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Type: Artigo de periódico
Title: Simple feed-forward wide-range frequency offset estimator for optical coherent receivers
Author: Diniz, JCM
de Oliveira, JCRF
Rosa, ES
Ribeiro, VB
Parahyba, VES
da Silva, R
da Silva, EP
de Carvalho, LHH
Herbster, AF
Bordonalli, AC
Abstract: We propose and experimentally demonstrate a hardware-efficient, feed-forward, wide-range frequency offset estimator for DSP-based optical coherent receivers. Using a simple relationship of signal spectrum, this estimator is capable to estimate offsets in a range compliant with OIF requirements. Obtained results show that this estimator has a high tolerance to spectrum asymmetry caused by electrical and optical signal filtering, even when using return-to-zero pulse shaping. (C)2011 Optical Society of America
Country: EUA
Editor: Optical Soc Amer
Rights: aberto
Date Issue: 2011
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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