Abstract
In this paper, an innovative 3-to-3 bi-directional optical bus architecture based on multimode polymer waveguides with embedded 45° micro-mirrors was successfully demonstrated. With a lithography-free imprinting process by high quality electroplated metallic mold, the device can be precisely replicated with a low fabrication cost. Superior to any point-to-point optical waveguide, the implemented optical bus structure is capable of broadcasting and receiving high speed data at 10 Gbit/sec among multiple points as a high performance optical backplane.
Highlights
Conventional optical interconnect using point-to-point optical waveguide or waveguide array fails to provide non-congestional interconnection among multiple points, which is due to the intrinsic nature of such architectural topology [1,2,3,4]
Such a point-to-point optical interconnect structure is useful to most high performance computer (HPC) system only when it is combined with electrical switch backplanes
In order to overcome these challenges, we have demonstrated an optical backplane bus that are based on substrate-guided optical interconnects [5,6,7,8], which is a direct network to possess very high connectivity
Summary
Conventional optical interconnect using point-to-point optical waveguide or waveguide array fails to provide non-congestional interconnection among multiple points, which is due to the intrinsic nature of such architectural topology [1,2,3,4] Such a point-to-point optical interconnect structure is useful to most high performance computer (HPC) system only when it is combined with electrical switch backplanes. This topological deficit critically restricts the gain in the bandwidth capacity, because it cannot carry out multicast/broadcast as effectively as the backplane bus can do [5]. We designed a polymer waveguide based bidirectional optical bus system with 3-to-3 nodes, which have demonstrated the advantages of enhanced bandwidth, increased reliability, package compatibility and significantly lower fabrication cost
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