Shanghai Institution of Optics & Fine Mechanics (中国科学院上海光学精密机械研究所 沪, SIOM) is an institute specializing in laser science and technology. It focuses on modern optical and laser science, the development of large-scale laser engineering and technology, and laser and optoelectronic applications. SIOM also specializes in high-power laser technology, strong-field physics, high-intensity optics, information optics, quantum optics, laser and optoelectronic devices, and optical materials, etc.