1. Information and Electrical Engineering College, Liming Vocational University, Quanzhou Fujian China
2. College of Photonic and Electronic Engineering, Fujian Normal, University, Fuzhou Fujian China
3. Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou Fujian China