Performance of multilevel modulation formats in 92 Gb/s systems in the presence of PMD and nonlinear effects

Author

Abu Taher, Kazi ; Majumder, Satya P. ; Azizur Rahman, B.M.

Author_Institution

Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh

fYear

2014

fDate

10-12 April 2014

Firstpage

1

Lastpage

4

Abstract

We simulated two multilevel modulation formats in optical fiber systems in the presence of varying polarization mode dispersion (PMD) and fiber nonlinearities. Carrier suppressed return-to-zero differential quadrature phase shift keying (CSRZ-DQPSK) and polarization shift keying (PolSK) formats are simulated. The maximum data rate used in the system is 92 Gb/s and the length of the fiber is kept fixed at 100 km. Dispersion compensated standard communication fiber models are used in the simulations. Monte Carlo method is used for the simulation where the PMD coefficients are varied from 0 to 2 ps/sqrt(km). For simulating nonlinear coefficients, 0.1 and 1.0 1/W/km are used for the low and high nonlinearities respectively. The performances of the modulating formats are compared in terms of bit error rate (BER). The results show that the PolSK system possesses better PMD tolerance in the presence of nonlinearities.

Keywords

Monte Carlo methods; error statistics; optical fibre communication; optical fibre dispersion; optical modulation; quadrature phase shift keying; BER; CSRZ-DQPSK; Monte Carlo method; PMD; PolSK; bit error rate; bit rate 92 Gbit/s; carrier suppressed return-to-zero differential quadrature phase shift keying; multilevel modulation formats; nonlinear effects; optical fiber systems; polarization mode dispersion; polarization shift keying; size 100 km; Optical fiber amplifiers; Optical fiber dispersion; Optical modulation; Optical polarization; DQPSK; PolSK; Polarization mode dispersion compensation; modulation formats; optical communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering and Information & Communication Technology (ICEEICT), 2014 International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4799-4820-8

Type

conf

DOI

10.1109/ICEEICT.2014.6919043

Filename

6919043