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51.发明公开
公开(公告)号：KR1020120065726A
公开(公告)日：2012-06-21
申请号：KR1020100127003
申请日：2010-12-13
Applicant: 한국전자통신연구원
IPC: H04B10/148
CPC classification number: H04B10/6161
Abstract: PURPOSE: A coherent optical receiving device for digital equalization of optical signal is provided to optimize an equalizer of the device regardless of color distribution value. CONSTITUTION: A coherent optical receiving device comprises: a chromatic dispersion compensation unit(126) for compensating color dispersion to digital signal corresponding to optical signal using a filter; a decoder for generating bit sequence to the compensated signal; a bit error calculator(132) for calculating bit error quantity to the bit sequence; and a control unit for setting determined filter coefficient.
Abstract translation: 目的：提供一种用于光信号数字均衡的相干光接收装置，以优化器件的均衡器，而不管颜色分布值如何。 一种相干光接收装置，包括：色散补偿单元，用于使用滤波器将色散补偿到对应于光信号的数字信号; 用于产生对补偿信号的位序列的解码器; 位差计算器（132），用于计算位序列的位错误量; 以及用于设定确定的滤波器系数的控制单元。
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公开(公告)号：KR1020120029618A
公开(公告)日：2012-03-27
申请号：KR1020100091527
申请日：2010-09-17
Applicant: 한국전자통신연구원
IPC: H04B10/00
CPC classification number: H04J14/002 , H04B10/614 , H04B10/616
Abstract: PURPOSE: An optical coherent receiver and an optical signal processing method are provided to accurately estimate a frequency, thereby preventing influences of a distorted phase occurring an RZ pulse cover and compensating for the distorted phase. CONSTITUTION: A frequency offset compensating unit(370) estimates a frequency offset about at least one of even samples and odd samples which are inputted from a polarization demultiplexer. The frequency offset compensating unit compensates for the frequency offset of the even samples and odd samples using the estimated frequency offset. A cover distortion compensating unit(390) compensates for distorted phases of the samples whose frequency offsets are compensated for. The distorted phase is generated from a light transferring device.
Abstract translation: 目的：提供光学相干接收机和光信号处理方法以精确估计频率，从而防止出现RZ脉冲覆盖的失真相位的影响并补偿失真相位。 构成：频率偏移补偿单元（370）估计从偏振解复用器输入的偶数样本和奇数样本中的至少一个的频率偏移。 频率偏移补偿单元使用估计的频率偏移来补偿偶数样本和奇数样本的频率偏移。 覆盖失真补偿单元（390）补偿频率偏移被补偿的样本的失真相位。 失真相位由光传输装置产生。
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公开(公告)号：KR100989676B1
公开(公告)日：2010-10-26
申请号：KR1020080099697
申请日：2008-10-10
Applicant: 한국전자통신연구원
IPC: H04B10/29
CPC classification number: H04Q11/0062 , H04J14/0204 , H04J14/0205 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0291 , H04J14/0295 , H04J14/0297 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0081
Abstract: 본 발명은 파장분할 다중화(wavelength division multiplexing) 광 전송 기술이 구현된 광 네트워크에 관한 것으로, 타 노드로부터 광신호를 입력받는 다수의 입력단과 타 노드로 광신호를 전송하는 다수의 출력단을 포함하고, 상기 입력단들 중 하나로 입력된 광신호가 상기 출력단 들 중 하나의 출력단으로 출력되도록 경로를 스위칭하는 경로 스위칭부; 및 상기 입력단으로 입력된 광신호의 파장을 변환하여 상기 경로 스위칭부에서 스위칭 결과에 따라 상기 출력단으로 출력하는 파장 변환부; 를 포함하는 것을 특징으로 하는 광 회선 분배 장치에 의해 파장 충돌로 인해 네트워크 자원의 비효율적 사용을 막을 수 있고, 자동으로 회선 분배가 가능하여 빠른 경로 설정이 가능하며, 파장에 상관없이 광신호의 경로 스위칭 및 분기/결합이 가능하고 광신호를 방향에 관계없이 스위칭 가능하다는 효과가 있다.
회선 분배, 파장변환, 광통신망-
公开(公告)号：KR1020100070686A
公开(公告)日：2010-06-28
申请号：KR1020080129341
申请日：2008-12-18
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04J14/02 , H04B10/00
CPC classification number: H04B10/2557 , H04J14/0224 , H04J14/0257 , H04J14/026 , H04J14/0279
Abstract: PURPOSE: A channel allocation method of a transferring system for wavelength division multiplex method and an apparatus thereof are provided to supply in order to control interference between channels. CONSTITUTION: A plurality of light transmitters(800-1~800-N) processes an optical signal for transferring according to the fixed signal modulation method and a signal transferring speed. A channel assigning unit(810) obtains the signal modulation method and signal transferring speed information from a plurality of light transmitters. The channel assigning unit assigns the channel to the light transmitters with considering. The channel assigning unit assigns the channel to be adjacent a phase-modulated optical signals.
