Superluminal Propagation Induced by Forward Stimulated Brillouin Scattering in Small-core Photonic Crystal Fibers

doi:10.3788/gzxb20204907.0706002

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	Superluminal Propagation Induced by Forward Stimulated Brillouin Scattering in Small-core Photonic Crystal Fibers
	Wu, Dong-Ming; Hou, Shang-Lin; Lei, Jing-Li; Wang, Dao-Bin; Li, Xiao-Xiao
刊名	Guangzi Xuebao/Acta Photonica Sinica
	2020-07-01
卷号	49 期号:7
关键词	Acoustic fields Acoustic wave scattering Crystal whiskers Electromagnetic wave propagation Fibers Forward scattering Fourier transforms Frequency domain analysis Lattice vibrations Light transmission Optical pumping Photonic crystal fibers Refractive index Single mode fibers Wave equations Acoustic field distribution Coupled wave equations Fourier transformations Group refractive index Nonlinear interactions Pulse broadening factors Superluminal propagation Transmission distances
ISSN号	10044213
DOI	10.3788/gzxb20204907.0706002
英文摘要	The forward stimulated Brillouin scattering based fast light in small-core photonic crystal fibers is theoretically investigated. Three-wave coupled wave equations of forward stimulated Brillouin scattering in frequency domain were derived to calculate the group refractive index and gain coefficient in small-core photonic crystal fibers by Fourier transformation, then optical and acoustic field distribution, advancement and broadening factor of signal pulses induced by forward stimulated Brillouin scattering were simulated by the finite element method. Tight confinement of the optical fundamental mode and acoustic modes strengthens nonlinear interaction in the small-core photonic crystal fibers and results in strong SBS and large advancement of time. The time advancement grows nonlinearly with the transmission distance of signal light increasing, and the signal pulses are compressed. The pulse broadening factor gradually levels off with the growth of the initial pulse width. The time advancement of 21.76 ns and pulse broadening factor of 0.77 are evaluated at the transmission distance of 70 m, the initial pulse width of 200 ns and the pumping pulse power of 600 mW. © 2020, Science Press. All right reserved.
WOS研究方向	Optics
语种	英语
出版者	Chinese Optical Society
WOS记录号	WOS:000577355400002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115019]
专题	理学院
作者单位	School of Science, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wu, Dong-Ming,Hou, Shang-Lin,Lei, Jing-Li,et al. Superluminal Propagation Induced by Forward Stimulated Brillouin Scattering in Small-core Photonic Crystal Fibers[J]. Guangzi Xuebao/Acta Photonica Sinica,2020,49(7).
APA	Wu, Dong-Ming,Hou, Shang-Lin,Lei, Jing-Li,Wang, Dao-Bin,&Li, Xiao-Xiao.(2020).Superluminal Propagation Induced by Forward Stimulated Brillouin Scattering in Small-core Photonic Crystal Fibers.Guangzi Xuebao/Acta Photonica Sinica,49(7).
MLA	Wu, Dong-Ming,et al."Superluminal Propagation Induced by Forward Stimulated Brillouin Scattering in Small-core Photonic Crystal Fibers".Guangzi Xuebao/Acta Photonica Sinica 49.7(2020).