Interferometric noise reduction in fiber-optic links by superposition of high frequency modulation

P.K. Pepeljugoski, K.Y. Lau
1992 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 to
more » ... lete elimination of the converted phase noise from the system.
doi:10.1109/50.144919 fatcat:qcyc6pu4xbfhvky47hwqee2hmi