second tapered waveguide (103) is the first height H1. A distance between a first end of the second tapered waveguide (103) and the rectangular waveguide (101) is a first distance, a distance between a second end of the second tapered waveguide (103) and the rectangular waveguide (101) is a second distance, and the second distance is greater than the first distance. The first tapered waveguide (102) is located between the rectangular waveguide (101) and the second tapered waveguide (103).
摘要翻译：提供偏振模转换器，并且包括矩形波导（101），第一锥形波导（102）和第二锥形波导（103）。矩形波导（101）的高度是第一高度H1。第一锥形波导（102）的一侧连接到矩形波导（101）。第一锥形波导（102）的宽度逐渐变化。第一锥形波导（102）的高度是第二高度H2，并且第二高度H2小于第一高度H1。第二锥形波导（103）不连接到矩形波导（101），第二锥形波导（103）不连接到第一锥形波导（102）。第二锥形波导（103）的宽度逐渐变化。第二锥形波导（103）的高度是第一高度H1。第二锥形波导（103）的第一端与矩形波导（101）之间的距离为第一距离，第二锥形波导（103）的第二端与矩形波导（101）之间的距离为第二距离距离，并且第二距离大于第一距离。第一锥形波导（102）位于矩形波导（101）和第二锥形波导（103）之间。

126. 发明公开

EP3273624A1 JOINT SPACE-TIME AND FEC CODING IN MULTI-MODE FIBER OPTICAL TRANSMISSION SYSTEMS 审中-实审转让
标题翻译：多模光纤传输系统中的联合时空和FEC编码
公开(公告)号：EP3273624A1
公开(公告)日：2018-01-24
申请号：EP16305926.4
申请日：2016-07-18
申请人： Institut Mines Telecom
发明人： REKAYA BEN-OTHMAN, Ghaya , JAOUEN, Yves , AMHOUD, El-Mehdi
IPC分类号： H04B10/2581 , H04B10/516 , H04J14/04
CPC分类号： H04L1/0065 , H04B10/2581 , H04B10/516 , H04J14/04 , H04L1/0054 , H04L5/0003
摘要： Embodiments of the invention provide an optical transmitter configured to transmit a data sequence over at least two spatial propagation modes through an optical transmission channel in a multi-mode optical fiber transmission system, the transmission system being associated with a predefined value of a mode-dependent loss, wherein the optical transmitter comprises:
- a forward error correcting code encoder (22) configured to encode said data sequence into a codeword vector by applying at least one error correcting code;
- a modulator (23) configured to determine a set of modulated symbols by applying a modulation scheme to said codeword vector; and
- a Space-Time encoder (24) configured to determine a codeword matrix by applying a Space-Time code to said set of modulated symbols.
摘要翻译：本发明的实施例提供了一种光发射机，其被配置为通过多模光纤传输系统中的光传输信道在至少两个空间传播模式上传输数据序列，该传输系统与模式相关的预定义值相关联其中所述光发射机包括： - 前向纠错码编码器（22），被配置为通过应用至少一个纠错码将所述数据序列编码为码字向量; - 调制器（23），被配置为通过将调制方案应用于所述码字矢量来确定调制符号的集合; 以及 - 空时编码器（24），被配置为通过将空时码应用于所述调制符号集合来确定码字矩阵。

127. 发明授权

EP2545400B1 MULTICORE FIBERS AND ASSOCIATED STRUCTURES AND TECHNIQUES 有权转让
标题翻译：多色纤维及相关结构和技术
公开(公告)号：EP2545400B1
公开(公告)日：2017-12-06
申请号：EP11754102.9
申请日：2011-03-10
申请人： Ofs Fitel Llc, A Delaware Limited Liability Company
发明人： FINI, John, Michael , TAUNAY, Thierry, Franck , YAN, Man, F. , ZHU, Benyuan
IPC分类号： G02B6/02 , H04J14/02 , G02B6/42 , H04J14/00 , G02B6/036 , H04J14/04
CPC分类号： G02B6/02042 , G02B6/0365 , H04J14/04
摘要： A multicore fiber comprises a plurality of cores extending along the length of a fiber body. Each of the cores is surrounded by a cladding. The plurality of cores and surrounding cladding provide respective index variations, so as to form a respective plurality of waveguides for conducting parallel data transmissions from a first end of the fiber to a second end. The plurality of cores has a cross-sectional geometry in which the plurality of cores is configured in a polygonal array, in which at least some of the cores are positioned at the vertices of the array. The polygonal array is configured such that neighboring cores in the array are separated from each other by a distance that is sufficient to prevent crosstalk therebetween.

