具有组播能力的OXC的串扰研究

具有组播能力的OXC的串扰研究

胡辽林;刘增基

(西安电子科技大学综合业务网理论及关键技术国家重点实验室，陕西西安 China)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-04-20 发布日期:2003-04-20

Crosstalk analysis of the OXC topologies with multicasting capability

HU Liao-lin;LIU Zeng-ji

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi’an China， China)

Received:1900-01-01 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20

摘要/Abstract

摘要： 针对两种具有组播通信能力的OXC，用最坏值方法对其串扰进行了分析，推导出功率输出方程，并对总串扰随波长数和输入/输出光纤数的变化情况进行了研究. 通过比较，两种OXC组播工作时串扰性能差不多，单播工作时在一定条件下基于MOSaD的OXC优于基于SaD的OXC. 在现有的技术条件下，即使光纤数N=2和波长数M=4，两种OXC组播工作时的串扰也达-17dB.

关键词: 密集波分复用, 串扰, 光交叉连接, 光开关, 组播

Abstract: The crosstalk of two OXC topologies with multicasting capability is analyzed. Then the output power equation for the topologies are derived in the worst case. According to the equations, the total crosstalk as a function of the number of wavelengths and the number of input/output fibers is studied. From the comparison we can find that the crosstalk of the two topologies performs almost equally for multicast connections and the crosstalk of teh OXC based on MOSaD is lower than that of the OXC based on SaD for unicast connections. In the condition of state-of-art technologies, when the number of wavelengths equals 4 and the number of input/output fibers equals 2, the crosstalk is as much as -17dB in the case of multicasting.

Key words: wavelength division multiplexing, crosstalk, optical cross connect(OXC), optical switches, multicast

中图分类号:

TN929.11

胡辽林;刘增基. 具有组播能力的OXC的串扰研究[J]. J4, 2003, 30(2): 197-200.

HU Liao-lin;LIU Zeng-ji.

Crosstalk analysis of the OXC topologies with multicasting capability

[J]. J4, 2003, 30(2): 197-200.

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