Polarization modulated direct detection optical transmission systems

Author

Betti, S. ; de Marchis, G. ; Iannone, E.

Author_Institution

Fondazione Ugo Bordoni, Rome, Italy

Volume

10

Issue

12

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1985

Lastpage

1997

Abstract

A novel polarization modulated direct detection (PM-DD) system suitable both for binary and multilevel transmission is presented. At the transmitter the optical field is polarization modulated by a standard modulator. The receiver is based on the estimation of the Stokes parameters of the received optical field by means of a direct-detection optical front end and baseband electrical processing. The Poincare sphere rotation induced by the fiber is compensated by means of a purely electronic algorithm and the decision is performed in the Stokes space. The system performance is evaluated by an analytical model when the only relevant noise source is the receiver thermal noise and when erbium-doped optical amplifiers introduce amplified spontaneous emission (ASE) noise. The system is completely compatible with a direct-detection-based optical network, and it is possible to implement efficient multilevel modulation formats

Keywords

light polarisation; optical links; optical modulation; random noise; superradiance; thermal noise; ASE noise; Er doped optical amplifiers; PM-DD optical transmission systems; Poincare sphere rotation; Stokes parameters; Stokes space; amplified spontaneous emission; analytical model; baseband electrical processing; binary transmission; electronic algorithm; fiber; multilevel transmission; noise source; optical field; optical front end; polarization modulated direct detection; receiver; thermal noise; transmitter; Baseband; Optical detectors; Optical fiber polarization; Optical modulation; Optical noise; Optical polarization; Optical receivers; Optical transmitters; Stokes parameters; System performance;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.202809

Filename

202809