Title :
Optimal bandwidth in optical FSK system influenced by laser phase noise
Author :
Stefanovic, Mihajlo ; Stojanovic, Nebojsa ; Milic, Dejan ; Petrovic, Dragana
Author_Institution :
Fac. of Electron. Eng., Nis Univ., Serbia
Abstract :
In this paper, an optical FSK system with TFS (two-filter structure) also known as dual-filter FSK is observed in the presence of laser phase noise. Sensitivity of the receiver is shown as a function of IF bandwidth and a bandwidth of the low-pass postdetection filter. It is shown that there is an optimal pair of bandwidths witch minimizes required receiver sensitivity: a few figures for different amounts of phase noise are given. The results in this paper are based on truncated Taylor expansion method
Keywords :
frequency shift keying; laser noise; optical fibre communication; optical receivers; phase noise; sensitivity; IF bandwidth; dual-filter FSK; laser phase noise; low-pass postdetection filter bandwidth; optical FSK system; optimal bandwidth; phase noise; receiver sensitivity; truncated Taylor expansion method; two-filter structure; Bandwidth; Frequency shift keying; Laser noise; Low pass filters; Optical filters; Optical noise; Optical receivers; Optical sensors; Phase noise; Taylor series;
Conference_Titel :
Electrotechnical Conference, 1998. MELECON 98., 9th Mediterranean
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-3879-0
DOI :
10.1109/MELCON.1998.699472
