Affiliation: | 1.Key Laboratory of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, 150001, Harbin, China ;2.Postdoctoral Research Station of Mechanical Engineering, College of Mechanical and Electrical Engineering, Harbin Engineering University, 150001, Harbin, China ;3.Department of Physics, Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK ;4.Photonics Research Centre, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland ; |