subject: China's High-power Fiber Laser Coupled Two-dimensional Coherent Laser Array To Achieve 26w [print this page] From the perspective of the development of laser technology, fiber laser represents the development direction of high power laser and trends. The many advantages of fiber lasers, decided it was high power and high beam quality and reliability of solid-state laser systems one of the options, the United States, Britain, Germany, France, Japan and many other developed countries have attached great importance to high-power fiber laser research. In the beginning of this century, China began to study a number of fiber laser unit, after years of effort has been a great success. In 2006, the CAS Shanghai Institute of Optics and Fine Mechanics, China Electronics Technology Group 11 and China South Research Institute of single-fiber laser CW output exceeding kW fiber laser to make our country a place in this frontier area. At present, although the domestic high-power fiber laser research has made some progress, but results of most of the domestic stage is still in the experimental study, to obtain a higher power, high beam quality laser output needs further exploration and research.
Shanghai Institute of Optics and Fine Mechanics of advanced laser technology and applications laboratories constitute a four-beam fiber laser cavity two-dimensional array by sharing technology, successfully achieved a four-beam two-dimensional array of phase locked fiber laser, the observed stability, a clear coherent array beam pattern, obtained coherently coupled laser output 26W. This is the second single fiber laser and successfully achieved breakthrough kilowatt fiber laser coherent synthesis of the two beams since the high-power fiber laser is another important breakthrough in the field.
Multi-beam laser's coherent beam combination can increase the total laser power while maintaining good beam quality of laser, the laser intensity was greatly enhanced research in the field of laser technology hot spots. Compared with the conventional solid-state lasers, fiber lasers in beam quality, efficiency, volume and other advantages obvious and easy to constitute a laser array, so high-power fiber laser's coherent beam combination to achieve high power, high brightness laser output with the most effective technology one of the ways in industrial and military fields has important applications.
