QIN Tao, ZHANG Han yi, ZHENG Xiao ping, et al. Model for calculation of the optical SNR of OXC chains[J]. 2001,(5):1-4. DOI: 10.13756/j.gtxyj.2001.05.001.
We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper. The impact of two power equalization themes on the optical SNR is presented. We also point out the EDFA design principle for optimizing noise character of OXC chains.