基于赫里奥特型多通道单元中的体激光增益介质的准波导放大器。

IF 3.2 2区物理与天体物理 Q2 OPTICS

Optics express Pub Date : 2024-07-15 DOI:10.1364/OE.528278

Johann Gabriel Meyer, Andrea Zablah, Oleg Pronin

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引用次数: 0

摘要

我们在此介绍一种基于体增益介质的激光放大器的新几何结构。重叠的种子光束和泵浦光束通过一个赫里奥特型多通单元重复重新聚焦到增益介质中。这种结构与波导类似，可以在增益介质内部实现比普通单通体激光放大器更长的封闭传播。在增益介质内部，焦点出现在不同的位置。使用钛：蓝宝石进行的原理验证表明，由于热负荷的分布，这可能会导致更高的放大率。

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Quasi-waveguide amplifiers based on bulk laser gain media in Herriott-type multipass cells.

We present here what we believe to be a new geometry for laser amplifiers based on bulk gain media. The overlapped seed and pump beams are repetitively refocused into the gain medium with a Herriott-type multipass cell. Similar to a waveguide, this configuration allows for a confined propagation inside the gain medium over much longer lengths than in ordinary single pass bulk amplifiers. Inside the gain medium, the foci appear at separate locations. A proof-of-principle demonstration with Ti:sapphire indicates that this could lead to higher amplification due to a distribution of the thermal load.

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来源期刊

Optics express 物理-光学

CiteScore

6.60

自引率

15.80%

发文量

5182

审稿时长

2.1 months

期刊介绍： Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.