An improvement of optical PPM communication with high security

TL;DR

This paper enhances optical PPM communication by proposing a new modulation and receiver scheme that improves security and overcomes implementation challenges in high-speed optical fiber data transmission.

Contribution

It introduces an improved optical PPM scheme with a novel modulation and receiver design that addresses previous implementation difficulties.

Findings

Enhanced security in optical PPM communication.

Reduced implementation complexity.

Potential for higher data transmission speeds.

Abstract

The purpose of this paper is to celebrate Sir D. Payne's 80th birthday by dedicating our latest results as a continuation of his work in optical communications. One of the important issues in optical communications is to protect the transmission information data passing through optical fiber channels. Many ideas have been proposed and are being actively developed to implement in the physical layer of ultra-high-speed communications. As a representative example, a methodology that achieves this goal by fusing modulation techniques in ordinary optical communications and mathematical cipher is being actively studied. To further clarify this advantage, a theoretical concept has been proposed to solve the problem by adopting a PPM code format. However, this scheme has several difficulties at the implementation stage. Thus, this paper presents an optical scheme on modulation and receiver that eliminate those drawbacks.