可见区谐振二次谐波产生的功率缩放策略

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-03-28 DOI:10.1016/j.optcom.2025.131776

Manuel A. Medina, Sahar Alidousti, Callum McEwan, W. Andrew Clarkson

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引用次数: 0

摘要

在本文中，我们描述了一个多轴模式近红外（近红外）源的外部谐振二次谐波产生（SHG）在可见（绿色）光谱波段的缩放功率。通过在多个频率上分配功率，我们在达到受激布里渊散射（SBS）开始之前显著增加了从掺镱光纤放大器获得的输出功率。使用具有~ 9个纵向模式的近红外激光器和具有领结腔结构的LBO晶体，在532 nm波长下实现了高达15 W的转换，相对于入射功率的转换效率为65%。我们讨论了进一步放大输出功率的策略，包括增加轴向模式的数量和优化放大器配置。此外，我们强调了与先前报道的高功率SHG系统相比，我们的方法的优势，展示了其未来功率扩展的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Power scaling strategy for resonant second-harmonic generation in the visible regime

In this paper, we describe external resonant second harmonic generation (SHG) of a multi-axial mode near-infrared (near-IR) source for scaling power in the visible (green) spectral band. By distributing the power across multiple frequencies, we significantly increased the output power obtainable from an ytterbium-doped fibre amplifier before reaching the onset of Stimulated Brillouin Scattering (SBS). Using a near-IR laser with

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9 longitudinal modes and an LBO crystal in a bow-tie cavity configuration, up to 15 W at a wavelength of 532 nm was achieved, with a conversion efficiency of 65% with respect to incident power. We discuss strategies for further up-scaling of output power, including increasing the number of axial modes and optimizing the amplifier configuration. Additionally, we highlight the advantages of our approach compared to previously reported high-power SHG systems, demonstrating its potential for future power scaling.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.