Abstract translation: 目的：提供用于波分复用方法的传送系统的信道分配方法及其装置，以便控制信道之间的干扰。 构成：多个光发射机（800-1〜800-N）根据固定信号调制方式和信号传送速度处理光信号进行传送。 信道分配单元（810）从多个光发射机获取信号调制方法和信号传送速度信息。 信道分配单元考虑将信道分配给光发射机。 信道分配单元分配与相位调制光信号相邻的信道。
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公开(公告)号：KR1020100066295A
公开(公告)日：2010-06-17
申请号：KR1020090032189
申请日：2009-04-14
Applicant: 한국전자통신연구원
IPC: H04B10/548 , H04B10/50 , H04B10/2581
Abstract: PURPOSE: An optical transmission device for outputting stable optical signal is provided to steadily control the phase difference between two MZ modulators of the QPSK(Quarternary Phase Shift Keying) light modulator and two arms at the same time. CONSTITUTION: An optical modulator(610) comprises parallel-connected Mach-Zehnder interferometer type of a first modulator(620) and a second modulator(630). The light modulator performs the QPSK(Quarternary Phase Shift Keying) modulation by inputting output optical signal of the light source(600). By controlling an bias respectively about the first modulator and the second modulator and the light modulator, a output stabilizer stabiles a finical output signal of the light modulator.
Abstract translation: 目的：提供一种输出稳定光信号的光传输装置，以稳定地控制QPSK（四周相移键控）光调制器的两个MZ调制器和两个臂同时的相位差。 构成：光调制器（610）包括并联马赫 - 曾德干涉仪类型的第一调制器（620）和第二调制器（630）。 光调制器通过输入光源（600）的输出光信号来执行QPSK（四周相移键控）调制。 通过分别围绕第一调制器和第二调制器和光调制器控制偏置，输出稳定器稳定光调制器的有限输出信号。
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Patent Agency Ranking
公开(公告)号：KR1020100040532A
公开(公告)日：2010-04-20
申请号：KR1020080099697
申请日：2008-10-10
Applicant: 한국전자통신연구원
IPC: H04B10/29
CPC classification number: H04Q11/0062 , H04J14/0204 , H04J14/0205 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0291 , H04J14/0295 , H04J14/0297 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0081
Abstract: PURPOSE: An optical path distribution device in a wavelength division multiplexing system and a method for the same are provided to eliminate the requirement of signal wavelength presetting when an optical signal is branched/combined from each network node of the wavelength division multiplexing system to a local network. CONSTITUTION: A path switching unit(100) comprises input terminals(10-1~10-4) which receives optical signals from other node and output terminals(15-1~15-4) which transmits the optical signals to other node. The path switching unit switches a path so that an optical signal inputted to one among the input terminals is outputted to one output terminal. A wavelength converting unit(200) changes the wavelength of the optical signal inputted to the input terminal in order to output the result to the output terminal according to switching result. The path switching unit comprises a branch unit which amplifies, branches, and outputs the signal inputted to the connected input terminal and a signal selecting unit.
Abstract translation: 目的：提供一种波分复用系统中的光路分配装置及其方法，以消除当光信号从波分复用系统的每个网络节点分支/组合到本地的信号波长预设时的要求 网络。 构成：路径切换单元（100）包括从其他节点接收光信号的输入端（10-1〜10-4）和将光信号发送到其他节点的输出端（15-1〜15-4）。 路径切换单元切换路径，使得输入到输入端中的一个的光信号被输出到一个输出端。 波长转换单元（200）改变输入到输入端子的光信号的波长，以根据切换结果将结果输出到输出端子。 路径切换单元包括分支单元，其对输入到连接的输入端子的信号和信号选择单元进行放大，分支和输出。
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公开(公告)号：KR1020080053074A
公开(公告)日：2008-06-12
申请号：KR1020060125023
申请日：2006-12-08
Applicant: 한국전자통신연구원
CPC classification number: H04Q11/0005 , H04Q11/0066 , H04Q2011/0015 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/0045
Abstract: An apparatus and a method for optical label exchange and payload reproduction, and an optical switch apparatus using the apparatus are provided to pass a signal, which is not diverged or combined in a node, in an optical signal format without converting into an electric signal, and convert a label signal into an electric signal to recognize and update path information, thereby exchanging a label efficiently, and reproducing, switching, and transmitting a payload signal on an optical burst signal transmission network. An apparatus(220) for optical label exchange and payload reproduction comprises an envelope detecting unit(222), a payload processing unit(221), and a label processing unit(223). The envelope detecting unit converts the phase of two signals to output the payload of an optical burst or the envelope of a label. The two signals are signals that the optical burst signal is converted into an electric signal. The payload processing unit synchronizes the optical burst signal with the envelope detected in the envelope detecting unit, extracts a payload signal included into the optical burst signal, and reproduces the extracted payload signal optically or converts the wavelength of the extracted payload signal. The label processing unit synchronizes the optical burst signal with the envelope detected in the envelope detecting unit, extract a label signal included into the optical burst signal, and converts the extracted label signal according to a path through the optical burst signal is transmitted.
