Title :
Pre-equalization for optical 16-QAM in a vector modulator
Author :
Kamio, Yukiyoshi ; Nakamura, Moriya ; Miyazaki, Tetsuya
Author_Institution :
Nat. Inst. of inf. & Commun. Technol. (NICT), Koganei
Abstract :
We investigated the performance of electric pre-equalization to compensate inter-symbol-interference (ISI) caused in electrical multilevel 16-QAM to a standard vector modulator. Drastically clear constellation was obtained experimentally by applying 16-taps finite impulse response filter technique.
Keywords :
equalisers; optical communication equipment; optical modulation; quadrature amplitude modulation; electric pre-equalization; electrical multilevel 16-QAM; finite impulse response filter technique; intersymbol interference; optical pre-equalization; vector modulator; Demodulation; Digital modulation; Equalizers; Finite impulse response filter; Intersymbol interference; Optical feedback; Optical filters; Optical modulation; Optical signal processing; Quadrature amplitude modulation;
Conference_Titel :
Opto-Electronics and Communications Conference, 2008 and the 2008 Australian Conference on Optical Fibre Technology. OECC/ACOFT 2008. Joint conference of the
Conference_Location :
Sydney
Print_ISBN :
978-0-85825-807-5
Electronic_ISBN :
978-0-85825-807-5
DOI :
10.1109/OECCACOFT.2008.4610506
