DocumentCode :
2591287
Title :
Reduction of optical beat interference and intensity noise in a subcarrier multiplexed optical fiber link by Miller linecoding
Author :
Alam, Mohammad Monzur ; Majumder, S.P.
Author_Institution :
Dept. of EEE, United Int. Univ. (UIU), Dhaka
fYear :
2007
fDate :
18-20 Nov. 2007
Firstpage :
1
Lastpage :
6
Abstract :
The performance analysis is presented for an optical transmission system with RF subcarrier multiplexing (SCM) for radio on fiber technology considering the effect of PM-IM conversion due to Mach-Zehnder modulator (MZM) and optical beat interference (OBI) generated during photodetection process. Delay modulation line code or Miller coding is applied to minimize the effect of OBI. The computed bit error rate (BER) performance results show that there is significant deterioration in system BER due to OBI and PM-IM conversion and the system suffers significant power penalty at a given BER. The penalty without linecoding is found to be approximately 5.8 dB, 11.0 dB, 13.5 dB, 15.0 dB, 17.0 dB for PM-IM conversion factor of -1, -2, -3, -4, - 5 and 18.0 dB, 18.5 dB, 20.5 dB, 21.5 dB, 22.0 dB for number of subcarriers of 2, 4, 8, 16, 32 respectively. It is also found that with Miller coding there is significant reduction in OBI induced power penalty for example, the above penalty values are 3.5 dB, 5.5 dB, 8.0 dB, 9.5 dB, 10.4 dB for Miller coded system.
Keywords :
error statistics; light interference; optical fibre networks; radio-over-fibre; subcarrier multiplexing; Mach-Zehnder modulator; Miller linecoding; PM-IM conversion; RF subcarrier multiplexing; bit error rate; delay modulation line code; intensity noise; optical beat interference reduction; optical transmission system; photodetection process; power penalty; radio-on-fiber technology; subcarrier multiplexed optical fiber link; Bit error rate; Delay effects; Delay lines; Noise reduction; Optical fibers; Optical modulation; Optical noise; Performance analysis; Radio frequency; Radiofrequency interference; Linecoding; Optical beat Interference (OBI); Optical link; PM-IM conversion; Subcarrier multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
High Capacity Optical Networks and Enabling Technologies, 2007. HONET 2007. International Symposium on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1828-2
Electronic_ISBN :
978-1-4244-1829-9
Type :
conf
DOI :
10.1109/HONET.2007.4600283
Filename :
4600283
Link To Document :
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