University of Limerick Institutional Repository

A microfiber knot incorporating a tungsten disulfide saturable absorber based multi-wavelength mode-locked erbium-doped fiber laser

DSpace Repository

Show simple item record Li, Shi Yi, Yating Yin, Yu Jiang, Yuxuan Zhao, Haiyan Du, Yanqiu Chen, Yujin Lewis, Elfed Farrell, Gerald Wadi Harun, Sulaiman Wang, Pengfei 2019-01-10T16:30:58Z 2019-01-10T16:30:58Z 2018
dc.description peer-reviewed en_US
dc.description.abstract A novel multi-wavelength mode-locked Erbium-doped fiber laser with tungsten disulfide (WS2) combined with a microfiber knot is described. This hybrid fiber structure facilitates strong light matter interaction between the saturated absorption of the WS2 material and high optical non-linearity of the microfiber knot. It is demonstrated experimentally that the novel fiber laser works stably in the absence of an external comb filter, with the generation of stable multi-wavelength picosecond pulses. In the multi-wavelength lasing regime, up to 7-wavelength stable mode-locked pulses are obtained using a polarization controller with the pump power at ~250 mW. The pulse period and the pulse width are 188.7 ns and 16.3 ps respectively. In addition, the number of multi-wavelength lasing channels can be changed by simply adjusting the microfiber knot size. Experimental results show the laser to have a stable output over 12 hours recording period. The results of this investigation demonstrate that the optical microfiber knot with a WS2 overlay based fiber laser device can operate as a highly nonlinear optical component and a saturable absorber. The proposed multi-wavelength lasing device can therefore be widely used for non-linear and ultrafast photonics and has a number of advantages compared to similar devices using more conventional technologies, including low cost and good stability en_US
dc.language.iso eng en_US
dc.publisher IEEE Computer Society en_US
dc.relation.ispartofseries Journal of Lightwave Technology;36 (23), pp. 5633-5639
dc.rights © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en_US
dc.subject fiber laser en_US
dc.subject multi-wavelength en_US
dc.subject microfiber knot en_US
dc.subject high nonlinearity en_US
dc.title A microfiber knot incorporating a tungsten disulfide saturable absorber based multi-wavelength mode-locked erbium-doped fiber laser en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1109/JLT.2018.2877583
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


My Account