According to industry analysis, the global fiber laser market will maintain steady growth and has become one of the world's major industrial lasers. Application technology has been broadened to laser marking, cutting, welding, cladding, metal 3D printing, medicine, printing and other fields. The compound annual growth rate (CAGR) will reach about 12% by 2021. It will also lead to the continued growth of demand for upstream components, erbium-doped fiber and other raw materials for fiber laser companies at home and abroad, but for a long time in the past, domestic Fiber laser companies still rely on imports for the key raw material of erbium-doped fiber.
Fiber lasers can generate and emit lasers. Many industrial fields are inseparable from fiber lasers and the lasers they produce: in the civilian sector, fiber lasers can be used for box marking, such as laser marking production dates on mineral water bottles. It can not be modified and is not easy to scratch; in the industrial field, fiber laser can be used for steel plate cutting, which can improve the precision of industrial production; in the military field, fiber laser can be used for space confrontation and combat.
Dr. Chen Wei, chief engineer of Hengtong Optical Fiber, introduced the difference between the traditional fiber and the dual-clad erbium-doped fiber DC-YDF. The application field is highly targeted and is mainly used in laser marking, material processing, medical laser and other fields. At the same time, in terms of performance, the erbium-doped fiber not only transmits light, but also generates and amplifies light, and is an active fiber and an active fiber; the conventional fiber is simply transmitted, and is a passive fiber and a passive fiber.
Chen Wei said that the double-clad erbium-doped laser fiber is currently the core component of fiber lasers and amplifiers. Its manufacturing technology is difficult, the production process is complex, and the added value of products is high. It is regarded as the spire of the pyramid and is a multi-fiber enterprise. Heavy forces, in order to win the technical commanding heights. The product adopts the world's advanced rare earth chelate gas phase doping technology, combined with MCVD rod technology, which realizes that the deposition tube can complete all deposition processes in one step without disassembly, and has the advantages of short rod making time and less process pollution. Conducive to the uniform dispersion of doping ions.
In addition, the product's rare earth chelate gas phase doping technology truly realizes in-situ deposition, simple operation, good repeatability, and can deposit large-sized erbium-doped mandrel rods, thereby preparing large-sized preforms by matching quartz cladding. Good guarantee of fiber production and batch consistency, thus manufacturing kilowatt-class laser fiber, to solve the major demand for kilowatt-class active fiber in the field of energy optoelectronics in China. Dr. Chen Wei said that the double-clad erbium-doped laser fiber has global leadership in both technology and performance.
Dr. Chen Wei said that Hengtong pays great attention to the research and development of new special optical fibers and establishes a new fiber optic engineering technology research center with special optical fiber preform manufacturing, wire drawing, testing and technical service capabilities. At present, Hengtong has formed a series of products such as erbium-doped fiber, data center fiber, sensing fiber, and marine fiber . The dual-clad erbium-doped laser fiber and the supporting passive transmission fiber GDF show that the company has already possessed the YDF double-clad fiber mass production capacity and customized product development capability. In the future, Hengtong will continue to keep up with the pace of the times, seize the opportunities, and strive to build a special fiber optic high-tech industry and accelerate the international market process of domestic fiber laser technology.
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