Title:
|
Efficient time gating in ultrafast optical TDM networks
|
Author:
|
Yazdani, Arash; Rincón Rivera, David; Sallent Ribes, Sebastián
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica; Universitat Politècnica de Catalunya. BAMPLA - Disseny i Avaluació de Xarxes i Serveis de Banda Ampla |
Abstract:
|
Ultrafast optical communication is the backbone of high-speed global networking infrastructure. Optical time division multiplexing (OTDM) is a popular technique for embedding data from many simultaneous users on a single optical channel. This paper studies the optimal clock signal used in optical time gating to extract the data of the desired user in an OTDM network. We show that the pulse width of the clock signal can be optimized to achieve a minimum bit error rate (BER) in these networks. In this paper, we assume that the optical clock signal used for time gating has jitter, and there is therefore a delay variation between the clock and data signals. We model this delay as a zero mean Gaussian random variable. Using this model, an analytical BER expression is derived for systems with Gaussian pulses. In the numerical results, we find the optimal values of the clock pulse width by evaluating the BER versus the pulse width for different variances of the delay. Simulation results are also presented to evaluate the accuracy of the analytical expression. |
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -multiplexing -Optical time division multiplexing (OTDM) -Time gating -Optical AND gate -Phase error -Bit error rate -CLOCK RECOVERY -GB/S -Multiplexatge |
Rights:
|
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
|
Article - Published version Article |
Share:
|
|