In this letter, we proposed a compact multimode fiber (MMF)-based laser scanning endoscope (LSE) using wavefront shaping with a liquid crystal spatial light modulator. Experimentally, we demonstrated the lensless imaging capability of the LSE using a negative USAF-1951 test target placed near the distal MMF facet, obtaining ∼7000-pixel images with micro-level spatial resolution and high contrast across a 105μm field of view. This study proves the feasibility of a single MMF imaging without mechanical scanning, and also paves the way for ultra-thin micro-endoscopic imaging.

中文翻译：

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基于波前整形的无透镜多模光纤成像

在这封信中，我们提出了一种基于紧凑型多模光纤 (MMF) 的激光扫描内窥镜 (LSE)，它使用带有液晶空间光调制器的波前整形。在实验上，我们证明了使用放置在靠近所述远端MMF小面的负USAF-1951测试目标，获得具有微级的空间分辨率和跨越105高对比度~7000像素图像的LSE的无透镜成像能力μ的视图m字段。该研究证明了无需机械扫描的单一MMF成像的可行性，也为超薄显微内窥镜成像铺平了道路。