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Raman gain of selected tellurite glasses for IR fibre lasers calculated from spontaneous scattering spectra

hal.structure.identifierAdvanced Materials Research Laboratory, School of Material Science and Engineering
dc.contributor.authorO'DONNELL, M. D.
hal.structure.identifierAdvanced Materials Research Laboratory, School of Material Science and Engineering
dc.contributor.authorRICHARDSON, Kathleen
hal.structure.identifierAdvanced Materials Research Laboratory, School of Material Science and Engineering
dc.contributor.authorSTOLEN, R.
hal.structure.identifierThe College of Optics and Photonics [Orlando] [CREOL]
dc.contributor.authorRIVERO, Clara
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCOUZI, Michel
hal.structure.identifierNovel Photonic Glasses Research Group, Wolfson Center for Materials Research, School of Mechanical, Manufacturing and Materials Engineering
dc.contributor.authorFURNISS, D.
hal.structure.identifierNovel Photonic Glasses Research Group, Wolfson Center for Materials Research, School of Mechanical, Manufacturing and Materials Engineering
dc.contributor.authorSEDDON, A. B.
dc.date.issued2008
dc.identifier.issn0925-3467
dc.description.abstractEnIn this paper, we present the spontaneous Raman scattering spectra and calculated Raman gain spectra of two TZN (TeO2-ZnO-Na2O) glasses and three tungsten tellurite glasses. Addition of lead(II) oxide to the TZN glass increased the amount of lower coordination [TeO3]/[TeO3+1] units (765 cm-1) in the glass, and decreased the higher coordination [TeO4] units (665 cm-1) and Te-O-Te chains (440 cm-1). Addition of WO3 to the tungsten-tellurite glasses also resulted in the same trend as with PbO, and an additional band at around 925 cm-1 was seen to increase in intensity due to [WO4+2] units. Finally, a band at around 370 cm-1 was seen in the bismuth-doped tungsten tellurite glass, due to Te-O-Bi linkages. The calculated Raman gain of these tellurite glasses were found to be 20-30 times that of fused-silica (0.89 × 10-13 m W-1). The calculated Raman gain of the PbO-doped TZN glass also showed good agreement with direct gain measurements previously made at 1064 nm. The minimum laser powers required to stimulate Raman amplification were calculated for one TZN glass and one tungsten-tellurite glass for optical fibre with a 10 μm core. The power densities required were of the order of MW cm-2 for fibre with 2-3 dB m-1 loss at 1550 nm and much lower than the surface optical damage thresholds of the glasses which are of the order of GW cm-2.
dc.language.isoen
dc.publisherElsevier
dc.subject.enGlass
dc.subject.enInfrared
dc.subject.enLaser
dc.subject.enRaman gain
dc.subject.enTellurite
dc.title.enRaman gain of selected tellurite glasses for IR fibre lasers calculated from spontaneous scattering spectra
dc.typeArticle de revue
dc.identifier.doi10.1016/j.optmat.2007.05.010
dc.subject.halChimie/Matériaux
bordeaux.journalOptical Materials
bordeaux.page946-951
bordeaux.volume30
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-00259345
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00259345v1
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