随着光纤的发明及其损耗的降低、预制棒和拉丝技术的进步、玻璃掺杂丁艺的成熟。出现了以稀土掺杂玻璃光纤作为增益介质的光纤激光器。柔韧质轻的光纤赋予了光纤激光器结构紧凑、体积小和重量轻等优点;利用不同的掺杂光纤,激光波长可在较宽的光谱范围内选取(见表1)。玻璃基质的Stark效应使稀土摻杂光纤具有比晶体宽得多的吸收和发射带宽,从而 With the invention of optical fiber and its loss reduction, the progress of preform and wire drawing technology, the maturity of glass doping technology. The emergence of a rare earth doped glass fiber as a gain medium fiber laser. Flexible, lightweight fibers give the fiber lasers the advantages of compact size, small size and light weight. The laser wavelengths can be selected over a wide range of wavelengths (see Table 1) using different doped fibers. The Stark effect of the glass matrix allows the rare earth doped fiber to have a much broader absorption and emission bandwidth than the crystal,