A Cost-effective 2.5 Gb/s/lambda, Bi-directional Coherent UDWDM-PON with Computationally-efficient DSP
Rong Hu, Qi Yang, Ming Luo, Xi Xiao, Xiao Xiao, Haibo Li, William Shieh
2014 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) | IEEE | Published : 2014
A 2.5Gb/s/λ bi-directional coherent UDWDM-PON is demonstrated with 4-ASK modulation using heterodyne detection. The frequency offset tolerance is around 6 GHz within 0.5-dB penalty, and no EDFA is needed in either ONU or OLT.