论文标题
锥形YB掺杂YB的笑容多模纤维中的空间束自我清洁，非线性
Spatial beam self-cleaning in tapered Yb-doped GRIN multimode fiber with decelerating nonlinearity
论文作者
论文摘要
我们在实验中证明了在被动和主动构型中，在YB掺杂的分级多模纤维锥中的空间束自我清洁。注入1064 nm处的输入激光束从锥度的小核侧传播，并在反向构型中泵送激光二极管。 KERR效应允许获得高光束质量放大，而无需随附的频率转换。结果，我们的非线性锥度放大器可以为多模纤维激光器和放大器提供重要的构建块。
We experimentally demonstrate spatial beam self-cleaning in an Yb-doped graded-index multimode fiber taper, both in passive and active configurations. The input laser beam at 1064 nm was injected for propagation from the small to the large core side of the taper, with laser diode pumping in a counterdirectional configuration. The Kerr effect permits to obtain high-beam quality amplification with no accompanying frequency conversions. As a result, our nonlinear taper amplifier may provide an important building block for multimode fiber lasers and amplifiers.
