Low loss fusion splicing of germanium doped core photonic crystal fiber and standard single mode fiber

作者：Li Honglei; Lou Shuqin^*; Guo Tieying; Wang Liwen; Chen Weiguo; Jian Shuisheng

来源：Chinese Journal of Lasers, 2010, 37(6): 1589-1593.

DOI：10.3788/CJL20103706.1589

• 1550 nm
• Arc fusion
• Arc fusion splicing
• Cladding air holes
• Fusion splicing
• Low loss
• Mode field radius
• Mode fields
• Real structure
• Splice loss
• Standard single mode fibers
• Vector finite element

The principles of the splice loss between the germanium doped core photonic crystal fiber (PCF) and single mode fiber (SMF) at the wavelength of 1550 nm are investigated by the full-vector finite element method. The mismatch of mode field between the PCF and SMF is the main factor resulting in the high splice loss. The real structure profile is extracted to exactly simulate the splice loss due to the mismatch of mode field. Based on the arc fusion technique, a set of optimized fusion parameters are obtained from a series of experiments, and the repeat-discharge operation are used to make sure moderate collapse of the cladding air holes of the germanium doped core PCF. Then the mismatch of mode field could be reduced and the low loss splicing between PCF and SMF is realized.

• 出版日期2010
• 单位北京交通大学