有源光子晶体光纤的芯径较大,主要用于实现高峰值功率(高能量)的脉冲放大输出。目前只有NKT Photonics公司可提供商品化的掺镱(Yb3+)有源光子晶体光纤,其最大芯径约为85μm。光子晶体光纤的制作主要受光纤预制棒中纤芯尺寸的限制。为实现百微米芯径的光子晶体光纤,预制棒中纤芯材料的直径须达到5mm,目前较难实现。中国科学院上海光学精密机械研究所立足于自身在材 Active photonic crystal fiber core diameter larger, mainly used to achieve high peak power (high energy) pulse amplification output. Only NKT Photonics currently offers commercially-available ytterbium-doped (Yb3 +) active photonic crystal fibers with a maximum core diameter of about 85 μm. The production of photonic crystal fibers is mainly limited by the size of the core in the optical fiber preform. To achieve a photonic crystal fiber with a 100 micron core diameter, the diameter of the core material in the preform must be 5 mm, which is currently difficult to achieve. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Based on its own material