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    • 41. 发明专利
    • Optical terminal equipment for optical path network
    • 用于光路径网络的光学终端设备
    • JP2012060622A
    • 2012-03-22
    • JP2010204978
    • 2010-09-13
    • Nagoya Univ国立大学法人名古屋大学
    • SATO KENICHIHASEGAWA HIROSHIHIRAMITSU RYOSUKE
    • H04Q3/52H04B10/27H04B10/29H04J14/00H04J14/02
    • H04J14/0202H04J14/0204H04J14/0205H04J14/0208H04J14/0209H04J14/0212H04J14/0213H04J14/0217H04Q2213/1301
    • PROBLEM TO BE SOLVED: To provide optical signal terminal equipment for an optical path network capable of further miniaturizing the size of a matrix optical switch.SOLUTION: Drop side optical signal terminal equipment 10d selects a wavelength group including a drop wavelength from a plurality of wavelength groups, demultiplexes the wavelength group into a plurality of wavelength channels composing the wavelength group and selects a wavelength to be dropped from the plurality of wavelength channels, after demultiplexing one wavelength division multiplexing light selected from a plurality of wavelength division multiplexing lights incident from input side optical fibers into the plurality of wavelength groups composing the wavelength division multiplexing light. Thus optical signal terminal equipment 10 can achieve colorless, directionless and contentionless function and can be drastically reduced in size by configuring selectors for the wavelength group selection and the wavelength selection with a combination of compact switches.
    • 要解决的问题:提供能够进一步小型化矩阵式光开关的光路网络的光信号终端设备。 解决方案:侧面光信号终端设备10d从多个波长组中选择包括滴波长的波长组,将该波长组多路分解为构成该波长组的多个波长通道,并从该波长组中选择一个要丢弃的波长 在将从输入侧光纤入射的多个波分复用光中选择的一个波分复用光分离成构成波分复用光的多个波长组之后,将多个波长信道解复用。 因此,光信号终端设备10可以通过配置紧凑型开关的组合的波长组选择和波长选择的选择器来实现无色,无向和无争用的功能,并且可以大大减小尺寸。 版权所有(C)2012,JPO&INPIT
    • 43. 发明专利
    • Method and system for communicating optical traffic
    • 用于通信光通信的方法和系统
    • JP2009050000A
    • 2009-03-05
    • JP2008208174
    • 2008-08-12
    • Fujitsu Ltd富士通株式会社
    • PALACHARLA PAPARAOBIHON DANIELNAITO TAKAO
    • H04J14/00H04B10/20H04J14/02
    • H04J14/0213H04B10/275H04J14/0204H04J14/0205H04J14/0208H04J14/0209H04J14/0212H04J14/0217H04J14/0224H04J14/0283H04J14/0286
    • PROBLEM TO BE SOLVED: To provide a method and system for communicating optical traffic that substantially eliminates or reduces at least some of the disadvantages and problems associated with conventional methods and systems. SOLUTION: A method for communicating optical traffic includes the stages of adding optical traffic to an optical ring comprising a plurality of nodes and of communicating the optical traffic on the optical ring. The optical traffic comprises a plurality of virtual waveband which comprise a first virtual waveband of traffic comprising a first number of wavelengths and a second virtual waveband of traffic comprising a second number of wavelengths. The second number is different from the first number. The method also includes the stages of dropping the first virtual waveband of traffic at a first node of the plurality of nodes and of dropping the second virtual waveband of traffic at a second node of the plurality of nodes. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供用于传达光学业务的方法和系统,其基本上消除或减少与常规方法和系统相关联的至少一些缺点和问题。 解决方案:一种用于通信光流量的方法包括将光流量添加到包括多个节点并在光环上传送光业务的光环的阶段。 光学业务包括多个虚拟波段,其包括包括第一数量波长的第一虚拟波段和包括第二波长数的业务的第二虚拟波段。 第二个数字与第一个数字不同。 该方法还包括在多个节点的第一节点处丢弃业务的第一虚拟波段并在多个节点的第二节点丢弃业务的第二虚拟波段的阶段。 版权所有(C)2009,JPO&INPIT
    • 47. 发明专利
    • Method and apparatus for controlling dispersion in optical communication system
    • 控制光通信系统分散的方法和装置
    • JP2006109477A
    • 2006-04-20
    • JP2005287616
    • 2005-09-30
    • Lucent Technol Incルーセント テクノロジーズ インコーポレーテッド
    • FISHMAN DANIEL ALIU XIANGWEI XINGYING JINPIN
    • H04B10/02H04B10/18H04J14/00H04J14/02
    • H04B10/2513H04J14/0208
    • PROBLEM TO BE SOLVED: To provide a dispersion compensation apparatus comprising an interleaver for interleaving/de-interleaving an even channel and an odd channel of a WDM signal. SOLUTION: As shown in Figure 2, the dispersion compensation apparatus 200 includes a first interleaver 212 for de-interleaving the even channel and the odd channel of the WDM signal 202 at a first output port 212a and a second output port 212b. A first DCM 215a is combined with a first output port 212a, and a second DCM 215b is combined with a second output port 212b. At least one of the DCMs has a periodical group delay (PGD) DCM for providing dispersion compensation regarding one or a plurality of the even channel or the odd channel of the WDM signal 202. When both of the first DCM 215a and the second DCM 215b are PGD-DCM, the DCMs 215a and 215b desirably have nearly the same periods (in a frequency area), and a pass band is shifted by only about a half of a period. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种色散补偿装置,其包括用于对WDM信号的偶信道和奇信道进行交织/解交织的交织器。 解决方案:如图2所示,色散补偿装置200包括用于在第一输出端口212a和第二输出端口212b处对偶数通道进行解交织和WDM信号202的奇数通道的第一交织器212。 第一DCM 215a与第一输出端口212a组合,第二DCM 215b与第二输出端口212b组合。 至少一个DCM具有周期性组延迟(PGD)DCM,用于提供关于WDM信号202的一个或多个偶数信道或奇数信道的色散补偿。当第一DCM 215a和第二DCM 215b 是PGD-DCM,DCM 215a和215b期望具有几乎相同的周期(在频率区域中),并且通带仅偏移约一半的周期。 版权所有(C)2006,JPO&NCIPI