Optical Communication System for Online Detection of Illicit Drug in Border Ports

摘要

In this study, we develop inspection technique for illicit drug detection based on optical communication system. This technique based on optical transmitter, chemical fiber Bragg grating sensor and optical receiver. The developed system detect and identified the concealed illicit drug. All samples are identified by their spectral shift extracted from refractive index (absorption) variation. Classification of the samples is achieved by using artificial neural network (LM) algorithm with rate of accuracy above 90%.