Nonlinear distortions due to the "dispersive" transmission of SCM optical signals in the presence of chirping effect: an accurate analysis

Author

Betti, S. ; Bravi, E. ; Giaconi, M.

Author_Institution

Fondazione Ugo Bordoni, Rome, Italy

Volume

9

Issue

12

fYear

1997

Firstpage

1640

Lastpage

1642

Abstract

In hybrid multichannel amplitude modulation-quadrature amplitude modulation (AM/QAM) optical fiber transmission systems based on subcarrier-multiplexing (SCM) technique, the performance is affected by the joint action of the AM-FM conversion due to the chirping effect in semiconductor laser and the chromatic dispersion of the optical fiber. In this letter, analytical expressions of the power spectral density of the nonlinearity distortions due to "dispersive" transmission of chirped intensity-modulated signals are calculated, assuming that the message modulating the semiconductor laser is a Gaussian process.

Keywords

amplitude modulation; chirp modulation; nonlinear optics; optical fibre communication; optical fibre dispersion; optical modulation; quadrature amplitude modulation; semiconductor lasers; subcarrier multiplexing; AM-FM conversion; Gaussian process; SCM; SCM optical signals; accurate analysis; amplitude modulation; chirped intensity-modulated signals; chirping effect; chromatic dispersion; dispersive transmission; hybrid multichannel AM/QAM optical fiber transmission systems; nonlinear distortions; nonlinearity distortions; power spectral density; quadrature amplitude modulation; semiconductor laser; subcarrier-multiplexing; Amplitude modulation; Chirp modulation; Chromatic dispersion; Fiber lasers; Laser noise; Nonlinear distortion; Optical fibers; Quadrature amplitude modulation; Semiconductor lasers; Signal analysis;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.643296

Filename

643296