Applications of the OCATA time domain digital twin: from QoT estimation to failure management

被引:3
|
作者
Devigili, M. [1 ]
Ruiz, M. [1 ]
Costa, N. [2 ]
Castro, C. [3 ]
Napoli, A. [3 ]
Pedro, J. [2 ,4 ]
Velasco, L. [1 ]
机构
[1] Univ Politecn Catalunya UPC, Opt Commun Grp GCO, Barcelona, Spain
[2] Infinera Unipessoal Lda, P-2790078 Carnaxide, Portugal
[3] Infinera, Munich, Germany
[4] Inst Super Tecn, Inst Telecomunicacoes, P-3810193 Lisbon, Portugal
基金
欧盟地平线“2020”;
关键词
Estimation; Optical receivers; Optical transmitters; Optical fiber networks; Optical variables measurement; Feature extraction; Digital twins; IDENTIFICATION; TRANSMISSION; MODEL;
D O I
10.1364/JOCN.507128
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Optical in-phase and quadrature (IQ) constellations enclose valuable information regarding the optical elements traversed by the optical signal. Such information can be extracted and exploited by algorithms and models within an optical layer digital twin. In this paper, we investigate the feasibility of extracting information from IQ constellations and its use for both accurate quality of transmission (QoT) estimation and efficient failure management within. First, we observe the correlations between the measured QoT of lightpaths and the value of specific features extracted from IQ constellation samples collected from the optical receiver and design deep neural network (DNN) models for QoT estimation. Next, specific DNN models and algorithms that exploit IQ constellation features are proposed for soft-failure detection, identification, and severity estimation. Results from both simulation and experiments show noticeable accuracy on the estimation of QoT and on the prediction of failures affecting the transmitter, optical filters, and amplifiers.
引用
收藏
页码:221 / 232
页数:12
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