Title :
DSP-complexity reduction of QAM-based coherent optical networks enabled by seed lightwave distribution
Author :
Sakaguchi, Jun ; Kumagai, Motohiro ; Ying Li ; Ido, Tetsuya ; Awaji, Yoshinari ; Wada, Naoya
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan
Abstract :
A new network scheme employing stable seed lightwave distribution is investigated for reducing QAM demodulation complexity. We perform 150 km seed distribution before 100 km WDM-PDM-64QAM transmission and achieve simple demodulation without phase estimation.
Keywords :
communication complexity; demodulation; light coherence; optical fibre networks; optical fibre polarisation; optical information processing; optical modulation; quadrature amplitude modulation; wavelength division multiplexing; DSP-complexity reduction; QAM demodulation complexity reduction; QAM-based coherent optical networks; WDM-PDM-64QAM transmission; stable seed lightwave distribution; Adaptive optics; Digital signal processing; Optical fibers; Optical filters; Optical receivers; Quadrature amplitude modulation; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
