The original Chinese names of laser are "laser" and "laser", which are the transliterations of its English name LASER, which are taken from the first letter of each word in English Light Amplification by Stimulated Emission of Radiation. abbreviation. Meaning the expansion of light by stimulated emission of light. The full English name of laser has fully expressed the main process of manufacturing laser. In 1964, according to the suggestion of the famous Chinese scientist Qian Xuesen, "optical stimulated emission" was renamed "laser".