All-optical DPSK signal regeneration based on cross-phase modulation

Author

Striegler, A. ; Schmauss, B.

Author_Institution

Univ. of Erlangen-Nuremberg, Erlangen, Germany

Volume

16

Issue

4

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

1083

Lastpage

1085

Abstract

We present a concept for all-optical differential phase-shift keying (DPSK) signal regeneration, which reduces amplitude jitter and preserves phase information. At first, we consider a configuration to regenerate optical signals based on spectral broadening by self-phase modulation (SPM). An analytical approach of the induced phase shift demonstrates why SPM is not suitable for DPSK signal regeneration. We derive conditions for DPSK signal regeneration and present a configuration based on cross-phase modulation. Amplitude jitter is reduced effectively while preserving DPSK phase information. Numerical simulations prove the results and demonstrate the performance of DPSK signal regeneration.

Keywords

differential phase shift keying; jitter; optical fibre communication; optical repeaters; self-phase modulation; all-optical DPSK signal regeneration; all-optical differential phase-shift keying signal regeneration; amplitude jitter; cross-phase modulation; induced phase shift; phase information; self-phase modulation; spectral broadening; Amplitude modulation; Decoding; Differential quadrature phase shift keying; Filtering; Jitter; Optical filters; Optical interferometry; Phase modulation; Pulse modulation; Scanning probe microscopy;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.824934

Filename

1281878