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中文摘要：
分别分析了不同空气填充率光子晶体光纤与普通单模光纤熔接过程中损耗的来源和制约机制，实验研究了熔接参数对熔接效果的影响，包括熔接损耗随放电电流、放电时间和放电功率变化的情况。通过优化调整熔接参数，对高空气填充率和低空气填充率的两种光子晶体光纤都实现了低损耗熔接，熔接损耗为0．22dB。并利用掺镱大模场面积光子晶体光纤飞秒激光放大器作为抽运源，在抽运功率为14．7W时，实验得到了7．45W的高功率超连续光谱输出，光谱覆盖范围650-1750nm。
英文摘要：
The source and control mechanism of fusion splicing loss were analyzed for the splicing between the photonic crystal fibers with different air-hole fraction and single-mode fiber. The splice loss evolution with the splicing parameters, including the fusion current, fusion time, power of discharge, were experimentally studied. With a carefully adjustment, splicing loss as low as 0.22 dB was realized both for high and low air-hole fraction photonic crystal fibers. The fibers were used in experiments of generating supercontinuum and ytterbium doped large mode area photonic crystal fiber laser amplifier was used as pump source. Supercontinuum with power as high as 7.45 W and wavelength range from 650 nm to 1750 nm was obtained.
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