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Industrial development of domestic fiber laser

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With the development of 4K / 3D / laser projection / high frame rate / LED light source, coaxial audio and other technological hotspots, mainstream projector manufacturers have launched their own laser projector products in the first half of 2014. This time, laser light sources have become a hot topic. The topic is, how far can the laser go, and what are the problems with the laser light source, and how are these problems solved in the process of applying to the construction of the cinema?

Most of China's industrial fiber lasers currently rely on imports because we have not yet achieved the commercialization and industrialization of fiber lasers. The development of fiber lasers in China is not behind, and several units have achieved continuous output power of more than 1000W, but the industrialization of fiber lasers in China has lagged significantly. Although there are many units engaged in the production and development of fiber optic devices, the overall technical level is weak. At present, the rapid development of fiber lasers places urgent demands on energy fiber optic devices, and China is basically blank in this regard.


For the earliest units engaged in the development of fiber lasers in China, in the face of this situation in China, there is basically no basis for the development of all-fiber lasers, so the solution of lens shaping and focusing on the end-pumped external cavity structure has become a realistic choice. This structure is very close to traditional all-solid-state lasers, and has a low dependence on fiber optic technology, and can be fabricated using non-fiber optic technology. However, it has been proved in practice that fiber lasers can only fully reflect the overall consistency, integrity, harmony and matching by adopting an all-fiber structure and fully show the advantages of fiber lasers. Therefore, all-fiber structure solutions are more in line with the essential laws of fiber laser development. Therefore, it is inevitable that all-fiber lasers will become mainstream in the world.

Since 2004, China's annual demand for fiber lasers has exceeded 5,000 units. In 2006 alone, the German IPG company sold 1,400 fiber lasers in China. Experts predict that China's annual demand for fiber lasers will reach 10,000 sets at the beginning of the 12th Five-Year Plan. Against the backdrop of huge civilian and military needs, dozens of units have been conducting research on double-clad fiber lasers, and great progress has been made.


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