YANBIAO LIAO received BS from PHYSICS DEPT. OF WUHAN UNIVERSITY in China. He is a professor of Dept. of Electronic Engineering of Tsinghua University in China. His interests are optical fiber sensors in theory and applications from 1980, such as fiber Bragg grating sensors, fiber interferometer, fiber network and fiber sensors used for measuring seismic waves ,vibration ,displacements, temperature ,pressure ,current , voltage and so on. He is the Chairman of Optical Fiber Sensor Society in China.