Abstract
Two novel strictly nonblocking crossbar-like WDM networks are proposed and used to design what we believe to be new classes of Clos-type networks. The proposed Clos-type networks are based on two design methods, namely, the wavelength-interconnected and the fiber-interconnected methods. The proposed designs enforce wavelength conversion strictly between two prespecified and fixed wavelengths, thus eliminating the need for expensive wide-range wavelength converters. Analysis of hardware complexity shows that the proposed designs can achieve up to 30% reduction in overall cost compared with best-known WDM switching networks while using a smaller number of stages.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Akbar Ghaffar Pour Rahbar and Oliver Yang
J. Opt. Netw. 6(7) 897-912 (2007)
Kausik Majumdar and Subrat Kar
J. Opt. Netw. 6(2) 239-247 (2007)
De-Gui Sun, Ying Zha, Tiegen Liu, Ying Zhang, Xiaoqi Li, and Xiuhua Fu
Opt. Express 15(15) 9347-9356 (2007)