1. Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
2. Institute of Undersea Technology, National Sun Yat-Sen University, Kaohsiung, Taiwan
3. Department of Electronics Engineering, Batangas State University - the National Engineering University, Batangas City, Philippines
4. Department of Photonics, National Sun Yat-Sen University, Kaohsiung, Taiwan