Title :
PS-QPSK with duobinary-shaping and MLSD reception for constructing power- and spectrum-efficient superchannel
Author :
Guo-Wei Lu ; Kamio, Yukiyoshi ; Kawanishi, Tetsuyas
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol. (NICT), Koganei, Japan
Abstract :
By deploying duobinary-shaping and MLSD reception, we propose and implement a power-efficient superchannel consists of 32Gbaud PS-QPSK channels on a 25GHz grid, demonstrating 3.84-bit/s/Hz spectrum efficiency and 1.6-dB higher sensitivity than PM-QPSK superchannel.
Keywords :
maximum likelihood sequence estimation; optical fibre networks; optical fibre polarisation; optical switches; quadrature phase shift keying; telecommunication channels; MLSD reception; PS-QPSK channels; duobinary-shaping; frequency 25 GHz; power-efficient superchannel; spectrum-efficient superchannel; Bit error rate; Optical filters; Optical transmitters; Phase shift keying; Receivers; Sensitivity;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
