Optical Waveguide Circuits For Printed Wire-Board Interconnections

9 February 1989

proceedings article
Published by SPIE-Intl Soc Optical Eng

p. 92-100
https://doi.org/10.1117/12.960115

Abstract

Integrated waveguide media based on standard polyimide process technology are described for implementation of intraboard and interboard optical interconnections. High-density router, splitter, and combiner building-block components have been developed in polyimide channel waveguides that are basically compatible with the materials and processes required for printed wire-board and multichip package fabrication. Fanout distribution circuits using 8x8 star and 1x4 tree topologies have been constructed for implementing a 1x32 global fanout control bus in a SIMD multiprocessor system. A 128 linear perfect shuffle routing circuit has been demonstrated and characterized; to our knowledge, this circuit (approximately 2300 components in 5.3x2.6 mm2) is the largest-dimension perfect shuffle and the highest-integration-level optical circuit ever reported.

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