dc.contributor.author | Beyatlı, Ersen | |
dc.contributor.author | Sumpf, Bernd | |
dc.contributor.author | Erbert, Götz | |
dc.contributor.author | Demirbaş, Ümit | |
dc.date.accessioned | 2020-12-19T20:17:46Z | |
dc.date.available | 2020-12-19T20:17:46Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Beyatli, E., Sumpf, B., Erbert, G., & Demirbas, U. (2019). Efficient Tm:YAG and Tm:LuAG lasers pumped by 681 nm tapered diodes. Applied optics, 58(11), 2973–2980. https://doi.org/10.1364/AO.58.002973 | en_US |
dc.identifier.issn | 1559-128X | |
dc.identifier.uri | https://doi.org/10.1364/AO.58.002973 | |
dc.identifier.uri | https://hdl.handle.net/11436/4442 | |
dc.description | PubMed: 31044902 | en_US |
dc.description.abstract | In this paper, we present highly efficient continuous-wave (cw) laser operation of Tm:YAG and Tm:LuAG lasers pumped by high-brightness red tapered diodes. The single-emitter tapered diode lasers (TDLs) provide up to 1 W of pump power around 680 nm. By adjusting the operation temperature of the TDL, the pump central wavelength could be matched to the strong absorption peak of Tm 3 ions in this region ( 3 H 6 ? 3 F 3 excitation). This absorption peak is around threefold stronger than the usually employed 785 nm transition ( 3 H 6 ? 3 H 4 ). In the cw laser experiments, we have achieved slope efficiencies exceeding 55% at room temperature, which is far above the Stokes limited slope efficiency (34%), indicating presence of a strong two-for-one cross-relaxation process. Pumping with high-brightness tapered diode lasers further facilitated usage of smaller pump spots (enabling quite low lasing thresholds) and generation of near-diffraction limited output beam profiles from standard z-type cavities. To the best of our knowledge, this is the first report of diode pumping of Tm-doped solid-state lasers around 680 nm as well as the first usage of TDLs as pump sources in Tm-doped laser systems. © 2019 Optical Society of America. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | OSA - The Optical Society | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.title | Efficient Tm:YAG and Tm:LuAG lasers pumped by 681 nm tapered diodes | en_US |
dc.type | article | en_US |
dc.contributor.department | RTEÜ, Mühendislik ve Mimarlık Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.contributor.institutionauthor | Beyatlı, Ersen | |
dc.identifier.doi | 10.1364/AO.58.002973 | |
dc.identifier.volume | 58 | en_US |
dc.identifier.issue | 11 | en_US |
dc.identifier.startpage | 2973 | en_US |
dc.identifier.endpage | 2980 | en_US |
dc.relation.journal | Applied Optics | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |