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The grating fabrication technology with heat method in photonic crystal fiber based on its structural change is researched. The principle of photonic crystal fiber grating is analyzed theor etically. Heat transfer theory and finite element method are both used to analyze the thermal field distribution in the fiber, as well as the influence of air hole structure in the cladding, and the parameters of laser beam in the process of grating fabrication are discussed. The research results show that the grating can be formed by the periodic air hole collapse in the cladding of photonic crystal fiber. Under double-point heating, the energy will be uniformly distributed in the radial direction and approximated by the Gaussian distribution in the axial direction. The collapsed air holes in the cladding accelerate the process of forming grating. In the same size of luminous spot, as the layers and the radii of air holes increase, the laser power for collapsing fiber decreases. Moreover, the relationship between laser power and air filling rate is obtained by stimulating the grating fabrication process in photonic crystal fiber with 1 to 7 layers of air holes. This kind of photonic crystal fiber grating can improve the thermal and long-term stability of conventional grating, and so it will have great potential applications in the relevant fields of optical fiber sensors.
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Keywords:
- fiber grating /
- photonic crystal fiber /
- heat method /
- finite element method
[1] Hou L T, Yang Q Q 2009 Acta Phys. Sin. 58 8345(in Chinese)[侯蓝田、杨倩倩 2009 物理学报58 8345]
[2] Zhang M Y, Li S G, Yao Y Y, Zhang L, Fu B, Yin G B 2010 Acta Phys. Sin. 59 3278(in Chinese)[张美艳、李曙光、姚艳艳、张 磊、付 博、尹国冰 2010 物理学报 59 3278]
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[4] Sharping J E, Fiorentino M, Kumar P, Windeler R S 2002 Opt. Lett. 27 1675
[5] John M F 2004 Meas. Sci. Technol. 15 1120
[6] Guan B O,Tam H Y, Tao X M 2000 Photon. Technol. Lett. 12 1349
[7] Dong L, Liu W F 1997 Appl. Opt. 36 8222
[8] Zhu Y N, Shum P, Chong H J 2003 Opt.Express 11 1900
[9] Sun L M,Cai H W 2006 Chin. J. Las. 33 96(in Chinese)[孙利民、蔡海文 2006 中国激光 33 96]
[10] White T P, Kuhlmey B T, McPhedran R C, Maystre D , Renversez G. , Sterke C M D , Botten L C 2002 J. Opt. Soc. Am. B 19 2322
[11] Kuhlmey B T, White T P, Renversez G, Maystre D , Botten L C, Sterke C M D , McPhedran R C 2002 J. Opt. Soc. Am. B 19 2331
[12] Kuhlmey B T 2004 Ph. D. Dissertation (Sydny: The University of Sydney)
[13] Qi Y F,Bi W H,Liu Y Y,Wang Y 2010 Acta Opt. Sin. 30 1178(in Chinese)[齐跃峰、毕卫红、刘燕燕、王 洋 2010 光学学报30 1178]
[14] Qin Y W, Xiao G, Dong C, Hao S Z, Liu Y, Zou J X, Wu A M, Guan Q F 2003 Acta Phys. Sin. 52 3043(in Chinese)[秦 颖、王晓钢、董 闯、郝胜智、刘 悦、邹建新、吴爱民、关庆丰 2003 物理学报 52 3043]
[15] Mackwood A P, Craferb R C 2005 Opt. Laser Technol. 37 99
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[1] Hou L T, Yang Q Q 2009 Acta Phys. Sin. 58 8345(in Chinese)[侯蓝田、杨倩倩 2009 物理学报58 8345]
[2] Zhang M Y, Li S G, Yao Y Y, Zhang L, Fu B, Yin G B 2010 Acta Phys. Sin. 59 3278(in Chinese)[张美艳、李曙光、姚艳艳、张 磊、付 博、尹国冰 2010 物理学报 59 3278]
[3] Eggleton B J, Westbrook P S, Windeler R S, Splter S , Strasser T A 1999 Opt. Lett. 24 1460.
[4] Sharping J E, Fiorentino M, Kumar P, Windeler R S 2002 Opt. Lett. 27 1675
[5] John M F 2004 Meas. Sci. Technol. 15 1120
[6] Guan B O,Tam H Y, Tao X M 2000 Photon. Technol. Lett. 12 1349
[7] Dong L, Liu W F 1997 Appl. Opt. 36 8222
[8] Zhu Y N, Shum P, Chong H J 2003 Opt.Express 11 1900
[9] Sun L M,Cai H W 2006 Chin. J. Las. 33 96(in Chinese)[孙利民、蔡海文 2006 中国激光 33 96]
[10] White T P, Kuhlmey B T, McPhedran R C, Maystre D , Renversez G. , Sterke C M D , Botten L C 2002 J. Opt. Soc. Am. B 19 2322
[11] Kuhlmey B T, White T P, Renversez G, Maystre D , Botten L C, Sterke C M D , McPhedran R C 2002 J. Opt. Soc. Am. B 19 2331
[12] Kuhlmey B T 2004 Ph. D. Dissertation (Sydny: The University of Sydney)
[13] Qi Y F,Bi W H,Liu Y Y,Wang Y 2010 Acta Opt. Sin. 30 1178(in Chinese)[齐跃峰、毕卫红、刘燕燕、王 洋 2010 光学学报30 1178]
[14] Qin Y W, Xiao G, Dong C, Hao S Z, Liu Y, Zou J X, Wu A M, Guan Q F 2003 Acta Phys. Sin. 52 3043(in Chinese)[秦 颖、王晓钢、董 闯、郝胜智、刘 悦、邹建新、吴爱民、关庆丰 2003 物理学报 52 3043]
[15] Mackwood A P, Craferb R C 2005 Opt. Laser Technol. 37 99
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