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Interferometric noise reduction in fiber-optic links by superposition of high frequency modulation
Journal of Lightwave Technology
In this paper, the reduction of interferometric noise by superposition of high frequency modulation is analyzed. It is shown that the nature of this reduction is due to a redistribution of noise energy from baseband to higher frequencies where it can be discarded by low-pass filtering. Detailed analysis revealed the dependence of the noise reduction factor on the product fo T, and the modulation index of the high frequency superimposed modulation. The proper choice of parameters can lead todoi:10.1109/50.144919 fatcat:qcyc6pu4xbfhvky47hwqee2hmi