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Proceedings Paper

On-chip optical matrix-vector multiplier
Author(s): Lin Yang; Lei Zhang; Ruiqiang Ji
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Paper Abstract

Matrix-vector multiplication is a fundamental operation in modern digital signal processing. Inspired by the intrinsic spatial parallelism of optics, many efforts have been made to develop optical apparatuses that can perform such a parallelizable operation. Here we report the proposal of an on-chip optical signal processor with the function of matrixvector multiplication, which is composed of laser-modulator array, multiplexer, splitter, microring modulator matrix and photodetector array. We fabricate a 4×4 microring modulator matrix on silicon-on-insulator (SOI) platform with complementary metal-oxide-semiconductor (CMOS)-compatible process. 8×107 multiplications and accumulations (MACs) per second is implemented by such an on-chip microring modulator matrix and off-chip laser-modulator array, multiplexer and photodetector. The significant progress in integrated optoelectronics makes it possible to integrate all required functional optical devices and even the driving and controlling circuits on the same chip. Theoretical analysis is given to estimate the potential performance of such an integrated system, which is several orders of magnitude faster than current electrical digital signal processors.

Paper Details

Date Published: 26 September 2013
PDF: 5 pages
Proc. SPIE 8855, Optics and Photonics for Information Processing VII, 88550F (26 September 2013); doi: 10.1117/12.2028585
Show Author Affiliations
Lin Yang, Institute of Semiconductors (China)
Lei Zhang, Institute of Semiconductors (China)
Ruiqiang Ji, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8855:
Optics and Photonics for Information Processing VII
Khan M. Iftekharuddin; Abdul A. S. Awwal; Andrés Márquez, Editor(s)

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