Laser-diode and Flash Lamp Pumped Solid-State Lasers
Laser-diode and Flash Lamp Pumped Solid-State Lasers
复制标题
激光二极管和闪光灯泵浦固体激光器
DOI：
10.1063/1.3426039
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发表时间：
2010
影响因子：
1.9
通讯作者：
B. L. Garrec
中科院分区：
文献类型：
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作者：
B. L. Garrec
自 80 年代初以来，大多数作者都在考虑，为了以最高的激光效率实现高平均功率运行，有必要用激光二极管泵浦固态激光器取代闪光灯泵浦固态激光器。这一假设基于以下事实：与被视为旧技术的闪光灯泵浦相比，二极管泵浦具有许多优点。尽管获得真实数据非常困难，但我们将证明千瓦级附近的二极管泵浦固体激光器具有中等效率（<<10%），低于预期。闪光灯泵浦聚变激光器仍在运行，效率较低，但可以获得高光束质量和高谐波产生效率。对于 ELI 项目，我们认为，当放大器能够以 1 次/分钟的速度运行以提供 200J 的绿光时，考虑使用闪光灯泵浦激光器是有意义的。我们将证明这是一个需要借助自适应光学和大型非线性晶体来解决的工程问题。
Since the early 80’s, most authors are considering that to enable high‐average‐power operation at the highest laser efficiency, it is necessary to replace flash lamp pumped solid‐state lasers with laser‐diode pumped solid‐state lasers. This assumption is based on the fact that diode pumping has many advantages compared to flash lamp pumping that is seen as an old technology. Although it is very difficult to get true numbers, we shall show that Diode Pumped Solid State Lasers nearby the kW level have a moderate efficiency (<<10%), lower than expected. Flash lamp pumped fusion lasers are still in the run with a low efficiency but can access high beam quality and high harmonic generation efficiency. For the ELI project, we believe that considering a flash lamp pumped laser makes sense when the amplifier can run at 1 shot/mn to delivering 200J of green light. We shall show that it is an engineering problem to be solved with the help of: adaptive optic and large non linear crystals.