Title :
Advanced Modulation Formats and Digital Signal Processing in Optical Communications
Author :
Kahn, Joseph M. ; Ip, Ezra
Author_Institution :
Stanford Univ., Stanford
Abstract :
Coherent detection enables near-ideal compensation of linear channel impairments by linear digital filters. Sampling at twice the symbol rate is sufficient. Digital feedforward carrier recovery can tolerate significantly more laser phase noise than phase-locked loops.
Keywords :
laser noise; optical fibre communication; optical modulation; optical receivers; optical signal detection; phase noise; signal sampling; telecommunication channels; coherent detection; digital feedforward carrier recovery; digital signal processing; laser phase noise; linear channel impairment; linear digital filters; modulation formats; near-ideal compensation; optical communications; optical receiver; signal sampling; Digital filters; Digital signal processing; Laser noise; Modulation; Optical fiber communication; Optical receivers; Phase estimation; Phase locked loops; Phase noise; Sampling methods;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4452619
