Applications of advanced microring filters for switching in next generation elastic optical networks

F. Fresi, N. Sambo, C. Porzi, G. Meloni, A. Bogoni, L. Potí
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引用次数: 1

Abstract

We investigate the use of high-order sum-difference all-pass microring filters for switching applications in circuit-switched elastic optical networks. A practical design taking into account optical losses accordingly to typical reported values for strip-waveguides in silicon-on-insulator technology is considered. Simulations performed on 30 Gbaud Nyquist PM-QPSK signals show that the proposed structure can achieve similar or better performance than commercial spectrum selective switch filters. Induced OSNR penalty per node due to filtering can be reduced with the adoption of these filters, thus increasing the maximum number of nodes that can be traversed before signal is corrupted. Filters programmability in terms of bandwidth is also investigated.
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先进微环滤波器在下一代弹性光网络交换中的应用
我们研究了高阶和差全通微环滤波器在电路交换弹性光网络中的应用。考虑到在绝缘体上硅技术的条形波导的典型报告值的光损耗的实际设计。在30 Gbaud Nyquist PM-QPSK信号上进行的仿真表明,该结构可以获得与商用频谱选择开关滤波器相似或更好的性能。采用这些滤波器可以减少由于滤波引起的每个节点的OSNR损失,从而增加在信号损坏之前可以遍历的最大节点数量。滤波器在带宽方面的可编程性也进行了研究。
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