We demonstrate a self-starting tunable all-normal-dispersion (ANDi) ytterbium (Yb):fiber laser based on the biased nonlinear amplifying loop mirror (NALM), which generates a stable femtosecond dissipative soliton with an average output power of 154mW at a pump power of 816mW. It has a dechirped pulse duration of 178 fs, a repetition rate of 88.6MHz. Taking advantage of the intracavity-birefringence induced spectral filtering effect, its center wavelength tunes from 1029 to 1039nm with a spectral bandwidth of 12nm. The proposed ANDi femtosecond fiber laser provides a high-energy short-pulse laser source with strong stability.

我们展示了一种基于偏置非线性放大环路镜 (NALM) 的自启动可调谐全法向色散 (ANDi) 镱 (Yb): 光纤激光器，该激光器产生稳定的飞秒耗散孤子，平均输出功率为 154mW。泵功率为 816mW。它的去啁啾脉冲持续时间为 178 fs，重复率为 88.6MHz。利用腔内双折射引起的光谱滤波效应，其中心波长从1029nm调谐到1039nm，光谱带宽为12nm。所提出的ANDi飞秒光纤激光器提供了一种稳定性强的高能量短脉冲激光源。