Title :
Nonlinear tolerant and spectrally efficient 86 Gbit/s RZ-DQPSK format for a system upgrade
Author :
Vassilieva, O. ; Hoshida, T. ; Choudhary, S. ; Kuwahara, H.
Author_Institution :
Fujitsu Network Commun., Richardson, TX, USA
Abstract :
We propose a method employing 86 Gbit/s RZ-DQPSK format to enable doubling the capacity of 43 Gbit/s WDM systems. Its relaxed OSNR, chromatic dispersion and PMD requirements allow the upgrade without changing WDM optics, using 43 Gbit/s electronics.
Keywords :
differential phase shift keying; optical fibre communication; optical fibre dispersion; optical fibre polarisation; quadrature phase shift keying; wavelength division multiplexing; 43 Gbits/s; 80 Gbits/s; DQPSK; WDM systems; chromatic dispersion; nonlinear tolerance; optical signal-to-noise ratio; polarisation mode dispersion; return-to-zero; system upgrade; Bandwidth; Bit error rate; Closed-form solution; Differential quadrature phase shift keying; Matched filters; Nonlinear optics; Optical filters; Optical noise; Optical receivers; Signal to noise ratio;
Conference_Titel :
Optical Fiber Communications Conference, 2003. OFC 2003
Print_ISBN :
1-55752-746-6
DOI :
10.1109/OFC.2003.1248339
