supported by European Union’s Seventh Framework Program FP7 COCONUT Project(GA318515);the Ministry of Science and Innovation under Grant No.TEC2011-25215(ROMULA)Project;TEC2015-70835(FLIPER) Project;PhD fellowship donated by China Scholarship Council
In this Letter, an efficient bidirectional differential phase-shift keying (DPSK)--DPSK transmission for a ultra- dense wavelength division-multiplexed passive optical network is proposed. A single distributed feedb...