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Effect of Linewidth on BER Performance of RoF System

Author(s):

Arun Malik , SBIET, Fatehpur Pundri, Kaithal; Matish Garg, SBIET, Fatehpur Pundri, Kaithal

Keywords:

RoF, BER, MZM, Dispersion, Phase Noise

Abstract

In this paper, performance of radio-over-fiber (RoF) links employing intensity modulation has been investigated in terms of bit error rate (BER). An analytical model including dispersion, laser and radio frequency (RF) oscillator phase noise is constructed to estimate the BER performance for 64-quadrature amplitude modulation (QAM) based RoF system. It has been observed that RF oscillator linewidth and percentage of received power affect the BER significantly. BER deteriorates rapidly as value of percentage of received power increases but for increased RF oscillator linewidths specifically above 1Hz, the BER degrades to great extents which is not desirable for efficient communication system. BER does not change significantly as laser linewidth varies. Percentage of received power is more decisive factor for BER of 64-quadrature amplitude modulation (QAM) based RoF system.

Other Details

Paper ID: IJSRDV3I30103
Published in: Volume : 3, Issue : 3
Publication Date: 01/06/2015
Page(s): 28-30

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