Title :
OCDM techniques for improved spectral efficiency
Author :
Sotobayashi, Hideyuki
Author_Institution :
Independent Administrative Instn., Commun. Res. Lab., Tokyo, Japan
Abstract :
OCDM techniques are applied to improve spectral efficiency. 1.6 bit/s/Hz spectral efficiency is obtained in an OCDM/WDM system by QPSK optical encoding/decoding along with ultrafast optical time-gating and optical thresholding in addition to polarization multiplexing.
Keywords :
code division multiplexing; high-speed optical techniques; interference suppression; optical fibre networks; quadrature phase shift keying; wavelength division multiplexing; 6.4 Tbit/s; C-band wavelength region; OCDM techniques; OCDM/WDM system; QPSK optical encoding/decoding; interference noise suppression; optical thresholding; polarization multiplexing; spectral efficiency; ultrafast optical time-gating; ultrafast photonic networks; Code division multiplexing; Interference; Optical filters; Optical mixing; Optical noise; Optical polarization; Optical sensors; Quadrature phase shift keying; Ultrafast optics; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1159576
