Title :
On the optimum detection threshold for minimum bit error rate due to four-wave mixing in a WDM system
Author :
Sarkar, Santonu ; Das, Nikhil R.
Author_Institution :
Acad. of Technol., Hooghly, India
Abstract :
In this paper, optimum detection threshold for minimum bit error rate (BER) due to four-wave mixing is calculated taking the probability distribution of power depletion as binomial and considering nonuniform channel spacing. Nondegenerate four-wave mixing has been assumed for the worst-case analysis. The effects of the number of interfering channels, receiver noise, and input power on the BER in the presence of four-wave mixing are studied. The optimum detection threshold for minimum BER is studied as a function of the number of channels. This optimum threshold significantly deviates from the conventional threshold in the Gaussian distribution approximation as the channel number increases beyond three.
Keywords :
Gaussian distribution; approximation theory; error statistics; multiwave mixing; optical signal detection; statistical distributions; wavelength division multiplexing; BER; Gaussian distribution approximation; WDM system; binomial channel spacing; interfering channels; minimum bit error rate; nondegenerate four-wave mixing; nonuniform channel spacing; optimum detection threshold; power depletion; probability distribution; receiver noise; Bit error rate; Cross talk; Detection threshold; Four-wave mixing; WDM;
Journal_Title :
Optical Communications and Networking, IEEE/OSA Journal of
DOI :
10.1364/JOCN.5.000370
