The key national research and development program "Research on key technologies of high-power fiber laser materials and devices" to be undertaken by South China University of Technology in 2016 will soon usher in the mid-term inspection in Suzhou in January 2018. At the 2017 project progress reporting meeting, All tasks have progressed smoothly, some breakthroughs have been made in some key technical fields, and some of the technical indicators and achievements have reached the international advanced level.
December 8, 2017, South China University of Technology led the 2016 key state research and development program "strategic advanced electronic materials' key special 'high-power fiber laser materials and devices key technologies' project 2017 progress report meeting in Wuhan, Huazhong Science and Technology University successfully held. Leaders and experts participating in the progress report of the project included Director Shi Dongmei, Director Yang Bin of Wuhan University of Science and Technology, Professor Shi Shining from Nanjing University, Professor Pan Feng from Tsinghua University, etc., Delegates from all participating units. Professor Luo Qingming, vice chancellor of Huazhong University of Science and Technology, delivered a speech.
Participants leaders, experts and representatives of various units photo
'High-power fiber laser materials and devices key technology research' project led by South China University of Technology, the joint Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences, Institute of Semiconductors, Chinese Academy of Sciences, Huazhong University of Science and Technology, Nanjing Advanced Laser Technology Institute, Chinese Academy of Sciences, Suzhou Medical Engineering Technology Research Institute, National University of Defense Technology, Tianjin University and other domestic fiber laser materials and laser technology in the field of strong universities and research institutes, and Suzhou Chang Guanghua Optoelectronics Technology Co., Ltd., Wuhan Rui Branch Fiber Laser Technology Co., Ltd. , Shanghai Feibo Laser Technology Co., Ltd., Guangzhou Hong Sheng Optoelectronics Technology Co., Ltd. and other outstanding enterprises in the laser industry share.
The urgent need of high-power fiber laser materials and devices urgently needs to be overcome urgently in light of the urgent need of domestication of high-power fiber laser with high beam quality. The project focuses on the key core fiber materials and components for high-power fiber laser, high-quality laser pump source and High-performance single-frequency laser seed source to carry out research, to be developed: 1, for the 10,000-watt fiber laser high-gain large mode field fiber, beam combiner, grating and cladding light stripper; 2, life expectancy> 20,000 Hour high-brightness semiconductor laser chip and power> 2000W pump source; 3, brightness> 100MW / cm2 / Sr photonic crystal laser; 4, <10kHz百瓦级单频激光器并通过合束实现>3000W output.
At the project progress reporting meeting, Professor Yang Zhongmin, project leader, gave a detailed report on the general situation of the project, the consulting of experts, the overall R & D technical solution, the progress of 2017. In addition, the project leaders reported the completion of tasks and indicators respectively And budget implementation, summed up the major breakthroughs and important achievements that have been made, find out the existing problems and put forward rectification measures, exchanging management experience and ensuring the smooth implementation of the project .Finally, the leaders of the Ministry of Science and Technology Fully affirmed and highly praised the performance of work and full of expectation and prospect for the mid-term inspection.Expert participants made a consultation and argumentation on the 15 opinions put forward by the expert group at the start-up meeting of the project and were conducted by the project leaders answer.
Significant progress has been made in the research work of the project, achieving significant breakthroughs in the fields of 10,000 watts of high-gain glass fiber materials and components, high-performance laser pump sources, and high-performance single-frequency laser seed sources, respectively, reaching the leading level in international researches. (1) high gain glass fiber single fiber output power 10155W; (6 + 1) × 1 beam combiner single arm withstand power 1850W; fiber grating withstand power 1800W; cladding light stripper filter power 1000W, attenuation coefficient 50dB; 2) 976nm fiber-coupled semiconductor laser pump (50μm wide chip) output power of 10.8W, chip life exceeded 12000h; (3) 976nm band tapered photonic crystal laser output power of 7.3W, brightness 29.7MW / cm2 / Sr, vertical divergence Angle of about 11 °. (4) The power of 1064nm and 1950nm single-frequency fiber laser respectively output 166W, 57W; based on the 4-way narrow linewidth fiber laser coherent polarization synthesis power of 5.02kW, the synthesis efficiency of 93.8%.
The new technology represented by 'optical manufacturing' has revolutionized the traditional industrial manufacturing, and the 10,000 watt high-power fiber laser is the core light source for high-end laser manufacturing. As the project is about to enter the mid-term inspection phase, We will continue to intensify our R & D efforts and will celebrate the mid-term assessment with full enthusiasm and excellent results. The project will focus on the achievement of high-beam-quality 10,000-watt fiber laser domestically from the perspectives of national economic construction, scientific research needs and national defense and safety. The urgent requirement and ultimate goal of globalization.