Title :
Comparison of two modulation formats at spectral efficiency of 5 bits/dual-pol symbol
Author :
Han Sun ; Egorov, Roman ; Basch, Bert E. ; McNicol, John ; Kuang-Tsan Wu
Author_Institution :
Infinera Canada, Ottawa, ON, Canada
Abstract :
Two modulation formats at spectral efficiency of 5 bits/dual-pol symbol are compared. Linewidth tolerances and feed-forward carrier recovery methods are discussed. Performances over uncompensated SMF and LEAF fibers are shown. The 4-D optimized format is found to be modestly better than a hybrid combination better th of PM-QPSK and PM-8QAM.
Keywords :
optical fibre communication; optical fibre polarisation; quadrature amplitude modulation; quadrature phase shift keying; spectral line breadth; 4-D optimized format; LEAF fiber; PM-8QAM; PM-QPSK; SMF fiber; dual-pol symbol; feed-forward carrier recovery method; linewidth tolerance method; polarization multiplexed quadrature phase shift keying; spectral efficiency;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1544
