| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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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) |
| Institute of Optical Communication, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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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.
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Received: 25 November 2011
Revised: 20 March 2012
Accepted manuscript online:
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PACS:
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42.70.Qs
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(Photonic bandgap materials)
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42.81.Cn
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(Fiber testing and measurement of fiber parameters)
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63.20.kp
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(Phonon-defect interactions)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61077084). |
Corresponding Authors:
Shi Wei-Hua
E-mail: njupt_shiwh@126.com
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Cite this article:
Shi Wei-Hua(施伟华), Zhao Yan(赵岩), Qian Li-Guo(钱礼国), and Chen He-Ming(陈鹤鸣) Effect of single point defect on the confinement losses of air-guiding photonic bandgap fibers 2012 Chin. Phys. B 21 074210
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