Abstract translation: 提供了一种用于光学标签交换和有效载荷再现的装置和方法，以及使用该装置的光学开关装置，用于将光信号格式中不发散或组合在一起的信号转换成电信号， 并将标签信号转换为电信号以识别和更新路径信息，从而有效地交换标签，并且在光突发信号传输网络上再现，切换和发送有效载荷信号。 一种用于光学标签交换和有效载荷再现的装置（220）包括一个包络检测单元（222），一个有效载荷处理单元（221）和一个标签处理单元（223）。 包络检测单元转换两个信号的相位，以输出光学突发的有效载荷或标签的包络。 这两个信号是将信号转换成电信号的信号。 有效载荷处理单元将光猝发信号与在包络检测单元中检测到的包络同步，提取包含在光猝发信号中的有效载荷信号，并且光学地再现所提取的有效载荷信号或转换所提取的有效载荷信号的波长。 标签处理单元将光猝发信号与在包络检测单元中检测到的包络同步，提取包含在光猝发信号中的标签信号，并根据通过光猝发信号的路径转换所提取的标签信号。
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公开(公告)号：KR1020080052334A
公开(公告)日：2008-06-11
申请号：KR1020070099368
申请日：2007-10-02
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/40 , H04B10/27
CPC classification number: H04J14/0212 , H04B10/275
Abstract: An optical network node device is provided to manage optical network efficiently by simultaneously processing transmission of small capacity and large quantity transmission of a wavelength channel. A plurality of 4-terminal ROADM(Reconfigurable Optical Add Drop Multiplexer)(700,710,720,730) passes or drops a WDM(Wavelength Division Multiplexing) channel, or adds the WDM to a WDM wavelength channel which passes an optically converted signal so as to pass them together. Optical transceivers perform photoelectric conversion to a signal dropped from a corresponding ROADM or optically convert an electric signal transmitted to a corresponding ROADM. A switch(780) redistributes transmission capacity, cross-connects the signals which are converted by the optical transceiver, switches the signals to one of optical transceivers corresponding to a direction in which the signal will pass and transmits the signals to a corresponding ROADM.
Abstract translation: 提供光网络节点设备，通过同时处理小容量的传输和波长信道的大量传输来有效地管理光网络。 多个4端ROADM（可重配置光分插复用器）（700,710,720,730）通过或丢弃WDM（波分复用）信道，或将WDM加到通过光转换信号的WDM波长信道上，以便将它们一起传递 。 光收发器对从相应的ROADM下降的信号执行光电转换，或将发送到相应的ROADM的电信号进行光学转换。 开关（780）重新分配传输容量，交叉连接由光收发器转换的信号，将信号切换到与信号将通过的方向相对应的光收发器之一，并将信号发送到相应的ROADM。
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59.发明授权광회선분배기 시스템, 그 광회선분배기 시스템을 이용한ＷＤＭ 시스템 및 그 ＷＤＭ 시스템을 기반으로 하는광통신망 失效光子交叉连接器系统，使用相同光子交叉连接器系统的WDM系统和基于相同WDM系统的光通信网络
公开(公告)号：KR100819035B1
公开(公告)日：2008-04-03
申请号：KR1020060096456
申请日：2006-09-29
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/00
CPC classification number: H04Q11/0005 , H04J14/0204 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04Q2011/0015 , H04Q2011/0039
Abstract: A photonic cross-connector system, a WDM(Wavelength Division Multiplexing) system using the same, and an optical communication network based on the same are provided to switch a single wavelength from an arbitrary input port to an output port, to implement an optical multicasting function, and to convert a deteriorated signal into a noise-cancelled, clean signal. A photonic cross-connector system comprises an optical coupler(100), a WSS(Wavelength Selective Switch), a WDM multicasting unit(300), an optical transceiver(400), and a circuit distributor control system(500). The optical coupler drops an inputted optical signal to many paths. The WSS extracts at least one wavelength signal from an inputted signal and outputs the extracted signal to at least one port. The WDM multicasting unit simultaneously reproduces and regenerates an inputted signal into a plurality of signals having different wavelengths. The optical transceiver executes a signal add-drop function, and the circuit distributor control system controls each of the units.
Abstract translation: 提供光子交叉连接器系统，使用该系统的WDM（波分复用）系统和基于该光通信系统的光通信网络，以将单个波长从任意输入端口切换到输出端口，以实现光学多播 功能，并将劣化的信号转换为噪声消除，干净的信号。 光子交叉连接器系统包括光耦合器（100），WSS（波长选择性开关），WDM多播单元（300），光收发器（400）和电路分配器控制系统（500）。 光耦合器将输入的光信号丢弃到许多路径。 WSS从输入信号中提取至少一个波长信号，并将提取的信号输出到至少一个端口。 WDM多播单元同时将输入的信号再生并再生成具有不同波长的多个信号。 光收发器执行信号分插功能，电路分配器控制系统控制每个单元。
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