128. 发明公开

EP3232713A1 DATA TRANSMISSION METHOD, APPARATUS AND SYSTEM 无效
标题翻译：数据传输方法，装置和系统
公开(公告)号：EP3232713A1
公开(公告)日：2017-10-18
申请号：EP14909522.6
申请日：2014-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： YIN, Jinrong
IPC分类号： H04W40/24
CPC分类号： H04J14/04 , H04B10/07953 , H04B10/2581 , H04B10/272 , H04B2210/254 , H04Q11/0066 , H04Q2011/0024 , H04Q2011/0049 , H04W40/24
摘要： The present invention discloses a data transmission method, an apparatus, and a system. The method includes: receiving, by a mode multiplexer from an input port, a first optical signal transmitted by an optical line terminal; converting, according to a correspondence between an input port of an optical signal and a mode of the optical signal, the received first optical signal into a second optical signal in a mode corresponding to the input port; and multiplexing the second optical signal obtained by means of conversion to a few-mode optical fiber for transmission. This implements big data transmission by increasing a transmission capacity of a single optical fiber, and implements fast expansion of the transmission capacity, thereby improving total bandwidth utilization of a system.
摘要翻译：本发明公开了一种数据传输方法，装置和系统。该方法包括：模式多路复用器从输入端口接收光线路终端发送的第一光信号; 根据光信号的输入端口与所述光信号的模式的对应关系，将接收到的所述第一光信号转换为与所述输入端口对应的模式下的第二光信号; 并将通过转换获得的第二光信号复用到少模光纤进行传输。这通过增加单根光纤的传输容量来实现大数据传输，并且实现了传输容量的快速扩展，从而提高了系统的总带宽利用率。

129. 发明公开

EP3232587A1 DATA TRANSMISSION METHOD, APPARATUS AND SYSTEM 有权
标题翻译：数据传输方法，装置和系统
公开(公告)号：EP3232587A1
公开(公告)日：2017-10-18
申请号：EP14909405.4
申请日：2014-12-30
申请人： Huawei Technologies Co. Ltd.
发明人： YIN, Jinrong , WANG, Weiyang
IPC分类号： H04B10/2581
CPC分类号： H04J14/04 , G02B6/38 , H04B10/2581 , H04L1/0042 , H04L25/03343 , H04L27/02 , H04L27/367
摘要： The present invention discloses a data transmission method, an apparatus, and a system. The method includes: receiving a first-mode optical signal from a first port corresponding to a first port number; converting, according to a correspondence between the first port number and a first mode group number, the received first-mode optical signal into a second-mode optical signal carried in a first mode group identified by the first mode group number, where the second-mode optical signal carried in the first mode group identified by the first mode group number includes an optical signal in one or more modes; and outputting the second-mode optical signal obtained by means of conversion. This implements big data transmission by increasing a transmission capacity of a single optical fiber, and implements fast expansion of the transmission capacity, thereby improving total bandwidth utilization of a system.
摘要翻译：本发明公开了一种数据传输方法，装置和系统。该方法包括：从对应于第一端口号的第一端口接收第一模式光信号; 根据所述第一端口号与第一模式组号码的对应关系，将接收到的所述第一模式光信号转换为第一模式组号码标识的第一模式组中携带的第二模式光信号，所述第一模式组号码所标识的第一模式组中携带的多模光信号包括一种或多种模式下的光信号; 并输出通过转换获得的第二模式光信号。这通过增加单根光纤的传输容量来实现大数据传输，并且实现了传输容量的快速扩展，从而提高了系统的总带宽利用率。

130. 发明公开

EP3207676A1 DIFFERENTIAL-CODING AND DECODING FOR QUADRATURE DUOBINARY COHERENT OPTICAL COMMUNICATION SYSTEMS 审中-公开
标题翻译：正交频分双工相干光通信系统的差分编码和解码
公开(公告)号：EP3207676A1
公开(公告)日：2017-08-23
申请号：EP15787366.2
申请日：2015-10-14
申请人： Alcatel Lucent
发明人： XIE, Chongjin
IPC分类号： H04L27/34 , H04B10/61
CPC分类号： H04B10/616 , H04B10/5167 , H04B10/61 , H04B10/612 , H04J14/04 , H04L27/34
摘要： A method comprising, receiving digital- electrical input symbols of a stream of input symbols, the input symbols corresponding to signal points of a symbol constellation. The method also comprises classifying the input symbols, wherein a first symbol class comprises input symbols corresponding to signal points that are variant to rotation of the symbol constellation, and, a second symbol class comprises input symbols corresponding to signal points that are invariant to rotation of the symbol constellation. The method also comprises applying selective differential coding only to those input symbols of the first symbol class.
摘要翻译：一种方法，包括：接收输入符号流的数字电输入符号，所述输入符号对应于符号星座的信号点。该方法还包括对输入符号进行分类，其中第一符号类别包括对应于与符号星座图的旋转不同的信号点的输入符号，并且第二符号类别包括对应于信号点的输入符号，符号星座。该方法还包括仅将选择性差分编码应用于第一符号类的那些输入符号。

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