The two remarkable features of ternary values and a massive unit with thousands bits of parallel computation will make the ternary optical computer (TOC) with modified signed-digit (MSD) adder more powerful and efficient than ever before for numerical calculations. Based on the decrease-radix design presented previously, a TOC can satisfy either a user requiring huge capacity for data calculations or one with a moderate amount of data, if it is equipped with a prepared adder. Furthermore, with the application of pipelined operations and the proposed data editing technique, the efficiency of the prepared adder can be greatly improved, so that each calculated result can be obtained almost within one clock cycle. It is hopeful that by employing a MSD adder, users will be able to enter a new dimension with the creation of a new multiplier, new divider, as well as new matrix operator in a TOC in the near future.

Principles and construction of MSD adder in ternary optical computer

This paper discusses the principles, structures, and implementation procedures for reconfiguring a ternary optical processor (TOP). Typical structures, classifications, and naming of the TOP and basic operation units (BOUs) are described in this paper. The circuit implementations, commands, and processes for the recon-figuration are also discussed in detail. A simple analysis of the high performance and low power consumption of ternary optical computers is presented. Finally, an experiment is performed on reconfiguring a 1-bit BOU, which shows that the principles of reconfigurable TOPs are valid, and that the implementations and commands for the reconfiguration are effective.

Principles, structures, and implementation of reconfigurable ternary optical processors

On the basis of the symmetric encoding algorithm for the modified signed-digit (MSD), a 7*7 truth table that can be realized with optical methods was developed. And based on the truth table, the optical path structures and circuit implementations of the one-step MSD adder of ternary optical computer (TOC) were designed. Experiments show that the scheme is correct, feasible, and efficient.

Design and implementation of the one-step MSD adder of optical computer

Programming model and implementation mechanism for ternary optical computer

Implementation of DFT application on ternary optical computer

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.

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

In this paper, the design and implementation of a measurement system of response time for optical processor is presented. The system is used to measure the speed of ternary optical computer (TOC). The hardware of this system adopts photoelectric sensor, ADC and embedded systems; and the software adopts a cycle queue of samples, a data analysis program and a control program. The device of the design will be in small size and simple driving circuit. The sampling operation of one measuring is started by the signal sent out from optical components, and is stopped by itself when the measured light intensity achieves the threshold. So the sampling time is the response time of optical components. The experiment shows that the results are reliable and the measurement system is stable. Keywords-ternary optical computer, optical processor, photosensitive optic sensor, response time

The Response Time Measurement System of Optical Computer Component

Abstract Using the giant parallelism of photons to develop a new type of computer with more processor bits and data, the ternary optical computer, with the birth of the ternary optical computer SD 16 physical machine, the team built a monitoring system structure for task management, It is mainly used to deal with various complex data problems and provide parallel services for computing requests of multiple users. The storage of data in the monitoring system has also become a crucial issue. Based on the existing achievements of the team, this paper designs a data storage scheme for the management software of the ternary optical computer monitoring system, and finally summarizes and looks forward to the next research direction of the ternary optical computer data storage.

/pdf/a-datum-schemes-based-on-toc-monitoring-system-2b2l41s9.pdf

A Datum Schemes Based on TOC Monitoring System

Abstract TOC, as a new type of computer, uses the state of light: it uses the non light state and two polarized light states with orthogonal polarization directions to represent information, and uses a rotator and polarizer to change the three light states, thus completing ternary logic operations. This new type of computer has the advantages of numerous processor bits, independent use of processor bits in groups, and reconfigurable computing functions of processor bits; After more than 20 years of development, we have achieved fruitful results. In this paper, the research progress of ternary optical computer is comprehensively and thoroughly analyzed and summarized, from the concept of TOC theory to the kilobit processor being studied so far. Firstly, the theory of ternary optical computer is summarized. Secondly, according to the core theory of ternary optical computer and the achievements that have been made, ternary optical computer has also made some progress in software and data calculation, such as operation result file generation software, addition routine, multiplication routine, etc. Finally, the future research directions of ternary optical computer are analyzed and prospected. Firstly, the structure of ternary optical computer is introduced, and the existing research results are summarized. Finally, the future research directions of ternary optical computer are analyzed and prospected.

/pdf/a-survey-of-ternary-optical-computer-research-fp3h5fi8.pdf

A Survey of Ternary Optical Computer Research

This paper implements Optical Vector-Matrix Multiplication (OVMM) completely in parallel on a novel optical computing architecture, Ternary Optical Computer (TOC), by use of the Modified Signed-Digit (MSD) number system For high efficiency, partial products (PPs) are generated in parallel and the vector inner products (VIPs) are produced by a binary-tree algorithm, and then the OVMM is implemented The experimental result validates the feasibility and correctness of VMM on TOC In this system, it is not necessary to gauge light intensities, but judge whether there is light during decoding

Vector-matrix multiplication based on a ternary optical computer

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