Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences (SB RAS), Koptyug ave. 1, Novosibirsk 630090, Russia.
Opt Lett. 2012 Jul 1;37(13):2508-10. doi: 10.1364/OL.37.002508.
An analytical model for self phase modulation in Yb-doped fiber laser (YDFL) describing output spectrum and its broadening with increasing power has been developed. Spectral measurements in continuous wave (CW) cladding-pumped YDFL have proved the validity of the model demonstrating hyperbolic secant shape of the spectrum and linear increase of the line width with power in 1-12 W range. At lower powers, spatial hole burning and line self-sweeping effects become important and define the lower limit for the line width.
已经开发了一种用于描述掺镱光纤激光器（YDFL）中自相位调制的分析模型，该模型描述了输出光谱及其随功率增加而展宽的情况。连续波（CW）包层泵浦 YDFL 的光谱测量证明了该模型的有效性，表明光谱呈双曲正割形状，线宽在 1-12 W 范围内随功率线性增加。在较低功率下，空间烧孔和线自扫描效应变得重要，并定义了线宽的下限。
