Title :
Design of AWG Devices for All-Optical Time-Frequency Packing
Author :
Abrardo, A. ; Cincotti, Gabriella
Author_Institution :
Dept. of Inf. Eng., Univ. of Siena, Siena, Italy
Abstract :
We present the design guidelines for novel passive arrayed waveguide grating (AWG) devices to all-optically implement time-frequency packing techniques in orthogonal frequency division multiplexing (OFDM) systems. The proposed approach can increase the spectral efficiency in long-haul fiber links. We analyze the system performances, evaluating the maximum achievable information rate and spectral efficiency, and we found the optimal AWG layout to maximize the overall system capacity. We demonstrate, through simulations, that an overall 1.4 Tb/s transmission over 200 GHz bandwidth can be reached, using two polarizations, quadrature phase shift keying modulation, and digital feedback equalization.
Keywords :
OFDM modulation; arrayed waveguide gratings; optical links; AWG devices; all-optical time-frequency packing; digital feedback equalization; long-haul fiber links; orthogonal frequency division multiplexing systems; passive arrayed waveguide grating devices; polarizations; quadrature phase shift keying modulation; Arrayed waveguide gratings; Baseband; Modulation; OFDM; Optical filters; Optical pulses; Receivers; Frequency division multiplexing; orthogonal frequency-division multiplexing (OFDM); time division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2314176
