YTTERBIUM DOPED AND RAMAN FIBER LASERS

dc.contributorEfrain Mejia-Beltran
dc.creatorLELIO DE LA CRUZ MAY
dc.date2009-10
dc.date.accessioned2023-07-21T15:14:56Z
dc.date.available2023-07-21T15:14:56Z
dc.identifierhttp://cio.repositorioinstitucional.mx/jspui/handle/1002/581
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7725392
dc.description"This thesis reports on theoretical and experimental results of a novel Raman fiber laser (RFL) consisting on the addition of an ytterbium-doped piece of fiber to the cavity. We investigated the level of enhancement of this approach in free-running and chained configurations. The addition of the doped-fiber notably decreased the laser threshold and increased the efficiency. We found that the amplified spontaneous emission produced by the doped fiber started the stimulated Raman scattering earlier than the spontaneous scattering in a 350-m silica-fiber cavity. In the best case, when splicing to the cavity 127 cm of doped fiber, the pump threshold decreased from 2.9 W down to 1.27 W, representing a 56% improvement. This power was close to the theoretical minimum of 1.25 W for very long fibers. The second stokes signal (1175 nm) was only present when the doped fibers were inserted. At 4-W pump, the non-doped cavity delivered 2 W of first stokes signal (1115 nm) that represent a 50 % efficiency compared to ∼3 W delivered (~75 %) when a 34-cm doped fiber was inserted. This improvement is intended to reduce the cost of RFL’s because less powerful sources or shorter fibers are necessary to produce more stokes components."
dc.formatapplication/pdf
dc.languageeng
dc.relationcitation:De la Cruz May, (2009). "Ytterbium doped and Raman Fiber Lasers". Tesis de Doctorado en Ciencias (Óptica). Centro de Investigaciones en Óptica, A.C. León, Guanajuato. 60 pp.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/AUTOR/YTTERBIUM, DOPED FIBERS, RARE-EARTH, RAMAN SCATTERING, FIBER LASER, RFL
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/22
dc.subjectinfo:eu-repo/classification/cti/2209
dc.subjectinfo:eu-repo/classification/cti/220905
dc.subjectinfo:eu-repo/classification/cti/220905
dc.titleYTTERBIUM DOPED AND RAMAN FIBER LASERS
dc.typeinfo:eu-repo/semantics/doctoralThesis
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageLeón, Guanajuato
dc.audiencegeneralPublic


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