Affiliation: | a Instituto de Telecomunicações, Pólo de Aveiro, 3810-193 Aveiro, Portugalb Federal University of Technology, Parana, Av. Sete de Setembro, 3165, Curitiba, PR, CEP 80230-901, Brazilc Interdisciplinary Photonics Laboratories (iPL), University of Sydney, The School of Chemistry, F09, Camperdown, Sydney, NSW 2006, Australiad Nokia Siemens Networks Portugal S.A., 2720-093, Portugal |