Wavelength Reuse in WDM-PON Using Gain Saturation of Semiconductor Optical Amplifier Assisted by Spectral Trimming Through Fabry-Perot Etalon. - Joji Maeda; Takumi Shibata; Yoshiki Ikeda; Takuya Izurnisawa; Kariyawasam Indipalage Amila Sampath (ECOC, 2018)