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Proceedings Paper

Next generation packet routers
Author(s): Marcus Duelk; Jurgen Gripp; Jesse Simsarian; Ashish Bhardwaj; Pietro N. Bernasconi; Matthias Kauer; Martin Zirngibl; Oldrich M. Laznicka
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Paper Abstract

Current IP/ATM routers use an electrical switching fabric/backplane and either optical or electrical interconnects between the line cards to route data. An electrical backplane and associated connectors limit the number of high speed interconnections due to practical considerations. Scaling these so-called third generation routers to the terabit regime with high port densities faces enormous problems due to the high interconnect and electrical power density. Packet routers with an optical switching fabric are considered as the next generation of IP/ATM Multi-Service routers which enable scalability towards the Terabit and Petabit regime. In this paper, various architectures with electrically active or passive optical switch fabrics will be highlighted and differences in terms of switching speed and scalability will be discussed. Recent results using a passive Array Waveguide Grating (AWG) router and fast wavelength tunable laser are presented in the second half of this paper.

Paper Details

Date Published: 8 July 2002
PDF: 14 pages
Proc. SPIE 4872, Optical Transmission Systems and Equipment for WDM Networking, (8 July 2002); doi: 10.1117/12.475116
Show Author Affiliations
Marcus Duelk, Lucent Technologies/Bell Labs. (United States)
Jurgen Gripp, Lucent Technologies/Bell Labs. (United States)
Jesse Simsarian, Lucent Technologies/Bell Labs. (United States)
Ashish Bhardwaj, Lucent Technologies/Bell Labs. (United States)
Pietro N. Bernasconi, Lucent Technologies/Bell Labs. (United States)
Matthias Kauer, Lucent Technologies/Bell Labs. (United States)
Martin Zirngibl, Lucent Technologies/Bell Labs. (United States)
Oldrich M. Laznicka, Lucent Technologies INS (United States)


Published in SPIE Proceedings Vol. 4872:
Optical Transmission Systems and Equipment for WDM Networking
Benjamin B. Dingel; Brewster Roe Hemenway; Achyut Kumar Dutta; Ken-Ichi Sato, Editor(s)

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