.[5] Song Ningfang; Gao Fuyu; Xu Xiaobin; Cai Wei; Li Wei. Investigation of Interstice Collapse for Hollow-Core Photonic Bandgap Fiber Fabrication. IEEE Photonics Technology Letters, 2018, 30(7):638-641.
.[4] Song, Ningfang; Lu, Xiangxiang; Li, Wei; Li, Yang; Wang, Yingying; Liu, Jixun; Xu, Xiaobin; Pan, Xiong. Determining optical path difference with a frequency-modulated continuous-wave method. Applied Optics, 2015, 54(22).
.[3] Song, Ningfang; Lu, Xiangxiang; Xu, Xiaobin; Pan, Xiong; Li, Wei; Hu, Di; Liu, Jixun. Measurement of frequency sweep nonlinearity using atomic absorption spectroscopy. Optics Communications, 2017, 407.
.[2] Song, Ningfang; Wu, Chunxiao; Luo, Wenyong; Zhang, Zuchen; Li, Wei. High strength fusion splicing of hollow core photonic crystal fiber and single-mode fiber by large offset reheating. Optical Fiber Technology, 2016, 32:106-110.
.[1] Song, Ningfang; Cai, Wei; Song, Jingming; Jin, Jing; Wu, Chunxiao. Structure optimization of small-diameter polarization-maintaining photonic crystal fiber for mini coil of spaceborne miniature fiber-optic gyroscope. Applied Optics, 2015, 54(33).