SPECTRAL AND TEMPORAL DYNAMICS IN ACTIVELY Q-SWITCHED ERBIUM-DOPED FIBER LASERS

dc.contributorYuri Barmenkov
dc.contributorALEXANDER KIRIYANOV
dc.creatorJosue Minguela
dc.date2017-12
dc.date.accessioned2023-07-21T15:14:40Z
dc.date.available2023-07-21T15:14:40Z
dc.identifierhttp://cio.repositorioinstitucional.mx/jspui/handle/1002/364
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7725278
dc.description"In the present dissertation work, the spectral and temporal features of actively Q-switched erbium-doped fiber lasers are reported. These features were investigated for two common laser configurations: for the linear Fabry-Pérot cavity with a pair of fiber Bragg gratings as reflectors, and for onedirectional ring cavity without spectrally selective elements. It is shown that in both configurations the spectral width of sub-pulses, forming a Q-switch pulse, depends on the sub-pulse number, the spectrum of the most powerful sub-pulse is much broader than those of the rest, less powerful ones. In the case of the ring laser, the optical spectra of sub-pulses shift to the Stokes side while increasing a sub-pulse’s number. Possible reasons for such laser spectral dynamics will be discussed. We also report properties of the intensity noise of actively Q-switched erbium-doped fiber lasers implemented in these two configurations. We demonstrate that the types of photon noise statistics of Q-switched pulses in these two lasers are dramatically different (Poissonian or Bose-Einstein), revealing a crucial role of the cavity’s spectral selectivity. To determine the type of experimental statistics in terms of photon noise distribution, a detailed modeling is performed. Finally, the noisy Qswitched pulses are employed as a pump for generating broadband supercontinuum in telecom fiber, which affects their noise statistics."
dc.formatapplication/pdf
dc.languageeng
dc.relationcitation:Minguela Gallardo, (2017). "Spectral and temporal dynamics in active Q-switched Erbium-doped Fiber lasers". Tesis de Doctorado en Ciencias (Óptica). Centro de Investigaciones en Óptica, A.C. León, Guanajuato. 88 pp.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/AUTOR/ERBIUM-DOPED FIBER LASER, ACTIVE Q-SWITCHING, TEMPORAL DYNAMICS, SPECTRAL DYNAMICS, LASER NOISE, PHOTON STATISTICS, NONLINEAR EFFECTS, SUPERCONTINUUM GENERATION
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/2209
dc.titleSPECTRAL AND TEMPORAL DYNAMICS IN ACTIVELY Q-SWITCHED ERBIUM-DOPED FIBER LASERS
dc.typeinfo:eu-repo/semantics/doctoralThesis
dc.coverageLeón, Guanajuato
dc.audiencegeneralPublic


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