Title :
Sensitivity improvement of incoherent multilevel (30-Gbit/s 8QAM and 40-Gbit/s 16QAM) signaling with non-Euclidean metric and MSPE (multi symbol phase estimation)
Author :
Kikuchi, Nobuhiko ; Sasaki, Shinya
Author_Institution :
Central Res. Lab., Hitachi Ltd., Kokubunji
Abstract :
Highly sensitive incoherent multilevel signaling is demonstrated with the sensitivity nearly comparable to coherent detection, and a 160-km SMF transmission of pre-distorted 40-Gbit/s 16-QAM signal without optical dispersion compensation is also performed.
Keywords :
optical fibre communication; phase estimation; quadrature amplitude modulation; 16-QAM signal; incoherent multilevel signaling; multi symbol phase estimation; non-Euclidean metric; sensitivity improvement; Bit error rate; High speed optical techniques; Optical modulation; Optical noise; Optical receivers; Optical sensors; Optical signal processing; Optical transmitters; Phase estimation; Signal to noise ratio; (060.2330) Fiber optics communications; (060.4080) Modulation;
Conference_Titel :
Optical Fiber Communication - incudes post deadline papers, 2009. OFC 2009. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2606-5
Electronic_ISBN :
978-1-55752-865-0
