Accurate modeling of incoherent homodyne crosstalk in optically amplified systems - Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
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چکیده
A number of models with various degrees of accuracy were proposed in the literature for the evaluation of the probability density function @df) of the direct detection receiver photocurrent in optically amplified communication systems in the presence of N incoherent homodyne interferers, e.g. most recently 111. Previous models neglect the crosstalk-crosstalk and amplified spontaneous emission (ASE) noise-crosstalk beatings, as well as the direct detection of the crosstalk and the ASE noise. These effects become important at strong crosstalk values 13. This paper presents, for thefirst time, an accurate derivation of the photocurrent pdf, taking into account the aforementioned neglected terms. It is a generalization of the analysis presented in /2/ for one incoherent homodyne inteferer. The current model is compared with the experiment and is shown to be in excellent agreement. Finally, the approximate model / I / is compared to the current model and its range of validity is investigated.
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تاریخ انتشار 2004