1. Matériaux et Télécommunications (INRS-EMT),Institut National de la Recherche Scientifique - Centre Énergie,Varennes, Quebec,Canada,J3X 1P7
2. Polytechnique Montreal,Department of Engineering Physics, Department of Electrical Engineering,Quebec,Canada,H3C 3A7
3. University of Palermo,Department of Energy, Information Engineering and Mathematical Models,Palermo,Italy
4. City University of Hong Kong,Department of Physics,Hong Kong SAR,China
5. University of Chinese Academy of Sciences,Beijing,China,100049
6. Swinburne University of Technology,Optical Sciences Centre,Hawthorn,VIC,Australia
7. University of Strathclyde,Institute of Photonics,Department of Physics,Glasgow,United Kingdom,G11RD
8. NTT Basic Research Laboratories & NTT Research Center for Theoretical Quantum Physics, NTT Corporation,Atsugishi, Kanagawa,Japan,243-0198