dc.contributor.authorGu, Jian
dc.contributor.authorYang, Yanfu
dc.contributor.authorLiu, Meng
dc.contributor.authorZhang, Jianyu
dc.contributor.authorWang, Xiaorui
dc.contributor.authorYuan, Yijun
dc.contributor.authorYao, Yong
dc.date.accessioned2015-10-16T05:57:33Z
dc.date.available2015-10-16T05:57:33Z
dc.date.copyright2015en_US
dc.date.issued2015
dc.identifier.citationGu, J., Yang, Y., Liu, M., Zhang, J., Wang, X., Yuan, Y., et al. (2015). A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber. Journal of Applied Physics, 118(10), 103107-.en_US
dc.identifier.urihttp://hdl.handle.net/10220/38807
dc.description.abstractWe have proposed and demonstrated a novel switchable single-longitudinal-mode (SLM), dual-wavelength erbium-doped fiber laser (DWEDFL) assisted by Rayleigh backscattering (RBS) in a tapered fiber in a ring laser configuration. The RBS feedback in a tapered fiber is a key mechanism as linewidth narrowing for laser output. A compound laser cavity ensured that the EDFL operated in the SLM state and a saturable absorber (SA) is employed to form a gain grating for both filtering and improving wavelength stability. The fiber laser can output dual wavelengths simultaneously or operate at single wavelength in a switchable manner. Experiment results show that with the proper SA, the peak power drift was improved from 1–2 dB to 0.31 dB and the optical signal to noise ratio was higher than 60 dB. Under the assistance of RBS feedback, the laser linewidths are compressed by around three times and the Lorentzian 3 dB linewidths of 445 Hz and 425 Hz are obtained at 1550 nm and 1554 nm, respectively.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesJournal of Applied Physicsen_US
dc.rights© 2015 American Institute of Physics (AIP). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4930054]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectLinewidthsen_US
dc.subjectFiber Bragg gratings
dc.subjectStimulated Brillouin scattering
dc.subjectCavitation
dc.subjectFiber lasers
dc.titleA switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiberen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1063/1.4930054
dc.description.versionPublished versionen_US


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