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dc.contributor.authorNandy, Biplob Kumar
dc.contributor.authorChaitanya Kumar, S.
dc.contributor.authorCanals Casals, J.
dc.contributor.authorYe, Hanyu
dc.contributor.authorEbrahim-Zadeh, Majid
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.date.accessioned2018-11-29T14:59:18Z
dc.date.available2018-11-29T14:59:18Z
dc.date.issued2018-11-29
dc.identifier.citationNANDY, BIPLOB [et al.]. Tunable high-average-power optical parametric oscillators near 2 μm. "Journal of the Optical Society of America B: Optical Physics", 29 Novembre 2018, vol. 35, núm. 12, p. C57-C67.
dc.identifier.urihttp://hdl.handle.net/2117/125238
dc.description.abstractWe report on the development of high-average-power nanosecond and picosecond laser sources tunable near 2 μm based on optical parametric oscillators (OPOs) pumped by solid-state Nd:YAG and Yb-fiber lasers at 1.064 μm. By exploiting 50-mm-long MgO-doped lithium niobate (MgO:PPLN) as the nonlinear crystal and operating the OPO in a near-degenerate doubly resonant configuration with intracavity wavelength selection elements, we have generated tunable high-average-power radiation across 1880–2451 nm in high spectral and spatial beam quality with excellent output stability. In nanosecond operation, pumping with a Q-switched Nd:YAG laser and using an intracavity prism for spectral control, we have generated more than 2 W of average power in pulses of 10 ns duration at 80 kHz repetition rate with narrow linewidth (<3 nm), with M2 < 2.8, and a passive power stability better than 2.2% rms over 1 h. In picosecond operation, pumping with a mode-locked Ybfiber laser and using a diffraction grating as the wavelength selection element, we have generated more than 5 W of average power in pulses of 20 ps at 80 MHz repetition rate with narrow bandwidth (∼2.5 nm), with M2 < 1.8 and a passive power stability better than 1.3% rms over 2 h. The demonstrated sources represent viable alternatives to Tm3 ∕Ho3 -doped solid-state and fiber lasers for the generation of high-power radiation in the ∼2 μm spectral range.
dc.format.extent11 p.
dc.language.isoeng
dc.publisherOSA
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshOptical parametric oscillators
dc.subject.otheroptical parametric oscillators
dc.titleTunable high-average-power optical parametric oscillators near 2 μm
dc.typeArticle
dc.subject.lemacOscil·ladors
dc.identifier.doi10.1364/JOSAB.35.000C57
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.osapublishing.org/josab/abstract.cfm?uri=josab-35-12-C57
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidBES-2016-079359
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO//TEC2015-68234-R/ES/NOVELA ULTRARRAPIDA ULTRABROADBAND OPTICOS PARAMETRICOS OSCILADORES/
dc.relation.projectidSEV-2015-0522-16-1
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/642661/EU/Infrared sensing made visible: Combining infrared light sources and upconversion sensors for improved sensitivity in medical applications and gas analysis/Mid-TECH
local.citation.publicationNameJournal of the Optical Society of America B: Optical Physics
local.citation.volume35
local.citation.number12
local.citation.startingPageC57
local.citation.endingPageC67


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