中国物理B ›› 2012, Vol. 21 ›› Issue (7): 74210-074210.doi: 10.1088/1674-1056/21/7/074210

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Effect of single point defect on the confinement losses of air-guiding photonic bandgap fibers

施伟华, 赵岩, 钱礼国, 陈鹤鸣   

  1. Institute of Optical Communication, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2011-11-25 修回日期:2012-03-20 出版日期:2012-06-01 发布日期:2012-06-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61077084).

Effect of single point defect on the confinement losses of air-guiding photonic bandgap fibers

Shi Wei-Hua(施伟华)†, Zhao Yan(赵岩), Qian Li-Guo(钱礼国), and Chen He-Ming(陈鹤鸣)   

  1. Institute of Optical Communication, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2011-11-25 Revised:2012-03-20 Online:2012-06-01 Published:2012-06-01
  • Contact: Shi Wei-Hua E-mail:njupt_shiwh@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61077084).

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摘要： The confinement losses in air-guiding photonic bandgap fibers (PBGFs) with air hole missing are studied with full-vector finite-element method. It is confirmed that there are two loss peaks (1.555 and 1.598 μm), if there is a hole missing in the cladding far from the core. The closer to the core the hole missing is, the larger the confinement losses are, even no mode could propagate in the core. The main power of the fundamental mode leaks from the core to the cladding defect. The quality of PBGFs can be improved through controlling the number and position of defects.

关键词: photonic bandgap fiber, photonic bandgap (PBG), defect mode, confinement loss

Abstract: The confinement losses in air-guiding photonic bandgap fibers (PBGFs) with air hole missing are studied with full-vector finite-element method. It is confirmed that there are two loss peaks (1.555 and 1.598 μm), if there is a hole missing in the cladding far from the core. The closer to the core the hole missing is, the larger the confinement losses are, even no mode could propagate in the core. The main power of the fundamental mode leaks from the core to the cladding defect. The quality of PBGFs can be improved through controlling the number and position of defects.

Key words: photonic bandgap fiber, photonic bandgap (PBG), defect mode, confinement loss

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
42.81.Cn (Fiber testing and measurement of fiber parameters) 63.20.kp (Phonon-defect interactions)