1. College of Physics and Optoelectronic Engineering, Shenzhen University,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,Shenzhen,China,518060
2. Harbin Engineering University,Key Lab of In-fiber Integrated Optics, Ministry Education of China,Harbin,China,150001
3. China Jiliang University,Institute of Optoelectronic Technology,Hangzhou,China,310018