continue from "Centennial history of laser （2）

       In 1988, Brazil announced the successful development of a portable semiconductor laser atmospheric communication system. This kind of military infrared communication device, which is connected to the line by a laser, is shaped like a binoculars with a laser diode and a microphone installed on it. When in use, one party can point the binoculars at the other party to achieve communication. The communication distance is 1 km. If the optical antenna is fixed, the communication distance can reach 15 km.
　　 In 1990, lasers were used in manufacturing, including integrated circuits and automobile manufacturing.
　　 In the early 1990s, Russia successfully developed high-power semiconductor lasers.
　　 In 1991, laser was used to treat myopia for the first time, and laser guided missile was used for the first time in the Gulf War.
　　 In 1991, IPGPhotonics, the world's largest fiber laser manufacturer, was founded by Dr. Valentin Gapontsev and headquartered in Massachusetts, Eastern United States. IPG has production and R&D bases in Germany, the United States, Russia, and Italy, as well as sales and service outlets around the world, covering the United States, Britain, Europe, India, Japan, South Korea, Singapore and China, and was established in the United States in 2006. Starck goes public.
　　 In 1991, laser was used to treat myopia for the first time, and laser guided missile was used for the first time in the Gulf War.
　　 In 1996, Toshiba launched a digital versatile disc player, which is what we often call DVD disc player.
In 2008, French neurosurgical scientists used broad-guided fiber laser and minimally invasive surgical techniques to treat brain tumors.
In 2010, the National Nuclear Safety Administration (NNSA) stated that it solved a problem of nuclear fusion by using 192 lasers to confine the raw materials for nuclear fusion, the hydrogen isotopes deuterium (mass number 2) and tritium (mass number 3). The key difficulty.
　　 In 2012, Panasonic Precision Device, a subsidiary of the Panasonic Group, developed a "green SHG laser unit" with an output power of 1W and a volume of 2cc. Physicists at the University of Texas at Austin and colleagues from Taiwan and China have jointly developed the world’s smallest semiconductor laser. Researchers at the University of California, San Diego have produced the smallest room-temperature nanolaser to date and a highly efficient thresholdless laser that allows all photons to be emitted in the form of lasers without wasting any photons.
　　 In 2012, Huagong Technology and Wuhan Ruike jointly developed a 4kW fiber laser, becoming the third fiber laser company in the world to have this technology.