The target is to develop realistic 1—4kW fiber lasers, keep on developing high-power pump couplers, manufacture a high-power laser beam combiner by increasing fiber core diameter, produce 6kW fiber lasers, and develop a 10kW fiber laser. They also want to develop W pulsed fiber lasers, 1. These lasers have important applications in national defense, such as laser remote sensing and laser infrared techniques. The ultrafast fiber laser and high-power femtosecond pulsed fiber lasers that are developed by Wuhan Yangtze Soton Laser Co. Soton provide ideal light sources for optical time-division multiplexing OTDM and for laser micromachining development.
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High-power and high-beam-quality diode lasers. The target of Lingyun Photoelectronic System Co. Lingyun , HUST, and Raycus is to develop beam shaping, beam collimating, and fiber coupling of multi-array diode lasers, and study high-stability and high-power diode lasers to use as the pump source of fiber lasers or other applications.
They plan to develop 1kW plastic welding diode lasers, a 4kW diode laser for surface modifying, and 2—3kW high-beam-quality diode lasers for cutting and welding. High-power CO 2 lasers. Frequency-shifted and ultrafast laser developments. Now, they are studying passive mode-locking, solid laser cavity, isolation design, and pulse select.
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The laser has single polarization output and can apply to light-emitting diode LED sapphire scribing. High-power laser processing equipment. Large laser processing equipment based on high-power 2—10kW industrial lasers is developed for applications in the steel, oil, metallurgy, car, shipbuilding, and aerospace industries, among others. Technologies include high-power laser cutting, cladding, heat treating, and welding. Wuhan now has more than 10 laser cutting factories producing middle- to high-power, small- to large-format, and rigid- to flexible-system equipment.
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Lasers mainly for automotive and welding robots. Remote scanning and welding technology makes full use of single-side and contactless laser welding technology, and also combines these advantages with high-speed scanning lenses so that welding time is greatly shortened. The development of vehicle door and car floor laser remote scanning and welding systems uses high-power fiber or disk lasers linked to a control system for a 6-axis robot and 3-axis oscillating mirror for production lines with vehicle floorboard remote scanning and welding, as well as vehicle door remote scanning.
Also employed are remote scanning, welding, and quality inspection technologies to meet the need for efficient position of 3D vehicle body welding, and to develop large-format, high-speed laser cutting systems for thick steel. They are also solving technical problems in high-power, large-format, multi-drill-on-the-fly DoF , and flying-optics CO 2 laser cutting systems, including optical transmission beam collimation, aplanatic, focus, light stability ; manufacturing technology of long-cantilever, knuckle-arm, linear-motor-drive high-speed cutting machines; control systems; advanced software technologies; and system integration technology.
This leads to domestic high-end laser cutting devices to make breakthroughs in ship, steel, construction machine, and military project applications, and to replace imported systems. Fiber laser cutting machines are now being vigorously developed and mainly applied in sheet metal cutting, with applications in aerospace equipment, shipbuilding, instrumentation, mechanical and electrical products, and car making.
The focus now is on developing online laser welding devices for metal strip used for car body and high-power laser welding systems for aerospace applications.
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Hybrid welding systems for aerospace application. They are studying filler wire material of high-strength Al alloy, and trying to make progress in laser welding technology for high-strength Al alloy plate with thicknesses of 10—20mm. They are also studying high-power fiber laser welding of nonferrous and mid-thick plate, and techniques in MIG hybrid welding and filler wire hybrid welding. High-power diode laser processing.
HG Laser and Unity Laser are researching integrated intelligent diode laser surface hardening and remanufacturing systems to verify the intelligent control of distance, temperature, and trace and treatment effect. This can be used in heat treating and repairing of big mechanical components for automotive panel dies, mine machines, coal machines, and petrochemical machines and generating units FIGURE 2. Precision micromachining systems for the electronic industry. The development of private laser manufacturing equipment for 3D products and applications of laser wire stripping, welding, cutting, and tin soldering has greatly promoted the replacement of manufacturing techniques, offering higher performance, high intelligence, and high integration.
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They also developed necessary techniques for advanced electronic product manufacturing. They make use of laser precision techniques to improve the efficiency and lifetime of LEDs by drilling a micro-hole under the LED and making a direct channel for hot air to flow to the radiator.
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Scribing, marking, and drilling of solar batteries are also important applications for laser precision machining. The picosecond laser and strontium laser core technologies applied in touch-panel cutting and ITO film fabricating deliver China will keep developing the laser industry with focus on three main directions: new core lasers, high-end laser manufacturing equipment, and laser machining. Development of industrial technology innovative systems will make breakthroughs in key areas. To do this, we will build a "domestic topping and foreign knowing" laser industry base, and form a special industrial cluster that will be a world first in fractionized field.
We will use leading enterprises as a vehicle to improve production of laser cutting equipment; form a high-power industrial chain; push the applications and high-end development of laser welding devices; encourage the crossover of laser 3D printing, laser remanufacturing devices, and traditional manufacturing devices; and achieve the industrialization of precision laser micromachining systems.
High-power and high-beam-quality diode lasers will be the main source of laser welding, remanufacturing, and 3D printing. Middle- and small-power, high-beam-quality diode lasers will be the main light source of laser medicine, and UV, picosecond, and femtosecond lasers will be the main light source in precision micromachining. Diode laser precision micromachining will have a huge business opportunity in future China. Home Welding Industrial laser developments in China's Wuhan Optical Valley After decades of development, China's laser industry has become a high-tech industry with industrial scale.
Current situation in Hubei province Wuhan, in China's Optical Valley, was the first to develop laser technology. The macroscopic structure of the industrial chain. Development status of industrial lasers High-power fiber lasers. HG Laser and Unity Laser are researching integrated intelligent diode laser surface hardening and remanufacturing systems for use in heat treating and repairing of big mechanical components. The picosecond laser and strontium laser core technologies applied in touch-panel cutting and ITO film fabricating deliver Perspectives on development China will keep developing the laser industry with focus on three main directions: new core lasers, high-end laser manufacturing equipment, and laser machining.
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