Title :
Experimental verification of the mitigation of intra-channel nonlinear impairments based on digital spectral shaping with 50Gbps PM-iRZ-QPSK signal over 10,080km transmission
Author :
Ogasahara, Daisaku ; Fujisawa, Shinsuke ; Nakano, T. ; Le Taillandier de Gabory, Emmanuel ; Inada, Yoshihisa ; Ito, Takao ; Fukuchi, Kiyoshi
Author_Institution :
Green Platform Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
We propose a method of spectral shaping at the transmitter to mitigate intra-channel nonlinear impairments. Experimental results exhibit 2dB increase of the optimal launch power and nonlinear tolerance enhancement with digital spectral shaping of a 50Gbps PM-iRZ-QPSK signal generated with a high-speed DAC-based transmitter over a 10,080km link.
Keywords :
digital-analogue conversion; multiplexing; nonlinear optics; optical fibre communication; optical information processing; optical links; optical transmitters; quadrature phase shift keying; PM-iRZ-QPSK signal; bit rate 50 Gbit/s; digital spectral shaping; distance 10080 km; high-speed DAC-based transmitter; intrachannel nonlinear impairment mitigation; nonlinear tolerance enhancement; optical link; optimal launch power; polarization-multiplexed RZ QPSK; Integrated optics; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical fiber communication; Optical polarization; Optical sensors;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
