An all-fiber ultra-low numerical aperture high power fiber MOPA system with an output power above 500 W

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buir.contributor.authorMidilli, Yakup
buir.contributor.authorOrtaç, Bülend
dc.contributor.authorMidilli, Yakupen_US
dc.contributor.authorOrtaç, Bülenden_US
dc.coverage.spatialMunich, Germanyen_US
dc.date.accessioned2020-01-28T06:56:06Z
dc.date.available2020-01-28T06:56:06Z
dc.date.issued2019
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.descriptionDate of Conference: 23-27 June 2019en_US
dc.descriptionConference Name: 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019en_US
dc.description.abstractOptical fiber technology has been developed dramatically in the last two decades. Especially, the invention of the Large Mode Area (LMA) fibers has made a great impact, and consequently the power scale of the fiber lasers started to increase exponentially [1]. However, at a certain point this increase has been saturated due to the non-linear effects such as Stimulated Raman Scattering (SRS) and Thermal Modal Instability (TMI). Therefore, a new approach has been proposed to mitigate these so called problems by decreasing the numerical aperture (NA) of the LMA active fiber so that it behaves like an intrinsically single mode fiber. In the literature, an active fiber having ultra-low (<; 0.04) NA, is proposed [2, 3] in 2009; and finally, the highest power, which is 4.3 kW, was demonstrated in 2017 [4]. However, all of these works based on free space orientation. In this letter, we demonstrate all-fiber and monolithic version of the high power low NA fiber laser system based on an Yb-doped active fiber having 26 μm/410 μm core/cladding diameters respectively with a NA of 0.032 which has also been verified experimentally.en_US
dc.description.sponsorshipEPS Young Mindsen_US
dc.description.sponsorshipQuantum Electronics and Optics Divisionen_US
dc.identifier.doi10.1109/CLEOE-EQEC.2019.8872840en_US
dc.identifier.eisbn9781728104690
dc.identifier.isbn9781728104706
dc.identifier.urihttp://hdl.handle.net/11693/52855
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.isversionofhttps://dx.doi.org/10.1109/CLEOE-EQEC.2019.8872840en_US
dc.source.title2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019en_US
dc.subjectOptical fiber amplifiersen_US
dc.subjectFiber lasersen_US
dc.subjectPower lasersen_US
dc.subjectLaser modesen_US
dc.subjectMeasurement by laser beamen_US
dc.subjectOptimized production technologyen_US
dc.titleAn all-fiber ultra-low numerical aperture high power fiber MOPA system with an output power above 500 Wen_US
dc.typeConference Paperen_US
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