Open AccessA novel beat-noise-reducing en/decoding technology for a coherent 2-D OCDMA system
Author(s) -
Jilin Zheng,
Rong Wang,
Tao Pu,
Lin Lü,
Tao Fang,
Yun Cheng,
Xiangfei Chen
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.019264
Subject(s) - decoding methods , fiber bragg grating , beat (acoustics) , optics , computer science , bit error rate , code division multiple access , physics , electronic engineering , optical fiber , algorithm , telecommunications , engineering
A novel fiber Bragg grating (FBG)-based en/decoder for a coherent two-dimensional (2-D) wavelength-time (WT) optical code-division multiple-access (OCDMA) system is proposed to suppress the beat noise (BN). The feasibility of en/decoding function and the effectiveness of BN suppression are demonstrated by the simulation comparison between the conventional and proposed scheme, which are also further validated by en/decoding experiments with two users at a data rate of 2.5, 5 and 10 Gb/s respectively. The further numerical performance analysis of the proposed en/decoding method reveals the BER improvement compared with the conventional system.