1. Photonics Research Center, University of Campinas, Campinas 13083-859, SP, Brazil
2. Gleb Wataghin Physics Institute, University of Campinas, Campinas 13083-859, SP, Brazil
3. Campus of São João da Boa Vista, State University of São Paulo, São João da Boa Vista 13876-750, Brazil
4. School of Electrical Engineering, University of Campinas, Campinas 13083-852, SP, Brazil
5. Corning Research & Development Corporation, One Science Drive, Corning, New York 14830, USA