An optical access scheme with 1.25Gbit/s NRZ downstream signals over 6GHz subcarrier for next generation mobile systems applicationQiming Yang, Yufeng Shao, Anrong Wang, Zhuang Wang, Jie Yang, Linfang Yi, Ni Yu, Qing Tian, Shuanfan Liu, Renjie Zuo, Jie Yuan, Yanlin Li, Peng Chen and Chong LiITM Web Conf., 45 (2022) 02001DOI: https://doi.org/10.1051/itmconf/20224502001