Title :
A novel analysis technique for coherent FSK lightwave systems
Author :
Tonguz, Ozan K. ; Kazovsky, Leonid G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
The authors present a simple approximate analysis of frequency-shift keying (FSK) coherent optical communications systems and obtain a closed-form estimate of the bit error rate. The inaccuracy of the approximate analysis is about 1 dB. The sensitivity penalty prediction of the approximate analysis is also within 1 dB of the accurate analysis for linewidths up to 100%.<>
Keywords :
frequency shift keying; optical communication equipment; receivers; sensitivity; Gaussian approximation; approximate analysis; bit error rate; closed-form estimate; coherent FSK lightwave systems; coherent optical communications systems; linewidths; sensitivity penalty prediction; Additive noise; Bit error rate; Frequency shift keying; Gaussian approximation; Gaussian noise; Laser noise; Optical filters; Optical receivers; Optical transmitters; Phase noise;
Journal_Title :
Photonics Technology Letters, IEEE
