Design of optical computing systems and demonstrations

B. S. Wherrett, S. Bowman, G. S. Buller, R. G A Craig, J. G H Mathew, S. D. Smith, J. F. Snowdon, F. A P Tooley, A. C. Walker

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Given that the parallelism of presently perceived digital-optical devices is unlikely to be dramatically larger than that achievable electronically, it is the combination of 2-D parallelism and interconnect freedom through 3-D that gives optics its potential advantages. Progress towards an optical CLIP, cellular logic image processor, is described. A diode-laser driven all-optical circuit has been constructed, run at a millisecond cycle time, and used to perform four logic processes. This circuit, in parallel format, would form the heart of a cellular logic image processor. The device technology has demonstrated 15 × 15 parallelism and predicted parallelism in excess of 104 cm-2. CLIP simulations and tolerance studies have been used to optimize the circuitry, develop algorithms and establish the object codes that will be used for primitive function tasks.

Original languageEnglish
Pages (from-to)154-159
Number of pages6
JournalProceedings of SPIE - the International Society for Optical Engineering
Publication statusPublished - 1990
Event1990 International Topical Meeting on Optical Computing - Kobe, Jpn
Duration: 8 Apr 199012 Apr 1990


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