Opt Lett. 2019 Apr 1;44(7):1588-1591. doi: 10.1364/OL.44.001588.
We report ultrashort pulse delivery through a hypocycloid-core inhibited-coupling Kagome hollow-core photonic crystal fiber (HC-PCF). Undistorted 10 fs and 6.6 nJ pulses were launched through 1 m long fiber without fiber dispersion pre-compensation and 80% efficiency. The performance of this technology for biomedical imaging is demonstrated on a biological sample by incorporating the fiber into a two-photon excited fluorescence (TPEF) laser scanning microscope (LSM) achieving a pulse width of 15 fs at the sample location. To the best of our knowledge, this is the first report on undistorted TPEF imaging in a LSM with 15 fs pulses delivered through a 1 m long Kagome HC-PCF with high throughput.
我们报告了通过回旋形芯抑制耦合正六边形空芯光子晶体光纤（HC-PCF）传输超短脉冲。通过 1 米长的光纤传输未失真的 10 fs 和 6.6 nJ 脉冲，无需光纤色散预补偿，效率为 80%。我们通过将光纤集成到双光子激发荧光（TPEF）激光扫描显微镜（LSM）中，在生物样本上展示了这项技术在生物医学成像中的性能，在样品位置实现了 15 fs 的脉冲宽度。据我们所知，这是首次在 LSM 中使用 15 fs 脉冲进行未失真的 TPEF 成像的报告，这些脉冲是通过 1 米长的具有高通量的回旋形 HC-PCF 传输的。
