Waveband switching (WBS) has attracted much attention because of its practical importance in reducing the port count, associated control complexity, and cost of photonic cross-connections.

• 摘要由于波带交换在减少交换结构端口数、降低控制面复杂度和光交叉连接费用方面具有实际的意义，因而引起了人们广泛的关注。