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首页> 外文期刊>Optics Letters >High-quality ultraviolet beam generation in multimode photonic crystal fiber through nondegenerate four-wave mixing at 532 nm
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High-quality ultraviolet beam generation in multimode photonic crystal fiber through nondegenerate four-wave mixing at 532 nm

机译：通过在532 nm处进行非简并四波混合，在多模光子晶体光纤中产生高质量的紫外线

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摘要

All-fiber ultraviolet (UV) light sources are of great practical interest for a multitude of applications spanned across different sectors, from industrial processes such as nonthermal, high-resolution materials processing, to biomedical applications such as eye surgery, to name a few. However, production of UV light sources with high beam quality has been a problem to this day as the fiber designs required to reach UV wavelengths by four-wave mixing with widely available pumps (i.e., 532 nm) are challenging because of their small size and increased risk of material damage. In this Letter, a specific pumping scheme is presented that allows the conversion of two pump photons in different modes to UV light in the fundamental mode and the corresponding idler in a higher order mode. The process has also been shown to work experimentally, and UV light at 390.5 nm in the fundamental mode was successfully generated. (C) 2015 Optical Society of America
机译：全光纤紫外线（UV）光源对于跨不同领域的众多应用具有极大的实际意义，从工业过程（例如非热，高分辨率材料加工）到生物医学应用（例如眼科手术）等等。然而，由于光束尺寸小，直径大，并且通过广泛使用的泵浦（例如532 nm）进行四波混频以达到紫外线波长所需的光纤设计面临挑战，因此，具有高光束质量的紫外线光源的生产至今仍是一个问题。物质损坏的风险增加。在这封信中，提出了一种特定的泵浦方案，该方案允许将不同模式下的两个泵浦光子转换为基本模式下的UV光，并转换为更高阶模式下的相应惰轮。该过程也已通过实验证明可以正常工作，并且成功生成了基本模式下390.5 nm的紫外光。 （C）2015年美国眼镜学会

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