The 6th Laser and Optoelectronics Conference (LOC 2020) will be held from December 5-7, 2020 in Sanya, China. This Conference will cover issues on Laser and Optoelectronics. It covers issues on Lasers, amplifiers, micro/nano-photonic devices, Laser Processing of Materials, Terahertz Technologies and Applications, Ultrafast Optics, Optoelectronic Devices and Applications, Short-pulse, solid-state, semiconductor, fiber, waveguide optical sources and devices, Active Optical Sensing and Metrology, etc. LOC 2020 dedicates to creating a stage for exchanging the latest research results and sharing the advanced research methods.