| 1. | Ytterbium ( yb ) - doped silica fibers have a broad - gain bandwidth ( 850 ~ 1050nm ) , excellent power conversion efficiency , and a broad - absorption bandwidth ( 900 ~ 1200nm ) . their ability to provide amplification over the very broad wavelength range from ~ 975nm to ~ 1200nm is expected to generate increasing interest in the near future . they offer an almost ideal gain medium for the fiber lasers and fiber amplifiers that work at the wavelength around 1 m
掺镱石英光纤具有几个方面的优点,如能级结构简单,与掺er3 + 、 nd3 +等稀土离子的光纤相比,不存在对泵浦光或信号光的激发态吸收( esa ) ,可以有更高的掺杂浓度;有较宽的吸收光谱( 850 ~ 1050nm ) ,可以利用多种泵浦光源来设计泵浦方案;辐射光谱宽( 900 ~ 1200nm ) ,激光输出波长可以有很宽的可调谐范围。 |
