Study of theory and experiment on signal to noise ratio (SNR) in magneto-optic disc readout system

Abstract

In magneto-optic storage, increasing of SNR in readout system is pragmatically one of the key techniques. This paper analyzes the signal and noise sources in readout system, puts forward the concept of optimum SNR, sets up analytical-function expression of SNR under the action of complex factors, and obtains some important results. It provides the basis for optimizing system. Theoretic analysis is identical with experiment results.