A Technique for Rephasing $,+,$ 2R Regeneration of 40-Gb/s NRZ-DPSK Data

Author

Awad, Ehab S.

Author_Institution

Cairo Univ., Cairo

Volume

20

Issue

10

fYear

2008

fDate

5/15/2008 12:00:00 AM

Firstpage

848

Lastpage

850

Abstract

A novel technique for rephasing, reshaping, and reamplifying (Rp + 2R) of nonreturn-to-zero differential phase- shift keying (NRZ-DPSK) data is demonstrated. The regenerator operation and performance are evaluated using numerical simulations. The system can regenerate 40-Gb/s NRZ-DPSK data degraded with both random amplitude and phase noise (linear or nonlinear). Regenerated NRZ-DPSK has the same original data pattern and wavelength. The DPSK quality-factor and optical signal-to-noise ratio (OSNR) improves significantly, and the output differential phase error is very small. The bit-error ratio (BER) shows improvement of the received data OSNR ranging from 9.5 dB at 10^-4 BER up to 10.5 dB at 10^-9 BER.

Keywords

Q-factor; differential phase shift keying; error statistics; optical fibre communication; optical information processing; phase noise; 2R regeneration; NRZ-DPSK data; bit rate 40 Gbit/s; bit-error ratio; data reamplifying; data rephasing; differential phase error; nonreturn-to-zero differential phase-shift keying; optical signal-to-noise ratio; phase noise; quality-factor; random amplitude; regenerator; Bit error rate; Degradation; Differential quadrature phase shift keying; Nonlinear optics; Numerical simulation; Optical noise; Optical receivers; Phase noise; Repeaters; Signal to noise ratio; Differential phase-shift keying (DPSK) 3R regeneration; nonlinear optical signal processing; optical communications;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.921828

Filename

4494579

A Technique for Rephasing 2R Regeneration of 40-Gb/s NRZ-DPSK Data

Awad, Ehab S.

jour

A Technique for Rephasing $,+,$ 2R Regeneration of 40-Gb/s NRZ-DPSK Data