Laser sources at 1064 nm have many potential applications in biomedical engineering, materials processing and display technology [1]. It also has other applications in optical coherence tomography, micromachining and frequency doubling. Recently, Raman light source which is near the 1064 nm is a good candidate for medical detection [2]. In a fiber grating based sensing system, the laser cavity is part of the FBG sensor structure. The changes in the FBG physical condition means paameters change. Several fiber laser sensors have been demonstrated [3-4]. Beside fiber laser, the semiconductor optical amplifier (SOA) is an ideal alternative thank to its inhomogeneous broadening property, which is helpful to stable multi-wavelength lasing [5] for distributed sensing purpose. In this talk, we will demonstrate a semiconductor optical amplifier (SOA) based fiber laser at 1064 nm band. The experiments to sense several parameters with linearity for interpolation prediction will also be introduced. It is a kind of optical sensing source with large dynamic range.

Shien-Kuei Liaw received double doctorate degrees in photonics engineering from National Chiao-Tung University and mechanical engineering from National Taiwan University. He joined the Chunghua Telecommunication, Taiwan, 1993. Dr. Liaw has worked at the department of Electronic Engineering, National Taiwan University of Science and Technology (NTUST) since 2000. He was an academic visitor at the University of Oxford and University of Cambridge in 2011 and 2018, respectively. He owns 40 patents in the U.S., Taiwan and China, authored or co-authored more than 250 journal articles and international conference papers. He has been actively contributing to numerous conferences as a program chair, as an international advisory committee member, a steering committee member, a keynote speaker and an invited speaker. Currently, Dr. Liaw is a Distinguished Professor and Vice Dean of the College of Electrical and Computer Engineering, NTUST and Secretary-General of the Taiwan Photonic Society. His research interests are in fiber sensing, optical communication and reliability testing.