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Propagation of femtosecond pulse and supercontinuum generation in silicon waveguide are investigated numerically by solving the generalized nonlinear Schrdinger equation. The effects of dispersive effect and nonlinear loss on supercontinuum generation are simulated and analyzed. It is found that soliton fission is the main mechanism of supercontinuum generation in silicon waveguide. The relative position between the central wavelength of femtosecond pulse and zero-dispersive wavelength (ZDW) of silicon waveguide significantly affects the generation of supercontinuum. When the input pulse falls in the anomalous dispersion regime, soliton fission phenomenon is most obvious. It is also found that the high-order dispersion plays an important role in supercontinuum generation. When the absolute value of third-order dispersion is smaller, a broader supercontinuum can be obtained. Besides, two-photon absorption (TPA) effect in silicon induces high loss, and reduces the spectral width of the supercontinuum.
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Keywords:
- supercontinuum /
- soliton fission /
- dispersive effect /
- silicon waveguide
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[22] Chen X G, Panoiu N C, Osgood R M 2006 Opt. Express.14 5524
[23] [24] Hsieh I W, Chen X G, Liu,X P, Dadap J I, Panoiu N C, Chou C Y, Xia F N, Green W M, Vlasov Y A, Osgood R M 2007 Opt. Express.15 15242
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[1] Hartl I, Li X D, Fujimoto J G, Ranka J K, Windeler R S 2001 Opt. Lett. 26 608
[2] Jones D J, Diddams S A, Ranka J K, Cundiff S T 2000 Science 288 635
[3] [4] [5] Holzwarth R, Udem Th, Hnsch T W, Knight J C, Wadsworth W J, Russell P St J 2000 Phys. Rev. Lett. 85 2264
[6] [7] Jia Y Q, Yan P G, Lv K C, Zhang T Q, Zhu X N 2006 Acta Phys. Sin. 55 1809 (in Chinese) [贾亚青、闫培光、吕可诚、张铁群、朱晓农 2006 物理学报 55 1809]
[8] [9] Cheng C F, Wang X F, Lu B 2004 Acta Phys. Sin. 53 1826 (in Chinese) [成纯厚、王晓方、鲁 波 2004 物理学报 53 1826]
[10] Chen Y Z, Li Y Z, Qu G, Xu W C 2006 Acta Phys. Sin. 55 717 (in Chinese) [陈泳竹、李玉忠、屈 圭、徐文成 2006 物理学报 55 717]
[11] [12] Wadsworth W J, Ortigosa B A, Knight J C, Birks T A, Man T P M, Russell P St J 2002 J. Opt. Soc. Am. B 19 2148
[13] [14] [15] Cristiani I, Tediosi R, Tartara L, Degiorgio V 2004 Opt. Express 12 124
[16] [17] Boyraz O, Indukuri T, Jalali B 2004 Opt. Express 12 829
[18] Osgood R M, Panoiu N C, Dadap J I, Liu X P, Chen X G, Hsieh I W, Dulkeith E, Green W M J, Vlasov Y A 2009 Adv.Opt.Photon.1 162
[19] [20] [21] Koonath P, Raghunathan V, Jalali B 2004 Opt. Express.12 4094
[22] Chen X G, Panoiu N C, Osgood R M 2006 Opt. Express.14 5524
[23] [24] Hsieh I W, Chen X G, Liu,X P, Dadap J I, Panoiu N C, Chou C Y, Xia F N, Green W M, Vlasov Y A, Osgood R M 2007 Opt. Express.15 15242
[25] [26] Yin L H, Lin Q, Agrawal G P 2007 Opt.Lett.32 391
[27] [28] [29] Lin Q, Painter O J, Agrawal G P 2007 Opt. Express.15 16604
[30] [31] Agrawal G P 2006 Nonlinear Fiber Optics (New York: Academic) p39
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