本文根据全矢量模型首先对背景材料取为 silica 材料的六角形光子晶体光纤(PCF)结构,在不同空气孔直径下对基模非线性系数的影响进行数值研究,在此基础上,进一步将光子晶体背景材料折射率取为 -1.45 进行仿真数值研究,探究负折射率介质材料在不同空气孔直径下对基模非线性系数影响的物理规律性,数值研究发现,无论背景材料的折射率为正,还是为负,增大空气孔的直径d都会使非线性系数增大;不同的是,当背景材料取为负折射率材料时,会出现负的非线性系数,这将对设计不同要求的非线性微结构光纤提供有效的理论依据.
参考文献
| [1] | Birks TA;Knight JC;Russell PS .Endlessly single-mode photonic crystal fiber[J].Optics Letters,1997(13):961-963. |
| [2] | Knight JC.;Birks TA.;Ortigosa-Blanch A.;Wadsworth WJ. Russell PS.;Arriaga J. .Anomalous dispersion in photonic crystal fiber[J].IEEE Photonics Technology Letters,2000(7):807-809. |
| [3] | A. Ortigosa-Blanch;J. C. Knight;W. J. Wadsworth .Highly birefringent photonic crystal fibers[J].Optics Letters,2000(18):1325-1327. |
| [4] | P. Petropoulos;T. M. Monro;W. Belardi;K. Furusawa;J. H. Lee;D. J. Richardson .2R-regenerative all-optical switch based on a highly nonlinear holey fiber[J].Optics Letters,2001(16):1233-1235. |
| [5] | Vesolago V G .The electrodynamics of substances with simultaneously negative values of ε and μ[J].Soviet Physics Uspekhi,1968,10(04):509-514. |
| [6] | Smith DR.;Kroll N. .Negative refractive index in left-handed materials[J].Physical review letters,2000(14):2933-2936. |
| [7] | Pendry JB. .Negative refraction makes a perfect lens[J].Physical review letters,2000(18):3966-3969. |
| [8] | Zhang Z M;Fu C J .Unusual photon tunneling in the presence of a 1ayer with a negative refractive index[J].Applied PhyicsLetters,2002,80(06):1097-1099. |
| [9] | Kosaka H;Kawashima T;Tomigta A et al.Photonic crystals for microllght wave circuits using wavelength-dependent angular beam steering[J].Applied Physics Letters,1999,74(10):1370. |
| [10] | Kosaka H;Kawashima T;Tomigta A et al.Superprisrn phenomena in photonic ctystrals[J].Physical Review B,1998,58(16):10096. |
| [11] | Snyder A W.Optical waveguide theory[M].New York:Chapman and Hall,1983:45. |
| [12] | Zhi W;Chlobin R;Shuqin L et al.Supercell lattice method for photonic crystal fibers[J].Optics Express,2003,11(09):980-991. |
| [13] | Guobin R;Zhi W;Shuqin L et al.Mode classiflcation and degeneracy in photonic crystal fibers[J].Optics Express,2003(11):1310-1321. |
| [14] | Letartre X;Monat C;Seassal C;Viktorovitch P .Analytical modeling and an experimental investigation of two-dimensional photonic crystal microlasers: defect state (microcavity) versus band-edge state (distributed feedback) structures[J].Journal of the Optical Society of America, B. Optical Physics,2005(12):2581-2595. |
| [15] | Govind P.Nonlinear fiber optics & applications of nonlinear fiber optics[M].北京:电子工业出版社,2002:7-8. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%