.Transmission spectrum method to measure the photonic bandgap of hollow-core photonic crystal fiber[J].Optoelectronics Letters,2007,3(1):22-24 Transmission spectrum method to measure the photonic bandgap of hollow-core photonic crystal fiber WEI Hong-yan HOU Lan-tian ZHAO Xing-tao LIU Zhao-lun WANG Wei MA Jing-rui Institute of Infrared Optical Fibers and Sensors, Yanshan University, Qinhuangdao 066004, China Abstract:       A full-vector plane-wave method is introduced,particularly in calculating the photonic crystal in-plane photonic bandgap of a 2D triangular structure. Using numerical simulation,we can obtain the in-plane bandgap structure of a hollow-core photonic crystal fiber. In the experiments,we measured the transmission spectra of a hollow-core photonic crystal fiber and a silica rod. And using the numerical calculation we can get the relative transmission spectrum of a hollow-core photonic crystal fiber. Compared with the result of theoretical simulation,we found that they are in accordance with each other,i.e.they have the same bandgap in about the same normalized frequency. Hits: 3618 Download times: 214 View Full Text    Download reader