1. CEFET Campus Nova Friburgo,Electrical Engineering Department,Nova Friburgo,RJ,Brazil
2. Paris Research Center Huawei Technologies Boulogne,Optical Communication Techn. Lab,Billancourt,France
3. Engineering School Fluminense Federal University (UFF),Niterói,RJ,Brazil
4. IMT Atlantique - Campus Brest,Département Optique,Brest,France