发明公开
EP1443695A2 An optical transmission apparatus and an optical wavelength multiplex network therewith 审中-公开
一种用于在顺序光传输和光波分复用网络

  • 专利标题: An optical transmission apparatus and an optical wavelength multiplex network therewith
  • 专利标题(中): 一种用于在顺序光传输和光波分复用网络
  • 申请号: EP04001662.8
    申请日: 2004-01-27
  • 公开(公告)号: EP1443695A2
    公开(公告)日: 2004-08-04
  • 发明人: Miyata, HideyukiTomofuji, HiroakiOnaka, HiroshiTakeno, Minoru
  • 申请人: FUJITSU LIMITED
  • 申请人地址: 1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi, Kanagawa 211-8588 JP
  • 专利权人: FUJITSU LIMITED
  • 当前专利权人: FUJITSU LIMITED
  • 当前专利权人地址: 1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi, Kanagawa 211-8588 JP
  • 代理机构: HOFFMANN - EITLE
  • 优先权: JP2003019067 20030128
  • 主分类号: H04J14/02
  • IPC分类号: H04J14/02
An optical transmission apparatus and an optical wavelength multiplex network therewith
摘要:
A double-ring optical wavelength multiplex network is disclosed, which includes multiple optical transmission apparatuses that can reduce the unit cost of initially installing a small optical network while providing the flexibility to expand. For multiplexed optical signals arriving at a node, the optical transmission apparatus "drops" selected wavelengths for local delivery and "passes" others for continued transmission on the network. For optical signals originating ("added") at the node, the optical transmission apparatus wavelength multiplexes the "added" signals with the "passing" signals for transmission on the network. For "added" signals, the optical transmission apparatus blocks "passing" signals of the same wavelength.
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