Title :
Higher-order multilevel signal transmission using coherent receiver with digital-delay detection
Author_Institution :
Central Res. Lab., Hitachi Ltd., Yokohama, Japan
Abstract :
The use of digital-delay detection for coherently received higher-order QAM signals is an attractive technique to improve phase noise and IF offset tolerance. The paper reviews its concept, implementation and performance improvement with experimental results.
Keywords :
delays; optical receivers; quadrature amplitude modulation; IF offset tolerance; coherent receiver; digital-delay detection; higher-order QAM signals; higher-order multilevel signal transmission; performance improvement; phase noise; Nonlinear optics; Optical polarization; Optical receivers; Phase noise; Quadrature amplitude modulation;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
