Parallel ultrafast digital optical computations
New methods to implement optical digital computation elements and processors are studied in this thesis. Various ultrafast nonlinear optical effects, such as Kerr, phase conjugation, and second-harmonic-generation process are used for optical computation. The ultrafast Sagnac interferometric logic switches which have a better mechanical stability over other two-beam interferometric switching geometries are described. Using a variety of these switches, various binary and multiple-valued optical logic elements is detailed. As an alternative optical logic implementation technique, an optical-phase-conjugation pattern-logic method is proposed and demonstrated. The implementation of ultrafast optical interconnection devices, i.e., an optical sampler, an A/D converter, a dynamic crossbar, as well as various generalized perfect shuffles, is also described. Most of the proposed schemes uses a parallel processing geometry. For the optical numerical computation, various binary and non-binary computing structures are also investigated.
- Research Organization:
- New York Univ., NY (USA)
- OSTI ID:
- 6685973
- Country of Publication:
- United States
- Language:
- English
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99 GENERAL AND MISCELLANEOUS
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990300 -- Information Handling
COMPUTERS
DIGITAL SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
LOGIC CIRCUITS
OPTICAL COMPUTERS
OPTICAL EQUIPMENT
PARALLEL PROCESSING
PROGRAMMING
SWITCHES