A tunable acousto-optic fiber filter based on two simultaneous mode coupling processes | |
Miao Ren ; Zhang Wei ; Feng Xue ; Zhao Jian-Hui ; Liu Xiao-Ming | |
2010-10-12 ; 2010-10-12 | |
关键词 | Experimental/ acousto-optical filters diffraction gratings optical fibre filters optical tuning/ tunable acousto-optic fiber filter complex spectra phase-shifted long period fiber gratings acousto-optic coupling transmission spectrum discrete phase shifts index modulation/ A4280C Spectral and other filters A4265 Nonlinear optics A4280F Gratings, echelles B4170 Acousto-optical devices B4340 Nonlinear optics and devices |
中文摘要 | A dynamically tunable fiber filter realizing complex spectra of phase-shifted long period fiber gratings (LPFGs) is proposed and demonstrated experimentally. The principle of the filter is based on two acousto-optic coupling processes occurring simultaneously. The first coupling process acts as a normal LPFG, while the second makes the coupling direction of the first process change continuously, leading to a similar transmission spectrum with the phase-shifted LPFGs, in which the changing of coupling direction is realized by the discrete phase shifts of the index modulation. By adjusting the acoustic drive signals, its transmission spectrum can be dynamically tuned to realize the phase-shifted LPFGs' spectra under different phase shift numbers and locations. |
语种 | 英语 |
出版者 | Chinese Physical Society ; China |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/82847] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Miao Ren,Zhang Wei,Feng Xue,et al. A tunable acousto-optic fiber filter based on two simultaneous mode coupling processes[J],2010, 2010. |
APA | Miao Ren,Zhang Wei,Feng Xue,Zhao Jian-Hui,&Liu Xiao-Ming.(2010).A tunable acousto-optic fiber filter based on two simultaneous mode coupling processes.. |
MLA | Miao Ren,et al."A tunable acousto-optic fiber filter based on two simultaneous mode coupling processes".(2010). |
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