Seung-Hyun Cho, Jie Hyun Lee, Han Hyub Lee, Seung Il Myong, Jong Hyun Lee, Sang Soo Lee: Loop-Back WDM-PON With 100 Gb/s Capacity Using Spectrally Sliced ASE Injected RSOA. JOCN 5(5): 447-456 (2013)