Choice of Photodetectors for the Design of SACOCDMA System Employing Multi-Diagonal Code

Abstract

Optical communication are difficult to design and analyze therefore it is useful to find the effects of various parameters and characteristics of the Photodetectors used in optical systems. So in this paper effect of various parameters on the performance of proposed system with both types of Photodetectors is analyzed. Through the simulative results taken from "Optisystem 11.0" it is concluded that APD has an edge over PIN at Lower data rates, at lower transmit power levels, at higher attenuation and can support large transmission distance but PIN is preferred at higher thermal noise and higher data rates in comparison to APD.