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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 12 — Apr. 20, 2010
  • pp: 2352–2362

Carry-free vector-matrix multiplication on a dynamically reconfigurable optical platform

Xianchao Wang, Junjie Peng, Mei Li, Zhangyi Shen, and Ouyang Shan  »View Author Affiliations


Applied Optics, Vol. 49, Issue 12, pp. 2352-2362 (2010)
http://dx.doi.org/10.1364/AO.49.002352


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Abstract

Applying the parallelism of optical computing, we present a novel method of vector-matrix multiplication (VMM) based on a new optical computing platform, the ternary optical computer, which can reconfigure any two-input trivalued logic optical processor at runtime, according to the decrease-radix design principle. In this work, we investigate a novel optical VMM (OVMM) using five logic operations with the modified signed-digit (MSD) number system. To simplify the computation process, we realize a carry-free optical addition in three steps, which is independent of the length of the operands. And a new implementation method is proposed that can be used to realize the MSD multiplication in parallel. Based on the generation of partial products in parallel and the binary-addition-tree algorithm, the multiplication can be implemented with the MSD addition. Our initial experiments have been performed to verify the proposed OVMM method. The results show that the proposed method of OVMM is feasible and correct.

© 2010 Optical Society of America

OCIS Codes
(200.3760) Optics in computing : Logic-based optical processing
(200.4560) Optics in computing : Optical data processing
(200.4740) Optics in computing : Optical processing
(200.4860) Optics in computing : Optical vector-matrix systems
(200.4960) Optics in computing : Parallel processing

ToC Category:
Optics in Computing

History
Original Manuscript: November 2, 2009
Revised Manuscript: March 12, 2010
Manuscript Accepted: March 19, 2010
Published: April 14, 2010

Citation
Xianchao Wang, Junjie Peng, Mei Li, Zhangyi Shen, and Ouyang Shan, "Carry-free vector-matrix multiplication on a dynamically reconfigurable optical platform," Appl. Opt. 49, 2352-2362 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-12-2352

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