Performance degradation of 100 Gb/s PM-QPSK and 400 Gb/s PM-16QAM dual carrier coherent systems due to cascaded optical filters

Author

Al-Dalky, Rami ; Elrefaie, A. ; Landolsi, Taha ; Hassan, Mehdi

Author_Institution

American Univ. of Sharjah, Sharjah, United Arab Emirates

fYear

2013

Firstpage

1

Lastpage

6

Abstract

In this paper, we studied the impact of cascading optical filters on a dual-carrier 100 Gb/s and 400 Gb/s systems with 50 and 100 GHz channel spacing; respectively. Eye closure penalty (ECP) is used as a performance evaluation metric, where we use two types of filters: fiber Bragg grating (FBG) and thin-film filters (TFF). Simulation results indicate that at 6-dB ECP, the number of cascaded filters for dual-carrier 100 Gb/s polarization-multiplexed quadrature phase shift keying (PM-QPSK) at 50 GHz channel spacing system is 4 TFF and 2 FBG. In Addition, simulation results indicate that at 6-dB ECP, the number of cascaded filters for dual-carrier 400 Gb/s polarization-multiplexed 16-ary quadrature amplitude modulation (PM-16QAM) system at 100 GHz channel spacing is only a single TFF.

Keywords

Bragg gratings; cascade networks; channel spacing; optical communication equipment; optical fibre filters; optical films; optical modulation; performance evaluation; quadrature amplitude modulation; quadrature phase shift keying; ECP; FBG; PM-16QAM; PM-QPSK; TFF; bit rate 100 Gbit/s; bit rate 400 Gbit/s; cascaded optical filters; channel spacing system; dual carrier coherent systems; eye closure penalty; fiber Bragg grating; frequency 100 GHz; frequency 50 GHz; performance degradation; performance evaluation metric; polarization-multiplexed 16-ary quadrature amplitude modulation system; polarization-multiplexed quadrature phase shift keying; thin-film filters; Bandwidth; Bragg gratings; Channel spacing; Dispersion; Phase shift keying; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Signal Processing, and their Applications (ICCSPA), 2013 1st International Conference on

Conference_Location

Sharjah

Print_ISBN

978-1-4673-2820-3

Type

conf

DOI

10.1109/ICCSPA.2013.6487301

Filename

6487301