论文标题
实现和模拟高功率Holmium掺杂纤维激光器的远程传播
Realization and simulation of high power holmium doped fiber laser for long-range transmission
论文作者
论文摘要
我们报告了我们对高功率Holmium掺杂纤维激光器的实现，以及对激光的数值模拟的验证。我们首先提出了对物理参数的罕见绝对测量值，这些测量是必须在我们的二氧化硅纤维中准确对激光 - 海尔米相互作用进行准确模拟的强制性测量。然后，我们根据三层大模式区域（HO）掺杂的二氧化硅纤维来描述甲壳激光的实现。输出信号功率为2120 nm的90 W，相对于耦合泵功率，效率约为50％。该效率对应于100 W功率类别中覆盖的HO掺杂纤维激光器的最新技术。通过将实验结果与我们的模拟进行比较，我们证明了它的有效性，并使用它来证明效率受到我们的纤维的限制，这是由对相邻良好离子之间的对诱导的淬火引起的不饱和吸收。
We report on our realization of a high power holmium doped fiber laser, together with the validation of our numerical simulation of the laser. We first present the rare absolute measurements of the physical parameters that are mandatory to model accurately the laser-holmium interactions in our silica fiber. We then describe the realization of the clad-pumped laser, based on a triple-clad large mode area holmium (Ho) doped silica fiber. The output signal power is 90 W at 2120 nm, with an efficiency of about 50% with respect to the coupled pump power. This efficiency corresponds to the state of the art for clad-pumped Ho-doped fiber lasers in the 100 W power class. By comparing the experimental results to our simulation, we demonstrate its validity, and use it to show that the efficiency is limited, for our fiber, by the non-saturable absorption caused by pair induced quenching between adjacent holmium ions.
