40-Gb/s downstream and 10-Gb/s upstream long-reach WDM-PON employing remotely pumped EDFA and self wavelength managed tunable transmitter. - Zhiguo Zhang 004; Yanfei Sun Xue Chen; Liqian Wang; Min Zhang 016; Wangang Ren; Haili Qin; Lei Zhu (ChinaCom, 2014)