All-fiber high-pressure gas cell based on hollow-core photonic crystal fiber

作者：Sun Qing; Liu Erming; Qin Fenghua; Mao Qinghe; Ming Hai

来源：Chinese Journal of Lasers, 2008, 35(7): 1029-1034.

DOI：10.3788/CJL20083507.1029

• Fiber components
• Filling speed
• Final pressure
• High pressure gas
• High pressure nitrogen
• Hollow core photonic crystal fiber
• Pressure equilibriums
• Splicing loss

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 ×106Pa 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 ×106Pa 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 ×106Pa and an insertion loss of 9.3 dB was manufactured.

• 出版日期2008
• 单位中国科学技术大学