Development of multi diagonal based OCDMA system for free space optical communication system

The performance of FSO communication link is subject to numerous atmospheric factors in wireless like fog, rainfall, and haze which leads deteriorate the a system term BER power at receiver side. Due advantages OCDMA over other access techniques, it allows various users channel simultaneously without intervention with user. It has ability provide security, large number users, privacy, reduce interference from multiple operate asynchronously. So, this paper, Multi-Diagonal codes along fiber brags grating filters for Spectral amplitude coded technique developed analysis performed terms received power.