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	Switchable and tunable multiple-channel erbium-doped fiber laser using graphene-polymer nanocomposite and asymmetric two-stage fiber Sagnac loop filter
	Zhou, M. ; Luo, Z. Q. ; Cai, Z. P. ; Ye, C. C. ; Xu, H. Y. ; Wang, J. Z. ; Ye CC(叶陈春)
	2011-06-20
关键词	HIGH-BIREFRINGENCE FIBER RING LASER CASCADED FIBER BRAGG GRATINGS MULTIWAVELENGTH WAVELENGTH MIRROR INTERFEROMETER GENERATION OPERATION
英文摘要	A high-performance multiple-channel erbium-doped fiber laser (EDFL) is proposed and experimentally demonstrated, using graphene-polymer nanocomposite as a multiwavelength equalizer and an asymmetric two-stage polarization-maintaining fiber (PMF) Sagnac loop as a flexible comb filter. At first, the filtering characteristics of the PMF Sagnac loop filter (SLF) are investigated. Both theoretical and experimental results show that it can provide a flexibly switchable and tunable comblike filtering. Then, the two-stage PMF SLF is inserted into a graphene-assisted EDFL cavity for generating multiwavelength oscillation. The extreme-high third-order optical nonlinearity of graphene is exploited to suppress the mode competition of the EDFL, and a stable multiple-channel lasing is observed. By carefully adjusting the polarization controllers in the two-stage PMF SLF, not only can the lasing-line number per channel be switchable between single and multiple wavelengths, but also the wavelength spacing in the triple-wavelength condition can be tunable. In the case of triple wavelengths per channel, up to 12 wavelengths with four channels stable oscillations can be achieved. The multiple-channel EDFL can keep a high extinction ratio of >40 dB and a narrow linewidth of <0.01 nm. (C) 2011 Optical Society of America
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/70659]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	Zhou, M.,Luo, Z. Q.,Cai, Z. P.,et al. Switchable and tunable multiple-channel erbium-doped fiber laser using graphene-polymer nanocomposite and asymmetric two-stage fiber Sagnac loop filter[J],2011.
APA	Zhou, M..,Luo, Z. Q..,Cai, Z. P..,Ye, C. C..,Xu, H. Y..,...&叶陈春.(2011).Switchable and tunable multiple-channel erbium-doped fiber laser using graphene-polymer nanocomposite and asymmetric two-stage fiber Sagnac loop filter..
MLA	Zhou, M.,et al."Switchable and tunable multiple-channel erbium-doped fiber laser using graphene-polymer nanocomposite and asymmetric two-stage fiber Sagnac loop filter".(2011).

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