Xing-tao Zhao,Yi Zheng,Xiao-xu Liu,Shu-guang Li,Ying Han,Zhi-yun Hou,Na Wang,Lan-tian Hou.Modal cutoff in rare-earth-doped photonic crystal fibers with multi-layer air-holes missing in the core[J].Optoelectronics Letters,2013,9(3):201-203 Modal cutoff in rare-earth-doped photonic crystal fibers with multi-layer air-holes missing in the core Author Name Affiliation E-mail Xing-tao Zhao  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China  zxt-81@sohu.com  Yi Zheng  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Xiao-xu Liu  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Shu-guang Li  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Ying Han  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Zhi-yun Hou  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Na Wang  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Lan-tian Hou  Key Lab. of Measurement Technology and Instrumentation of Hebei Province, State Key Lab. of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China Laser Institute of Science College, Beijing Jiaotong University, Beijing, 100044, China College of Physics and Chemistry, Hebei Normal University of Science&Technology, Qinhuangdao, 066004, China    Abstract:       The various mode effective indices of the doped photonic crystal fibers (PCFs) are compared, the mode field distributions of the fundamental mode and the second-order mode are analyzed, and the single-mode condition is presented. The mode effective indices of large-core doped PCFs with different core indices and structure parameters are simulated by the finite element method (FEM). The relations of the core index with the fiber structure parameters of pitch, hole-to-pitch ratio and core diameter are obtained for single-mode propagation. In the design and fabrication of the doped PCF, we can adjust the core index and fiber structure parameters to achieve large mode area and single-mode propagation. Hits: 3885 Download times: 78 View Full Text    Download reader