Investigation on Guided-Mode Characteristics of Hollow-Core Photonic Crystal Fibre at Near-Infrared Wavelengths
YUAN Jin-Hui1, YU Chong-Xiu1, SANG Xin-Zhu1, LI Wen-Jing1, ZHOU Gui-Yao2, LI Shu-Guang2, HOU Lan-Tian2
1Key Laboratory of Optical Communication and Lightwave Technologies (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 1008762Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinghuangdao 066004
Investigation on Guided-Mode Characteristics of Hollow-Core Photonic Crystal Fibre at Near-Infrared Wavelengths
YUAN Jin-Hui1, YU Chong-Xiu1, SANG Xin-Zhu1, LI Wen-Jing1, ZHOU Gui-Yao2, LI Shu-Guang2, HOU Lan-Tian2
1Key Laboratory of Optical Communication and Lightwave Technologies (Ministry of Education), Beijing University of Posts and Telecommunications, Beijing 1008762Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinghuangdao 066004
摘要Guided-mode characteristics of hollow-core photonic crystal fibre (HC-PCF) are experimentally and theoretically investigated. The transmission spectrum in the range from 755 to 845nm is observed and the loss is measured to be 0.12dB/m at 800nm by cut-back method. Based on the full-vector beam propagation method and the full-vector plane-wave method, the characteristics of mode field over propagation distance 1m are simulated, and the results show that the propagation efficiency can be above 80%. Compared with the fundamental guided mode well confined in air core within shorter propagation distance, the second-order guided mode leaks into the cladding region and gradually attenuates due to larger refractive index difference. The primary loss factors in HC-PCF and the corresponding solutions are elementarily discussed.
Guided-mode characteristics of hollow-core photonic crystal fibre (HC-PCF) are experimentally and theoretically investigated. The transmission spectrum in the range from 755 to 845nm is observed and the loss is measured to be 0.12dB/m at 800nm by cut-back method. Based on the full-vector beam propagation method and the full-vector plane-wave method, the characteristics of mode field over propagation distance 1m are simulated, and the results show that the propagation efficiency can be above 80%. Compared with the fundamental guided mode well confined in air core within shorter propagation distance, the second-order guided mode leaks into the cladding region and gradually attenuates due to larger refractive index difference. The primary loss factors in HC-PCF and the corresponding solutions are elementarily discussed.
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2009, Vol. 26 
