We propose a novel survivable wavelength-division multiplexed-passive optical network (WDM-PON) based on an N ×
N cyclic array waveguide grating (AWG) and reflective semiconductor optical amplifiers (RSOAs). ONUs are grouped
and connected with extra connection fibres (CFs). Protection resources are provided mutually in ONU pairs. The
characteristics of the proposed survivable WDM-PON and wavelength routing scheme are analyzed. Experiments of 10-
Gb/s downstream and 1.25-Gb/s upstream transmission experiments are demonstrated to verify our proposed scheme.