Title :
Spectral pre-distortion with FPGA and DAC at 448-Gb/s DP-16QAM improving nonlinear threshold power
Author :
Idler, W. ; Buchali, Fred ; Schuh, Karsten ; Roesener, Detlef ; Lach, E. ; Leven, Andreas
Author_Institution :
Bell Labs., Alcatel-Lucent, Stuttgart, Germany
Abstract :
Non-linear tolerance measurements of DP-16QAM (28 Gbd) signals with transmitter based digital signal pre-distortion are reported, showing systematic performance gains of fibre launch power versus pre-distortion (~1.5 dB for 6 uncompensated SMF spans) and a distinct reduction of the non-linear threshold spans scaling factor.
Keywords :
digital-analogue conversion; field programmable gate arrays; quadrature amplitude modulation; DAC; DP-16QAM; FPGA; bit rate 448 Gbit/s; fibre launch power; nonlinear threshold power; nonlinear threshold spans scaling factor; nonlinear tolerance measurement; spectral predistortion; transmitter based digital signal predistortion; Gain; Nonlinear optics; Optical attenuators; Optical fiber filters; Optical fibers; Optical transmitters;
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
