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    • 2. 发明申请
    • APPARATUS AND METHOD FOR PROTECTION SWITCHING OF OPTICAL CHANNEL
    • 光通道保护切换装置及方法
    • US20090060504A1
    • 2009-03-05
    • US12053400
    • 2008-03-21
    • Sun-hyok ChangHwan-seok ChungSang-soo LeeKwang-joon Kim
    • Sun-hyok ChangHwan-seok ChungSang-soo LeeKwang-joon Kim
    • H04J14/02
    • H04J14/029H04J14/0284
    • An apparatus and method for protection switching of an optical channel at each node in an optical network based on wavelength division multiplexing optical transmission technology are provided. The method can be applied to any node having at least two optical fiber inputs and outputs. The apparatus includes: a splitter receiving an electrical signal and splitting the received electrical signal into a plurality of electrical signals which are substantially identical to the received electrical signal; an output switching unit selecting output paths of the electrical signals split by the splitter according to an optical channel path control command of the optical network; and a plurality of optical transponders being assigned to the respective output paths of the electrical signals, converting the electrical signal input by the selection of the output switching unit to an optical signal, and transmitting the converted optical signal to another node of the optical network.
    • 提供了一种基于波分复用光传输技术在光网络中的每个节点处保护光信道切换的装置和方法。 该方法可以应用于具有至少两个光纤输入和输出的任何节点。 该装置包括:分离器,其接收电信号并将接收到的电信号分解为与所接收的电信号基本相同的多个电信号; 输出切换单元,根据光网络的光信道路径控制指令,选择由分路器分割的电信号的输出路径; 以及多个光转发器被分配给电信号的相应输出路径,通过输出切换单元的选择将输入的电信号转换为光信号,并将转换的光信号传输到光网络的另一个节点。
    • 3. 发明授权
    • Apparatus and method for protection switching of optical channel
    • 光通道保护切换装置及方法
    • US08036527B2
    • 2011-10-11
    • US12053400
    • 2008-03-21
    • Sun-hyok ChangHwan-seok ChungSang-soo LeeKwang-joon Kim
    • Sun-hyok ChangHwan-seok ChungSang-soo LeeKwang-joon Kim
    • G02F1/00G02F2/00H01S3/00H04B10/00H04J14/00
    • H04J14/029H04J14/0284
    • An apparatus and method for protection switching of an optical channel at each node in an optical network based on wavelength division multiplexing optical transmission technology are provided. The method can be applied to any node having at least two optical fiber inputs and outputs. The apparatus includes: a splitter receiving an electrical signal and splitting the received electrical signal into a plurality of electrical signals which are substantially identical to the received electrical signal; an output switching unit selecting output paths of the electrical signals split by the splitter according to an optical channel path control command of the optical network; and a plurality of optical transponders being assigned to the respective output paths of the electrical signals, converting the electrical signal input by the selection of the output switching unit to an optical signal, and transmitting the converted optical signal to another node of the optical network.
    • 提供了一种基于波分复用光传输技术在光网络中的每个节点处保护光信道切换的装置和方法。 该方法可以应用于具有至少两个光纤输入和输出的任何节点。 该装置包括:分离器,其接收电信号并将接收到的电信号分解为与所接收的电信号基本相同的多个电信号; 输出切换单元,根据光网络的光信道路径控制指令,选择由分路器分割的电信号的输出路径; 以及多个光转发器被分配给电信号的相应输出路径,通过输出切换单元的选择将输入的电信号转换为光信号,并将转换的光信号传输到光网络的另一个节点。
    • 9. 发明授权
    • Apparatus and method for cross-connecting optical path in wavelength division multiplexing system
    • 波分复用系统中交叉连接光路的装置和方法
    • US08406625B2
    • 2013-03-26
    • US12486642
    • 2009-06-17
    • Hwan-seok ChungSun-hyok ChangSang-soo LeeKwang-joon Kim
    • Hwan-seok ChungSun-hyok ChangSang-soo LeeKwang-joon Kim
    • H04J14/00
    • H04Q11/0062H04J14/0204H04J14/0205H04J14/0209H04J14/0212H04J14/0217H04J14/0291H04J14/0295H04J14/0297H04Q2011/0011H04Q2011/0015H04Q2011/0081
    • Provided is an optical network in which a wavelength division multiplexing-based optical transmission scheme is implemented. An apparatus for cross-connecting an optical path includes a path switch including a plurality of input terminals receiving optical signals from other nodes, and a plurality of output terminals sending the optical signals to the other nodes, the path switch switching the path of the optical signal so that the optical signal input via one of the input terminals is output to one of the output terminals; and a wavelength converter converting a wavelength of the optical signal input via the input terminal and outputting the wavelength-converted optical signal to the output terminal according to a switching result of the path switch. Thus, inefficient use of a network resource due to wavelength collision can be prevented, the path can be automatically cross-connected and thus quickly established, path switching and branch combination can be performed irrespective of wavelength, and switching can be performed irrespective of direction.
    • 提供了实现基于波分复用的光传输方案的光网络。 用于交叉连接光路的装置包括:路径开关,其包括从其他节点接收光信号的多个输入端子,以及将光信号发送到其他节点的多个输出端子,路径开关切换光学路径 信号,使得经由一个输入端子输入的光信号被输出到输出端之一; 以及波长转换器,其经由所述输入端子转换输入的所述光信号的波长,并且根据所述路径切换的切换结果将所述波长转换的光信号输出到所述输出端子。 因此,可以防止由于波长碰撞导致的网络资源的低效使用,路径可以自动交叉连接并因此快速建立,路径切换和分支组合可以与波长无关地执行,并且可以不考虑方向进行切换。