Processing capability of a parallel optical computing system based on image logic algebra

1993 ◽  
Author(s):  
Masaki Fukui ◽  
Ken-ichi Kitayama
Keyword(s):  
Optical Computing ◽  
Computing System ◽  
Processing Capability ◽  
Parallel Optical Computing

PHOTOREFRACTIVE MEDIA FOR OPTICAL INTERCONNECTIONS

1992 ◽  
Vol 01 (01) ◽  
pp. 167-201 ◽  
Author(s):  
POCHI YEH ◽  
CLAIRE GU
Keyword(s):  
Neural Network ◽  
Photorefractive Effect ◽  
Optical Computing ◽  
Wave Mixing ◽  
Optical Interconnections ◽  
Fundamental Limit ◽  
Two Wave Mixing ◽  
Parallel Optical Computing ◽  
Grating Formation

The photorefractive effect and its applications in optical interconnections are described. The fundamental limit, the dynamics of grating formation, and the two-wave mixing (TWM) process are discussed. Reconfigurable interconnections for parallel optical computing is demonstrated using photorefractive holograms. Neural network interconnections with photorefractive media are also presented.

scholarly journals All-Optical Logic and Arithmetic Operators Designed by Modified Add-Drop Filter

2018 ◽  
Vol 12 (1) ◽  
pp. 73-80
Author(s):  
Prapas Phongsanam ◽  
Preecha Yupapin
Keyword(s):  
Optical Computing ◽  
Full Adder ◽  
Computing System ◽  
Ring Resonators ◽  
Small Scale ◽  
Optical Logic ◽  
Optical Elements ◽  
Half Adder ◽  
Compact Size ◽  
All Optical

Optical micro-ring resonators (MRRs) element can be used in many applications. This paper we propose a photonics circuit design based on optical tree architecture (OTA) for all-optical elements by using the modified add-drop filter for an all-optical arithmetic logic unit (ALU) aimed for computing applications system. All-optical 2x4 decoder, all-optical comparator, all-optical half adder, all-optical half subtractor, all-optical full adder, all-optical full subtractor and proposed new design all-optical 4x16 decoder were proposed. We have studied the nonlinear effect in the modified add-drop filter system, which is control by injected the nonlinear pulses on top as an input for generated all-optical logic and arithmetic operations simultaneously at the through and drop port of modified add-drop filter. The optical input and control field of the modified add-drop filter circuit can be formed by nonlinear dark and bright pluses. The obtained simulation results have shown that the nonlinear pulse generated by the nonlinear modified add-drop filter can control the output consistency, which is important when the interconnect between each circuit output parts are required. The advantages of the modified add-drop filter are low power, ultra-fast switching, tuneable and high security which is compact size and footprint. It is suitable for the next generation of all-optical small-scale device and all-optical computing system requirements.

Processing Unit for Stacked Optical Computing System: Pattern Shift Encoder

1996 ◽  
Vol 3 (6) ◽  
pp. A381-A384 ◽  
Author(s):  
Hideo Kawai ◽  
Yoshinori Takeuchi
Keyword(s):  
Optical Computing ◽  
Computing System ◽  
Processing Unit
Sign in / Sign up

Export Citation Format

Share Document