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A new type of THz photonic crystal fiber with super-flattened dispersion and air hole varying cladding is designed in this paper. Its dispersion properties are analyzed by using the finite-difference time-domain (FDTD) method. The results show that the new THz photonic crystal fiber is better than THz photonic crystal fiber with air hole unarying cladding in controlling the dispersion, and that the new THz photonic crystal fiber has the flattened dispersion when the third ring diameter has the same value as the forth ring diameter. When the air hole diameters are d1=0.85d4, d2=0.95d4,d3=d4(d1,d2,d3,d4 are the diameters of air hole from the inter clad to the outer clad), the new THz photonic crystal fiber can have almost super-flattened dispersion at a level of -0.1±0.3 ps/(nm·km), a good ability to restrict the THz wave and a low loss in a wavelength reange between 60 μm and 65 μm.
[1] Zhu Y W, Shi S X, Liu J F, Sun Y L 2009 Acta Phys. Sin. 58 1042(in Chinese)[朱言午、时顺祥、刘继芳、孙艳玲 2009 物理学报 58 1042]
[2] Russell P S J 2000 Proc. The Optical Fiber Communication Conference and Exposition 3 98
[3] Knight J C 2003 Nature 14 847
[4] Park H, Cho M, Kim J 2002 Phys. Med. Biol. 47 3765
[5] Soan K, Chul K, Jongmin L 2007 Opt. Express 15 213
[6] Yuan J H, Hou L T, Zhou G Y 2008 Acta Opt. Sin. 28 1165(in Chinese)[苑金辉、侯蓝田、周桂耀 2008 光学学报 28 1165]
[7] Zhang Y J, Zhao J L, Hou J P 2007 Acta Phys. Sin. 56 1042(in Chinese)[张晓娟、赵建林、侯建平 2007 物理学报 56 1042]
[8] Yee K 1966 IEEE Trans. Antennas Propagate 14 302
[9] Gedney S D, 1996 IEEE Trans. Antennas Propagate 44 1630
[10] Wei B, Ge D B, Wang F 2008 Acta Phys. Sin. 57 6290[魏 兵、葛德彪、王 飞 2008 物理学报 57 6290]
[11] Li Y Q, Cui M 2002 Optical Waveguide Theory and Technology (Vol. 1) (Beijing: Posts and Telecommunication Press) p157 (in Chinese) [李玉权、崔 敏 2002 光波导理论与技术 (北京: 人民邮电出版社) 第157页]
[12] Lou S Q, Ren G B, Yan F P, Jian S S 2005 Acta Phys. Sin. 54 1229(in Chinese)[娄淑琴、任国斌、延凤平、简水生 2005 物理学报 54 1229]
[13] Okamoto K. 2000 Fundament of Optical Waveguides (Academic Press) p1
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[1] Zhu Y W, Shi S X, Liu J F, Sun Y L 2009 Acta Phys. Sin. 58 1042(in Chinese)[朱言午、时顺祥、刘继芳、孙艳玲 2009 物理学报 58 1042]
[2] Russell P S J 2000 Proc. The Optical Fiber Communication Conference and Exposition 3 98
[3] Knight J C 2003 Nature 14 847
[4] Park H, Cho M, Kim J 2002 Phys. Med. Biol. 47 3765
[5] Soan K, Chul K, Jongmin L 2007 Opt. Express 15 213
[6] Yuan J H, Hou L T, Zhou G Y 2008 Acta Opt. Sin. 28 1165(in Chinese)[苑金辉、侯蓝田、周桂耀 2008 光学学报 28 1165]
[7] Zhang Y J, Zhao J L, Hou J P 2007 Acta Phys. Sin. 56 1042(in Chinese)[张晓娟、赵建林、侯建平 2007 物理学报 56 1042]
[8] Yee K 1966 IEEE Trans. Antennas Propagate 14 302
[9] Gedney S D, 1996 IEEE Trans. Antennas Propagate 44 1630
[10] Wei B, Ge D B, Wang F 2008 Acta Phys. Sin. 57 6290[魏 兵、葛德彪、王 飞 2008 物理学报 57 6290]
[11] Li Y Q, Cui M 2002 Optical Waveguide Theory and Technology (Vol. 1) (Beijing: Posts and Telecommunication Press) p157 (in Chinese) [李玉权、崔 敏 2002 光波导理论与技术 (北京: 人民邮电出版社) 第157页]
[12] Lou S Q, Ren G B, Yan F P, Jian S S 2005 Acta Phys. Sin. 54 1229(in Chinese)[娄淑琴、任国斌、延凤平、简水生 2005 物理学报 54 1229]
[13] Okamoto K. 2000 Fundament of Optical Waveguides (Academic Press) p1
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