A full-duplex 20/10Gb/s WDM-PON is demonstrated by all-optical carrier recovery technique, showing that it is efficient and flexible for being applied to different downstream signals as non-/chirped ASK or multilevel signals as 4-PAM or OFDM
Lazaro, J.A. [et al.]. Full-duplex 20/10 Gb/s WDM-PON with remodulation of chirped ASK and multi-level quaternary PAM and OFDM. A: Optical Fiber Communication Conference and Exposition and National Fiber Optic Engineers Conference. "2012 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC 2012): Los Angeles, California, USA, 4-8 March 2012". Los Angeles: Institute of Electrical and Electronics Engineers (IEEE), 2012, p. 1-3.