Recently, the research and development of Shanghai ultra-strong ultra-short laser pointer experimental device has made a major breakthrough. Successfully achieved a 10-watt laser amplified output. Reach the leading level of similar international research. According to reports, ultra-strong and ultra-short lasers can create unprecedented extreme physical conditions in the laboratory with ultra-strong electromagnetic fields, ultra-high energy density, and ultra-fast time scales. In desktop accelerators, ultra-fast chemistry, attosecond science, materials Science, laser fusion, nuclear physics and nuclear medicine, laboratory astrophysics and other fields have great application value.
At present, many countries in the world have invested heavily in the development of 10 watts (1 watt = 1 trillion watts) of large-scale ultra-strong ultra-short laser devices, and the competition is fierce. For example, the EU-supported Extreme Light Facilities (ELI) project is constructing multiple 10-watt laser user units simultaneously. France and the United Kingdom are also developing their own 10-watt laser devices. The United States, Russia, and Japan have proposed research ideas for a hundred-watt-watt ultra-strong and ultra-short laser device.
Researchers have solved large-caliber high-gain green laser pointer amplifiers. Key scientific and technological issues such as high-performance laser pump sources, precision control of broadband high-order dispersion, and suppression of gain narrowing. For the first time in the world, it has achieved broadband laser output with an energy level above 300 Joules (full width at half maximum to 70 nm). It is worth mentioning that the titanium sapphire crystal used in the 10-watt laser main amplifier has a diameter of 235 mm and was independently developed by the Shanghai Optical Machinery Institute. This is the first time that China has successfully developed a laser crystal with a diameter of more than 200 mm. It is also currently the world's largest caliber laser-amplified crystal. It is understood. This is another major progress made by the Shanghai ultra-strong and ultra-short laser experimental device in August 2016 after achieving the international leading achievement of 5 watts. The device is scheduled to be fully completed and open to users by the end of 2018.