Key technologies, apparatus of high power fiber laser and its localization

摘要

For its unique advantages including compact architecture, small volume, light weight, less thermal effect, high conversion efficiency, excellent beam quality, etc., high power fiber laser booms since 1990s and has been used in many fields, especially in material processing, such as marking, cutting, scribing, drilling and texturing, etc. As a new solid-state laser, more and more fiber lasers are employed in laser processing in china nowadays, but most of them are produced by IPG and SPI. In the last decade, many efforts have been done for fiber laser in some domestic universities and institutes, such as Nankai University, Tsinghua University and Shanghai institute of optics & fine mechanics, but no mature product of fiber laser has been brought out until now. To achieve high power all fiber lasers, many key technologies should to be solved.