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

Volume

32

Issue

10

fYear

2014

fDate

15-May-14

Firstpage

1951

Lastpage

1959

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2014.2314176

Filename

6782682