Prototype Demonstration of Discrete Correlation Processor-2 Based on High-Speed Optical Image Steering for Large-Fan-Out Reconfigurable Optical Interconnections

We present a discrete correlation processor-2 (DCP-2), which is an optical processor with reconfigurability of interconnection patterns for large-fan-out optical interconnection systems. To our knowledge, there is no reconfigurable optical processor satisfying the requirements for large fan-outs such as high-speed reconfiguration of interconnection pattern, high optical efficiency, and high contrast ratio, because existing spatial light modulators (SLM#x0027;s) lack at least one of these features. The DCP-2 architecture fulfills the requirements by using a hybrid configuration composed of a high-speed image steerer and a spatial light modulator, which work in a complementary manner to shorten the setup time of the SLM. We constructed two kinds of prototype demonstrators based on this architecture. In the experiment, reconfiguration speed of the DCP-2 prototype with shift-invariant optical interconnections, in which a liquid crystal SLM cooperated with a two-dimensional acousto-optic beam deflector, was about 26,000 times faster than that of the standalone SLM at the cost of 50#x0025; energy loss by the deflector.

[1]  Frank Wyrowski,et al.  Diffractive optical elements: iterative calculation of quantized, blazed phase structures , 1990 .

[2]  Jürgen Jahns,et al.  Optical Computing Hardware , 1994 .

[3]  R. Gerchberg.  A practical algorithm for the determination of phase from image and diffraction plane pictures , 1972 .

[4]  Adolf W. Lohmann.  Image formation of dilute arrays for optical information processing , 1991 .

[5]  P. Benabes,et al.  Design and construction of an optoelectronic crossbar switch containing a terabit per second free-space optical interconnect , 1999 .

[6]  T M Pinkston,et al.  WARRP Core: Optoelectronic Implementation of Network-Router Deadlock-Handling Mechanisms. , 1998, Applied optics.

[7]  Kouichi Nitta,et al.  Comparison of electrical and optical interconnection for large fan-out communication , 1999 .

[8]  Kenichi Iga,et al.  Lasing characteristics of InGaAs-GaAs polarization controlled vertical-cavity surface-emitting laser grown on GaAs [311] B substrate , 1999 .

[9]  A Louri,et al.  Architectural approach to the role of optics in monoprocessor and multiprocessor machines. , 2000, Applied optics.

[10]  M W Haney,et al.  Multichip free-space global optical interconnection demonstration with integrated arrays of vertical-cavity surface-emitting lasers and photodetectors. , 1999, Applied optics.

[11]  David V. Plant,et al.  4 x 4 vertical-cavity surface-emitting laser (VCSEL) and metal-semiconductor-metal (MSM) optical backplane demonstrator system. , 1996, Applied optics.

[12]  M R Taghizadeh,et al.  Binary surface-relief gratings for array illumination in digital optics. , 1992, Applied optics.

[13]  Osamu Wada,et al.  Ultrafast intersubband relaxation (⩽150 fs) in AlGaN/GaN multiple quantum wells , 2000 .

[14]  J. Allebach,et al.  Synthesis of digital holograms by direct binary search. , 1987, Applied optics.

[15]  Keiichiro Kagawa,et al.  Discrete correlation processor as a building core of a digital optical computing system: architecture and optoelectronic embodiment , 1999 .

[16]  Kai Hwang,et al.  Computer architecture and parallel processing , 1984, McGraw-Hill Series in computer organization and architecture.

[17]  H. Herzig.  Micro-Optics : Elements, Systems And Applications , 1997 .

[18]  Mark A. Franklin,et al.  Pin Limitations and Partitioning of VLSI Interconnection Networks , 1982, IEEE Transactions on Computers.

[19]  A Louri,et al.  Experimental demonstration of the optical multi-mesh hypercube: scaleable interconnection network for multiprocessors and multicomputers. , 1996, Applied optics.

[20]  Ming C. Wu,et al.  Micromachining for optical and optoelectronic systems , 1997, Proc. IEEE.

[21]  Yoshitaka Ohiso,et al.  Design Approaches for VCSEL's and VCSEL-Based Smart Pixels Toward Parallel Optoelectronic Processing Systems. , 1998 .

[22]  C C Guest,et al.  Simulated annealing algorithm for binary phase only filters in pattern classification. , 1990, Applied optics.

[23]  Afonso Ferreira,et al.  Optical Interconnections and Parallel Processing: Trends at the Interface , 1998 .