中文摘要：

通过气体填充和泄漏实验，结合微管管流理论，研究了空芯光子晶体光纤（HC—PCF）高压气体填充和泄漏特性。结果表明，空芯光子晶体光纤的气体填充过程缓慢，减小出口密封腔体积可有效缩短充气时间。当将空芯光子晶体光纤一端与单模光纤（SMF）熔接后再进行氮气填充，对于3．03×10^6Pa填充气压，在4h内，9m长的空芯光子晶体光纤内部气压将达到平衡。实验测量了该9m长，3．03×10^6Pa的充氮空芯光子晶体光纤单端泄漏速度随时间的演变特性，给出了一种制作全光纤型空芯光子晶体光纤高压气体腔的方案，并指出测量的单端气体泄漏速度随时间变化关系可用来评估最终腔压。在此基础上，制作了空芯光子晶体光纤高压气体腔，腔压为1．73×10^6Pa，光损耗为9．3dB。

英文摘要：

The high-pressure nitrogen-filling and the leaking characteristics for hollow-core photonic crystal fiber （HC-PCF） were investigated experimentally and analyzed with the micro-pipe flow theory. The results show that, the nitrogen-filling speed for the HC-PCF is slow, and the time required for building the pressure equilibrium in the HC-PCF may be shortened efficiently by reducing the volume of the outlet cavity, When a HC-PCF with the length of 9 m was nitrogen-filled with 3.03×10^6 Pa after one of its ends has been spliced to the single-mode fiber （SMF）, the time required for building such a pressure equilibrium was smaller than 4 hours. The leaking speed from one end of a 3.03×10^6Pa nitrogen-filled HC-PCF and its evolution with the time were measured experimentally, and the results may be used for evaluating the final pressure of the gas cell, Finally, a HC-PCF nitrogen-filled cell with a pressure of 1.73×10^6 Pa and an insertion loss of 9, 3 dB was manufactured.