Title :
Degradation of Bi-Directional Single Fiber Transmission in WDM-PON Due to Beat Noise
Author :
Hu, Hanwu ; Anis, Hanan
Author_Institution :
Univ. of Ottawa, Ottawa
fDate :
4/15/2008 12:00:00 AM
Abstract :
This paper presents a general formulation for the impact of back-reflection in wavelength division multiplexing-passive optical networks (WDM-PON) access networks. The analysis is applied to various wavelength-independent optical network unit (ONU) configurations such as amplified spontaneous emission (ASE)-locked Fabry-Perot (FP) lasers, reflective semiconductor optical amplifiers or injection locked FP using the downstream signal. The power penalty due to beat noise and its dependence on relative intensity noise, transmitter linewidth, and receiver bandwidth is investigated. The optimal gain at the ONU that minimizes the effect of beat noise is also found. The results show that the power penalty decreases as the linewidth of the the optical line terminal (OLT) and ONU light source increase.
Keywords :
optical fibre networks; optical receivers; optical transmitters; wavelength division multiplexing; WDM-PON; beat noise; bidirectional single fiber transmission; downstream signal; optical line terminal; optical network unit configurations; power penalty; receiver bandwidth; relative intensity noise; transmitter linewidth; wavelength division multiplexing-passive optical networks; Bidirectional control; Degradation; Optical fiber networks; Optical network units; Optical noise; Optical receivers; Optical transmitters; Semiconductor device noise; Signal analysis; Wavelength division multiplexing; Back-reflection; bandwidth; beat noise; gain; injection locking; linewidth; power penalty;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2008.919434
