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中国科学院上海光学精密机械研究所在国际上首次提出了稀土离子掺杂的软玻璃全固态光纤概念。该方案利用低折射率的玻璃取代了空气孔,避免了空气孔的存在带来的缺陷,使得全光纤激光器成为可能,同时软玻璃的使用也显著地提高了光纤的泵浦吸收率和非线性阈值。上海光机所利用自行制备的6wt%镱掺杂的高质量磷酸盐玻璃,利用管棒法和堆积法相结合的方法,首次成功制备了纤芯直径为17微米的单模输出、保偏的磷酸盐全固态光子晶体光纤,在-40cm的光纤中实现了
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, for the first time in the world put forward the concept of all-solid-state optical fiber doped with rare earth ions. This solution replaces the air holes with low refractive index glass, avoids the defects caused by the presence of air holes and makes the all-fiber laser possible, and the use of soft glass also significantly improves the pump absorption rate and nonlinearity Threshold. Using a 6wt% ytterbium-doped high-quality phosphate glass, Shanghai Komatsu Co., Ltd. successfully fabricated a single-mode output with a core diameter of 17 micrometers by a combination of tube-sticking and stacking methods. The polarization-maintaining phosphoric acid Salt all-solid photonic crystal fiber, in the -40cm fiber to achieve