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Optical CPU Design

person icon Michael Cloran

4.4

Optical CPU Design

Optical CPU Design

updated on icon Updated on Jun, 2025

language icon Language - English

person icon Michael Cloran

English [CC]

category icon IT and Software ,Operating Systems and Servers,

Lectures -11

Resources -11

Duration -46 mins

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Course Description

This course introduces the student to Digital Photonics. I have kept everything simple and to the point with a description of just a 4 bit optical CPU. Thus the registers with parallel load don’t use specialized circuitry for parallel load I just clock the clock line when needed in order to load values into a D type Register. This is naïve but the circuit works with slight nuances.

The goal of this course is to show the student a basic optical CPU to show it to work and to describe in detail the workings including a scalable and possibly reusable micro-programmable optical control unit.

The optical control unit uses a basic setup which is a mapping ROM attached to a presettable binary counter attached to a control ROM of which the outputs are programmed and map to various circuits for clocking or for setting a multiplexer or de-multiplexer etc. The component count including optical waveguides and pivot points is around 1000 components.

This course was a journey for me into optical circuit design with my own self designed Digital Photonic simulation software. I am sharing my first journey with the software which is a basic 4 bit optical CPU. The hobby software took about 6 long years to design and this circuit was used to test the software. I hope the course satisfies you curiosities of digital Photonics.

You should note that with this simulator I use proof of concept algorithms where a high intensity maps to a logic 1 and a low intensity maps to a logic 0. Thus at a high level the hardware algorithm can be shown to work. This is similar to Digital Electronics but in the optical domain.

Goals

  • The goal of this course is to introduce the student to digital photonics.

Prerequisites

  • For this course all a student needs is to have a basic understanding of digital logic.  
Optical CPU Design

Curriculum

Check out the detailed breakdown of what’s inside the course

Introduction

1 Lectures
  • play icon Introduction 00:49 00:49

Overview

1 Lectures
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Registers

1 Lectures
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Multiplexers

1 Lectures
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De-Multiplexers

1 Lectures
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Binary Counter

1 Lectures
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Presettable Binary Counter

1 Lectures
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The Arithmetic Logic Unit (ALU)

1 Lectures
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The optical CPU with manual control

1 Lectures
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The control unit

1 Lectures
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The Optical CPU with the control unit and program counter (PC)

1 Lectures
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Instructor Details

Michael Cloran

Michael Cloran

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