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Efficient Routing of Board-Level Optical Clocks for Ultra High-Speed Systems
Chung-Seok (Andy) SEO
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E87-A No.6 pp.1310-1317
Publication Date: 2004/06/01
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2003))
Full Text: PDF
A new approach to optical clock distribution utilizing optical waveguide interconnect technology is introduced. In this paper, we develop a new algorithm for design and optimization of embedded optical clock distribution networks for printed wiring boards. The optimization approach takes into account bending and propagation losses of optical waveguides. Less than 26.1 psec in signal timing skew is obtained for a signal flight time of 614.38 psec. About 15% reduction in optical power consumption is also obtained over clock nets routed with existing (optical) methods.