自動交換光網絡是光傳輸技術的下一個發展方向，通過引入智能化的控制平面，使光傳送網能提供連接的動態建立和拆除。多粒度光交叉連接設備是自動交換光網絡中傳送平面的關鍵設備，直接為自動交換光網絡提供光通道連接功能。該文介紹了多粒度光交叉連接設備的兩種結構方案，并對兩種方案進行比較。分析了多粒度光交叉連接設備相對常規光交叉連接設備的優點，以及對自動交換光網絡中控制平面的功能支持。最后介紹了多粒度光交叉連接設備網絡的波長綁定和路由算法的研究進展及發展趨勢。
關 鍵 詞 自動交換光網絡; 多粒度光交叉連接; 波帶

Abstract ASON is the next step in the progress of optical trandmission technology. It provides the ability of connection’s dynamic setup and release by introducing the intelligence contol plane. The multigranular optical cross connect is the key equipment in ASON.It provides the connection function for optical channel.The two structure of MG-OXC are introduced and compared in this paper.The advantage of MG-OXC comparing to the ordinary OXC is introduced . It’s ability to support the control plane of ASON is also introduced.The evultion and trend of waveband and routing algorithm research are introduced in the last part.
Key words ASON; MG-OXC; Waveband