Direct semiconductor laser with high efficiency, compact arrangement, wide wavelength range, low cost and high reliability. These advantages to other lasers are very attractive. However, there is a direct semiconductor laser output beam quality problem, so its application is limited, mainly used for laser pump sources, including large volume solid-state lasers (rod or disc laser) and fiber lasers. In other words, they are mainly as a brightness converter. Therefore, the current application in terms of the cutting and welding of high-brightness industrial lasers mainly carbon dioxide, fiber and bulk solid-state lasers TeraDiode company first developed a direct semiconductor laser, which uses a revolutionary beam-shaping technology, the output power and beam quality to achieve the requirements of industrial lasers. This technology allows the laser to reach tens of kilowatts of output power while maintaining a high beam quality. Use this laser cutting standard thickness of the metal, which can cut quality and the use of the industry is now comparable lasers. 2014 Nobel Prize in Physics was awarded efficient blue LED inventor, reminds us of the progress made by the solid state light sources visible how great I remember December 1991 at the Materials Research Society meeting, when Isamu Akasaki to me When the display bright blue LED, I was surprised how. Now, you can spend a few dollars to buy a purple, blue, green, red laser pointer. However, there are still gaps visible laser spectroscopy difficult to fill, wide wavelength tunability precise, specific application needs, and has been elusive yellow or orange light beam. Fortunately, the emergence of new and improved light source to fill these gaps in demand, reflecting the early experimental systems as well as new research project improvements. Continue efforts to develop basic output in new laser visible, II-VI laser diodes emit visible light in the middle, but defects severely limit the spread of their life. Hitachi Central Research Institute staff report beryllium zinc cadmium selenide (BeZnCdSe) diode will ensure a longer life. Praseodymium and dysprosium emit visible light in a variety of solid material, many by a blue InGaN diode-pumped laser. Y. Fujimoto Osaka University in Japan reported waterproof Fluoroaluminate ion doped optical fiber is expected higher output than conventional dysprosium fiber. Dysprosium-doped YAG at 583nm wavelength peak output power 150mW, limited brightness pump diodes. Pr-doped yttrium barium fluoride continuous output at 607nm up to 78mW. The SrAl12O19 Pr doped waveguide laser output at 644nm red band up to 1W, in the green 525nm output up to 36mW. Others are studying basic visible light source comprises a solid organic dye thin film optical pumping and colloidal quantum dots. QQ: 447380394 Tel: 027-85717787 Tamrac Tamrac laser laser www.whhxty.com Alibaba station whtyjg.1688.com Jupiter photoelectric www.muxing360.com