1. Key Laboratory of In-Fiber Integrated Optics
2. Ministry of Education
3. College of Science
4. Harbin Engineering University
5. Harbin 150001
6. Department of Physics
7. Harbin Institute of Technology
8. China
9. Key Laboratory for Photonic and Electronic Bandgap Materials
10. School of Physics and Electronic Engineering
11. Harbin Normal University
12. Harbin 150025