Reduced-bandwidth duobinary differential continuous-phase Modulation format for optical communications

Author

Boivin, David ; Hanna, Marc ; Barry, John R.

Author_Institution

FEMTO-ST/GTL-CNRS Telecom, Metz, France

Volume

17

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1331

Lastpage

1333

Abstract

We demonstrate a new modulation format based on differential phase-shift keying (DPSK) with a duobinary-shaped modulating signal for applications in optical communications. Compared to conventional DPSK and using the 20-dB full-width criterion, numerical and experimental data show a bandwidth reduction by a factor of two resulting in a better tolerance to group-velocity dispersion but at the expense of a back-to-back sensitivity degradation of 3.5 dB.

Keywords

continuous phase modulation; differential phase shift keying; optical fibre communication; optical fibre dispersion; 20 dB; DPSK; differential phase-shift keying; group-velocity dispersion; optical communications; reduced-bandwidth duobinary differential continuous-phase modulation format; Bandwidth; Differential quadrature phase shift keying; Intensity modulation; Optical fiber communication; Optical filters; Optical interferometry; Optical modulation; Optical receivers; Optical sensors; Ultrafast optics; Differential phase-shift keying (DPSK); duobinary modulation; modulation formats; optical fiber communications;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.846572

Filename

1432819