A novel wavelength router architecture is proposed to implement large-scale multihop-based virtual optical ring (VOR) networks over a star-configured optical cable plant. A number of cyclic N x N arrayed waveguide gratings (AWGs) each having an optical loop-back for its own VOR are interconnected together for a two-level VOR network. The proposed router reduces the maximum number of hops and enables the use of wide channel spacing. The design principle is demonstrated through a proof-of-concept experiment and useful features are discussed.
© 2005 IEEE
Chang-Joon Chae, An Vu Tran, and Rodney S. Tucker, "Bandwidth-Efficient Modular Wavelength Router for Large-Scale Multihop Virtual Optical Ring Networks," J. Lightwave Technol. 23, 1015- (2005)