Accurate Q-factor estimation of optically amplified systems in the presence of waveform distortions

Author

Norimatsu, Seiji ; Maruoka, Masanori

Author_Institution

Graduate Sch. of Inf., Kyoto, Japan

Volume

20

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

19

Lastpage

27

Abstract

We present an accurate method for the Q-factor estimation even in the presence of waveform distortions in optically amplified systems. The method stands on the assumption that the dominant noises over the bit error rate (BER) are those superimposed on the nearest rails to the decision level. It is clarified that the assumption is usually satisfied. The results also show that, in numerical system evaluation, we should evaluate not only the eye opening but also the probability of occurrence of the rail level

Keywords

Q-factor; error statistics; laser theory; nonlinear distortion; optical fibre communication; optical noise; BER; Gaussian noise; Q measurement; Q-factor estimation; bit error rate; decision level; dominant noises; eye opening; numerical system evaluation; optical fiber communication; optical noise; optically amplified systems; rail level occurrence probability; superimposed noise; waveform distortions; Bit error rate; Distortion measurement; Noise level; Optical crosstalk; Optical distortion; Optical noise; Q factor; Rails; Stimulated emission; Time measurement;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.974814

Filename

974814