Abstract
A combinatorial logic circuit is an interconnected array of logic gates. However, for various arithmetic operations, iterative sequential computation is needed. To furnish feedback, memory elements, such as flip-flops or registers must be utilized. With this feedback, the overall logic circuit is a finite-state sequential logic machine. The use of optics to perform fast combinatorial logic processing was suggested1-3. However, for the various proposed combinatorial logic elements the efficient feedback generation is an active research area. To generate a sequential logic circuit, a viable hybrid approach is to use optics for both fast parallel logic and interconnect and high-speed bit-addressable electronics for storage and feedback1. In this paper, a specific hybrid sequential computing module, where optical array processors that perform the combinatorial logic and interconnect operations, are sandwiched between high-speed electronic parallelly-addressed storage registers, is described. This hybrid system can sustain various fast optical register transfer micro-operations (ORTMOs), operations that are the most primitive operations required for an optical digital computer. This new system will be referred to as an optical register transfer processor (ORTP).
© 1989 Optical Society of America
PDF ArticleMore Like This
Masashi Hashimoto, Ken-ichi Kitayama, and Naohisa Mukohzaka
WD5 Optical Computing (IP) 1989
Adolf W. Lohmann and Gregor Stucke
TuI4 Optical Computing (IP) 1989
Abraham P. Ittycheriah, John F. Walkup, and Thomas F. Krile
TuI10 Optical Computing (IP) 1989