Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things and Hong Kong Joint Research Centre for Optical Fibre Sensors Key Laboratory of Radio Frequency Heterogeneous Integration University 518060’s Republic of China;
Shenzhen Key Laboratory of Ultrafast Laser Micro/Nano Manufacturing Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province of Physics and Optoelectronic Engineering University 518060’s Republic of China;
Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ) 518107’s Republic of China;
Department of Electronic Engineering University of Hong Kong Kong’s Republic of China;
Department of Applied Physics Hong Kong Polytechnic University’sRepublic of China;
fiber Bragg grating; femtosecond laser micromachining; encrypted information; optical fiber tag;