1. Laboratory WOCA (Wireless and Optical Convergent Access)National Institute of Telecommunications (Inatel)João de Camargo Avenue, 510Santa Rita do Sapucaí‐MGBrazil
2. Federal University of ItajubáAv. BPS 1303Itajubá‐MGBrazil
3. Department of Photonics EngineeringTechnical University of DenmarkØrstedPlads, Building 343, 2800 Kgs. LyngbyDenmark