Title :
Four-Wave Mixing degradation compensation with digital coherent detection in optical amplifier repeater system
Author :
Nishiuchi, Kazuhumi ; Liang, Jing ; Iwashita, Katsushi
Author_Institution :
Kochi Univ. of Technol., Kami, Japan
Abstract :
Two ASK-modulated optical signals are transmitted through dispersion-shifted fibers with an optical amplifier repeater. The transmitted signals are detected by heterodyne detection with phase-locked local oscillators. The detected individual signals are compensated by backward propagation method. The FWM-crosstalk ratio is improved from 12 dB to 17 dB and eye-diagrams are improved.
Keywords :
amplifiers; heterodyne detection; mixers (circuits); phase locked oscillators; ASK-modulated optical signal; FWM-crosstalk ratio; backward propagation method; digital coherent detection; dispersion-shifted fiber; eye-diagrams; four-wave mixing degradation compensation; heterodyne detection; optical amplifier repeater system; phase-locked local oscillator; transmitted signal; Optical fibers; Optical filters; Optical mixing; Optical receivers; Optical sensors; Optical signal processing;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682792
