Title :
Signal Remodulation of OFDM-QAM for Long Reach Carrier Distributed Passive Optical Networks
Author :
Chow, C.W. ; Yeh, C.H. ; Wang, C.H. ; Shih, F.Y. ; Chi, S.
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu
fDate :
6/1/2009 12:00:00 AM
Abstract :
The passive optical network (PON) using orthogonal frequency-division multiplexing (OFDM) is a subject of many research works recently. The OFDM signal is especially good for long reach (LR)-PON due to its high tolerance to chromatic dispersion and high spectral efficiency. We study, for the first time, the possibility of using OFDM for signal remodulation in LR-PONs. Three different colorless optical networking unit (ONU) architectures, electroabsorption modulator-based, reflective semiconductor optical amplifier-based and injection-locked Fabry-Perot laser diode-based ONUs, are tested and compared. Error-free operations are achieved in 100-km fiber transmission without dispersion compensation.
Keywords :
OFDM modulation; electro-optical modulation; electroabsorption; optical fibre dispersion; optical fibre networks; optical fibre testing; optical transmitters; quadrature amplitude modulation; semiconductor optical amplifiers; OFDM-QAM signal remodulation; ONU architecture; ONU testing; distance 100 km; electroabsorption modulator; error-free operation; fiber transmission; injection-locked Fabry-Perot laser diode; optical dispersion; optical networking unit; orthogonal frequency-division multiplexing; passive optical network; quadrature amplitude modulation; reflective semiconductor optical amplifier; Orthogonal frequency-division multiplexing (OFDM); passive optical networks (PONs); signal remodulation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2017205
