DocumentCode :
3639594
Title :
Optical transmission performance for DML considering laser chirp and fiber dispersion using AMOOFDM
Author :
Ahmed Gharba;Philippe Chanclou;Meryem Ouzzif;Luiz Anet Neto; Rui Xia;Naveena Genay;Benoit Charbonnier;Maryline Hélard;Jérôme Le Masson
Author_Institution :
France Té
fYear :
2010
Firstpage :
1022
Lastpage :
1026
Abstract :
Fiber dispersion coupled with chirp parameter of the emitting laser impacts the optical transmission system performance. Fiber dispersion causes the propagating pulses to spread and overlap, and the chirp parameter produces a wavelength shift arising from the intensity variation of the directly modulated laser (DML). For optical transmission systems, orthogonal frequency division multiplexing (OFDM) modulation technique has proved to be an attractive approach to overcome optical fiber impairments in optical access networks as well as in long haul optical networks. Coupled with the Levin Campello bit-loading algorithm, adaptively modulated optical orthogonal frequency division multiplexing (AMOOFDM) optimizes the data rate by taking into consideration the channel quality of each subcarrier. This paper shows system performance for optical links starting with an optical back-to-back (BtB) connection and ending with 125 km of single mode fiber (SMF) with a fixed optical budget of 30 dB for all distances.
Keywords :
"Optical fibers","Optical fiber networks","Frequency response","Optical fiber dispersion","Optical modulation"
Publisher :
ieee
Conference_Titel :
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2010 International Congress on
ISSN :
2157-0221
Print_ISBN :
978-1-4244-7285-7
Electronic_ISBN :
2157-023X
Type :
conf
DOI :
10.1109/ICUMT.2010.5676502
Filename :
5676502
Link To Document :
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