"An overview of the proposed system showing an input image layer placed amongst other layers which combine in different ways to perform logical operations when light is passed through the stack. Credit: ©2024 Mashiko et al. CC-BY-ND" (ScitechDaily, From Light Waves to Logic: The Cutting-Edge of Optical Computing)
Japanese researchers are working with fundamental optical gates that can revolutionize optical computing. The optical gates are the tools that can make it possible to create fully optical computers. In traditional versions, the optical system transmits information only between microchips.
Photonic computers use light for communication. In those systems, all wires between components are replaced using optical fiber or nanotubes. Binary photonic computers are easy to make. The shadow or cut in the light means zero. And full power light means one. In the easiest models, there are two optical wires. Wire A means 1, and wire B means 0. Those photonic beams will be sent to the photovoltaic cells that transform those laser rays into electric impulses.
When we think about complex systems that must be very fast there can also be some third wire between wires A and B. The system works like this. The wires are A, X, and B. When the system sends data in line A, the system translates this line A as 1. The line X means "pause".The pause is a separator, that separates bits from each other. And the line B is 0. The pause allows the system to send two 1s or two 0s successively. The data flow seems like this.
1(pause X) 0 (pause X) 0 (pause X) 1 (pause X).
The purpose of "pause" is to keep those bits in order. The system can also connect serial numbers to each bit. The problem is always in the laser system if the system sends two bits at the same time it is possible that the data will be corrupted. If every bit involves a serial number, that helps to keep data in the right order.
This kind of system requires an AI-based advanced operating system. When we think about the 0 and 1 in photonic computers we can say, that the IR frequency can be one and the UV can be 0. Or we can use any other two or three radiation frequencies. The third frequency is the pause or separator, which separates 1 and 0 or any other two bits from each other. That has the same purpose as the third wire.
The information transporting laser rays can travel through nanotubes or in other hollow laser rays. The purpose of those systems is to protect information.
However, there is a possibility that highly advanced systems can use linear light waves that cut each other.
The third wire which can be an electric wire tells the system if the electricity is on. If the electricity is cut, the intelligent system can save data to mass memory.
In nanotube-based photonic systems, lasers transport information. The newest system uses light waves to cut the information-carrying light waves. When other light waves travel around the information-carrying waves protect the information, that travels in it. The idea is that the system can make the shadows send light waves across each other.
https://scitechdaily.com/from-light-waves-to-logic-the-cutting-edge-of-optical-computing/
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