Title :
System impact of parametric gain: a novel method for the BER evaluation
Author :
Bosco, G. ; Carena, A. ; Curri, V. ; Gaudino, R. ; Poggiolini, P. ; Benedetto, S.
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino, Italy
Abstract :
A novel method to evaluate the bit error rate (BER) in optical links is described. It analyzes systems limited by amplified spontaneous emission (ASE) noise, enhanced by the non-linear parametric gain (PG) effect, and allows one to compute the exact error probability, given a generic optical noise spectral density at the input of a direct detection optical receiver. The method has been employed to evaluate the impact of PG on a 10 Gb/s per channel long-haul multi-wavelength system. It has also been used to show how the system performance evaluation based on the Q-factor Gaussian approximation may lead to erroneous BER evaluations
Keywords :
Amplification; Approximation theory; Error statistics; Gaussian processes; Intensity modulation; Karhunen-Loeve transforms; Optical fiber networks; Optical links; Optical noise; Optical receivers; Optical signal detection; Q-factor; Series (mathematics); Superradiance; Wavelength division multiplexing; 10 Gbit/s; BER evaluation; Karhunen-Loeve series expansion; Q-factor Gaussian approximation; WDM; amplified spontaneous emission noise; bit error rate; direct detection optical receiver; exact error probability; long-haul multi-wavelength system; nonlinear parametric gain effect; optical links; optical noise spectral density; parametric gain; system performance evaluation; Bit error rate; Error probability; Optical computing; Optical detectors; Optical fiber communication; Optical noise; Optical receivers; Q factor; Spontaneous emission; System performance;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853581
