Design difficulties of 3D lightwave circuits for switching

Josef Giglmayr

doi:10.1117/12.475567

11 July 2002 Design difficulties of 3D lightwave circuits for switching

Josef Giglmayr

Proceedings Volume 4870, Active and Passive Optical Components for WDM Communications II; (2002) https://doi.org/10.1117/12.475567
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

For recently proposed 2-D lightwave circuits (LWCs) the architectural implications of introducing several wavelengths are discussed. Three types of 3-D architectures are considered (1) reconfigurable router (2) straight-forward extension of the 2-D LWCs of any geometry N 3 to 3-D by introducing several wavelengths at every waveguide (WG) and (3) mapping a generated network topology (which starts with the 2-D LWC) onto the 3-D LWC in (2). The architectures in (2) require the generation of the total number of permutations at every switch for non-blocking networks whereas the architectures in (3) allow (amongst others) for some switches the reduction of the number of permutations. The computation of the total number of permutations requires (i) a photonic feedback (FB) controller matrix at several wavelengths which provide rn! x k! permutations and additionally (ii) several frequency conversions (FCs) which complete the total number (m x k)! permutations where k is the size of switches and rn is the number of wavelengths.

Citation Download Citation

Josef Giglmayr "Design difficulties of 3D lightwave circuits for switching", Proc. SPIE 4870, Active and Passive Optical Components for WDM Communications II, (11 July 2002); https://doi.org/10.1117/12.475567

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