Impact of group-delay ripple in transmission systems including phase-modulated formats

Author

Liu, Xiang ; Mollenauer, Linn F. ; Wei, Xing

Author_Institution

Lucent Technol., Bell Labs., Holmdel, NJ, USA

Volume

16

Issue

1

fYear

2004

Firstpage

305

Lastpage

307

Abstract

We derive an analytic expression for the signal distortion that results from the effects of group-delay ripple (GDR). When reduced to its simplified first-order form, our expression provides a clear physical picture of how the signal is affected by the ripple period, magnitude, and how the mean signal frequency is located with respect to the ripple peaks. We also find the optical signal-to-noise ratio penalty associated with the ripple to be dependent on the phase relationship among the signal bits. Particular analysis on the impact of GDR in differential phase-shift keying transmission is presented.

Keywords

differential phase shift keying; intersymbol interference; optical fibre communication; optical fibre dispersion; optical fibre filters; wavelength division multiplexing; differential phase-shift keying; dispersion compensation; dispersive element; eye-closure penalty; group-delay ripple; high-speed optical communication; intersymbol interference; optical signal-to-noise ratio penalty; phase-modulated formats; phasor diagrams; ripple magnitude; ripple period; signal distortion; simplified first-order form; Delay; Differential phase shift keying; Differential quadrature phase shift keying; Frequency; Optical distortion; Optical fiber communication; Optical filters; Phase distortion; Signal analysis; Signal to noise ratio;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.819368

Filename

1256033