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dc.contributor.authorChen, Shaoxiangen_US
dc.contributor.authorChen, Yuhaoen_US
dc.contributor.authorLiu, Kunen_US
dc.contributor.authorSidharthan, Raghuramanen_US
dc.contributor.authorLi, Huizien_US
dc.contributor.authorChang, Chen Jianen_US
dc.contributor.authorWang, Qi Jieen_US
dc.contributor.authorTang, Dingyuanen_US
dc.contributor.authorYoo, Seongwooen_US
dc.identifier.citationChen, S., Chen, Y., Liu, K., Sidharthan, R., Li, H., Chang, C. J., . . . Yoo, S. (2020). All-fiber short-wavelength tunable mode-locked fiber laser using normal dispersion thulium-doped fiber. Optics Express, 28(12), 17570. doi:10.1364/oe.395167en_US
dc.description.abstractWe report an all-fiber high pulse energy ultrafast laser and amplifier operating at the short wavelength side of the thulium (Tm) emission band. An in-house W-type normal dispersion Tm-doped fiber (NDTDF) exhibits a bending-induced distributed short-pass filtering effect that efficiently suppresses the otherwise dominant long wavelength emission. By changing the bending diameter of the fiber, we demonstrated a tunable mode-locked Tm-doped fiber laser with a very wide tunable range of 152 nm spanning from 1740 nm to 1892 nm. Pulses at a central wavelength of 1755 nm were able to be amplified in an all-fiber configuration using the W-type NDTDF, without the use of any artificial short-pass filter or pulse stretcher. The all-fiber amplifier delivers 2.76 ps pulses with an energy of ∼32.7 nJ without pulse break-up, due to the normal dispersion nature of the gain fiber, which marks so far, the highest energy amongst fiber lasers in the 1700 nm-1800 nm region.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.relation.ispartofOptics Expressen_US
dc.rights© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleAll-fiber short-wavelength tunable mode-locked fiber laser using normal dispersion thulium-doped fiberen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.organizationThe Photonics Instituteen_US
dc.description.versionPublished versionen_US
dc.subject.keywordsFiber Lasersen_US
dc.subject.keywordsNormal Dispersionen_US
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