Title :
OFDM-PON optical fiber access technologies
Author :
Qiu, Kun ; Xinwen Yi ; Zhang, Ling ; Zhang, Hongbo ; Deng, Mingliang ; Zhang, Chongfu
Author_Institution :
Key Lab. of Opt. Fiber Sensing & Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The introduction of OFDM into PON networks is to leverage the merits of OFDM to provide the flexibility and reduce the cost. In this paper, we present our latest works on OFDM-PON. Firstly, we propose and demonstrate a novel OFDM-PON upstream transmission architecture with traffic aggregation by orthogonal band multiplexing. The multiplexed 10-Gb/s OFDM signal is collectively received. We also conduct a proof-of-concept experiment to verify the architecture. Secondly, we propose and experimentally demonstrate wavelet packet transform based OFDM (WPT-OFDM) using real-valued transforms, which enables the cost-effective intensity modulation/direct detection (IM/DD). Unlike conventional FFT-based OFDM, the need for cyclic prefix is eliminated due to the time-frequency localization properties of the wavelet.
Keywords :
OFDM modulation; intensity modulation; multiplexing; optical fibre networks; optical modulation; telecommunication traffic; OFDM-PON upstream transmission architecture; WPT-OFDM; bit rate 10 Gbit/s; cost reduction; cyclic prefix; intensity modulation direct detection; optical fiber access technology; orthogonal band multiplexing; real valued transforms; spectral efficiency; time frequency localization; traffic aggregation; wavelet packet transform based OFDM; Abstracts; Frequency modulation; OFDM; Optical design; Optical fibers; Passive optical networks; OFDM; OLT; ONU; PON; modulation format; multiplexing; spectral efficiency; wavelet;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
