Using Semiconductor-Optical Amplifiers With Constant Envelope WDM Signals

Author

Ciaramella, Ernesto ; D´Errico, Antonio ; Donzella, Valentina

Author_Institution

Scuola Superiore Sant´´Anna, Pisa

Volume

44

Issue

5

fYear

2008

fDate

5/1/2008 12:00:00 AM

Firstpage

403

Lastpage

409

Abstract

Semiconductor-optical amplifiers (SOAs) could be used in wavelength-division multiplexing (WDM) systems with constant envelope modulation formats. However if chromatic dispersion affects their constant envelope, WDM signals can interact via the SOA carrier density fluctuations, resulting into relevant penalty. We experimentally and theoretically investigate the operating conditions for SOA-based amplification with DPSK and POLSK modulation formats and clarify the role of input power, residual dispersion and modulation format. We also determine that, for a given format, the various detection schemes can result into very different impairments. These results can be used as guidelines for the system design.

Keywords

differential phase shift keying; optical fibre communication; optical fibre dispersion; optical modulation; semiconductor optical amplifiers; wavelength division multiplexing; DPSK modulation format; POLSK modulation format; SOA; WDM signals; carrier density fluctuations; chromatic dispersion; constant envelope modulation formats; residual dispersion; semiconductor optical amplifiers; wavelength-division multiplexing systems; Charge carrier density; Differential quadrature phase shift keying; Fluctuations; Optical amplifiers; Optical fiber communication; Optical fiber dispersion; Phase modulation; Polarization shift keying; Semiconductor optical amplifiers; Wavelength division multiplexing; Differential phase shift keying (DPSK); cross gain modulation (XGM); cross-phase modulation (XPM); optical fiber communication; polarization-shift keying (POLSK); semiconductor optical amplifiers (SOA);

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2007.914883

Filename

4459777