This paper will review the results of an 18 month program which developed and demonstrated a compact size general purpose Holographic-Based Digital optical Processor, HBDOP. The HBDOP was developed to accommodate a nu...
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ISBN:
(纸本)0819408697
This paper will review the results of an 18 month program which developed and demonstrated a compact size general purpose Holographic-Based Digital optical Processor, HBDOP. The HBDOP was developed to accommodate a number of different holograms. Three Holograms were developed;one performs parallel symbolic substitution for hetero-associative memory recall, a second performs 64 node hypercube interconnection network operation, and the third performs 64 node mesh-interconnected multiprocessor operation. The 64 node hypercube interconnect operation will not be discussed in this paper. The demonstrated systems utilize N**4 holographic array recording to achieve massive interconnection parallelism not achievable with VLSI technology. Significant results of the program included the demonstration of 64 digital optical processors operating in parallel to perform digital operations such as morphological functions, simple target tracking, and noise removal operations using simple logic functions while simultaneously communicating through a mesh interconnection network. The demonstration of a 32 × 32 hologram array containing inter-pattern associations to act as an interconnection weight matrix for symbolic substitution and associative memory recall operations. The demonstration of a 64-node hypercube interconnection network by using the N**4 hologram array to achieve 3-D parallel interconnection. Finally, the development of an automatic system for N**4 holographic array recording. The automatic recording system is capable of recording one hologram element in 10 seconds.
The performance/price ratio of digital dataprocessing is steadily increasing, while the performance/price ratio of optical data processing remains nearly constant, although at a favourable level. Given this trend, on...
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The techniques for intensity modulation based on nonlinear interaction of two waves separated by Stokes shift are discussed. The dynamics of the hole burned within a 1550-nm data stream and within a broad 1550-nm back...
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The techniques for intensity modulation based on nonlinear interaction of two waves separated by Stokes shift are discussed. The dynamics of the hole burned within a 1550-nm data stream and within a broad 1550-nm background are further explored. Through 60-dB amplification of short 40 ps full width at half maximum pulses from a Q-switched laser diode, a approximately 1kW peak power pulses is generated which enables sufficient energy Stokes erasure pulses to be created in 10 m of dispersion compensated fiber (DCF).
NASA Technical Reports Server (Ntrs) 19740024676: Engineering Studies Related to the Skylab Program. Task H: Microwave/optical/Infrared Image processing for Ocean Current Recognition. [from Radar Altimeter data by NAS...
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NASA Technical Reports Server (Ntrs) 19740024676: Engineering Studies Related to the Skylab Program. Task H: Microwave/optical/Infrared Image processing for Ocean Current Recognition. [from Radar Altimeter data by NASA Technical Reports Server (Ntrs); published by
Achieving both reconfigurability and stable output signals is a critical challenge in the development of integrated photonic circuits for large-scale optical quantum information processing. This has led to the creatio...
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Real-time optical image processing has become a critical technology in domains such as autonomous systems, medical diagnostics, and surveillance. However, traditional centralized processing approaches face challenges ...
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The paper discusses the advantages of coherent optical processors and outlines the requirements on Fourier-based lenses for optical recording, read-out and processing. An optimized optical system for holographic recor...
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The paper discusses the advantages of coherent optical processors and outlines the requirements on Fourier-based lenses for optical recording, read-out and processing. An optimized optical system for holographic recording is described.
The use of the bimodal optical computer (BOC) in determining the weights for an adaptive phased array radar is introduced. Interference canceling is presented for two cases: (1) assuming the direction of the jammer is...
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The use of the bimodal optical computer (BOC) in determining the weights for an adaptive phased array radar is introduced. Interference canceling is presented for two cases: (1) assuming the direction of the jammer is known and (2) assuming no a priori information. The effect of the jammers on the array pattern is shown for up to four jammers.
In advanced machine learning tasks, artificial neural networks are frequently utilized;yet, as a result of von Neumann bottleneck-limited hardware, they require large data sets and significant power consumption. Chaot...
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Different variants are considered of introduction of optical means for data discrete processing and transmission in computer systems (CS) with mass parallelism. It is shown that features of optical data processing is ...
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Different variants are considered of introduction of optical means for data discrete processing and transmission in computer systems (CS) with mass parallelism. It is shown that features of optical data processing is combined successfully with specific features of similar system and leads to automatic time multiplexing of all devices. A possibility of optical CS adjustment practically without overheads conditioned by features of a solved problem permits considerably increase their total productivity in addition to planned one.
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