DPSK Regeneration at 40 Gb/s and Beyond Using a Fiber-Sagnac Interferometer

Author

Kouloumentas, Christos ; Bougioukos, Marios ; Maziotis, Alexandros ; Avramopoulos, Hercules

Author_Institution

Photonics Commun. Res. Lab., Nat. Tech. Univ. of Athens, Athens, Greece

Volume

22

Issue

16

fYear

2010

Firstpage

1187

Lastpage

1189

Abstract

We analyze the experimental demonstration of a phase-incoherent regeneration scheme for differential phase-shift keying signals at 40 Gb/s. The scheme is based on decoding of the input signal by a 1-bit delay interferometer and subsequent optical remodulation using a fiber-Sagnac interferometer. Power penalty improvement up to 3 dB is reported for phase, amplitude, and amplified spontaneous emission noise loaded signals. Simulation results are in agreement with the experimental findings, and reveal the capability of extending the method at ultrahigh data rates.

Keywords

Sagnac interferometers; differential phase shift keying; optical communication equipment; optical modulation; optical repeaters; superradiance; DPSK regeneration; amplified spontaneous emission noise; bit rate 40 Gbit/s; delay interferometer; differential phase shift keying; fiber-Sagnac Interferometer; optical remodulation; phase-incoherent regeneration; power penalty improvement; Differential phase-shift keying (DPSK) regenerator; nonlinear Sagnac interferometer; nonlinear optical loop mirror;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2050875

Filename

5471124