Upconversion and relaxation of high lying states in rare-earth-doped ZBLAN bulk and fibers
Identifieur interne : 003368 ( Main/Exploration ); précédent : 003367; suivant : 003369Upconversion and relaxation of high lying states in rare-earth-doped ZBLAN bulk and fibers
Auteurs : B. Jacquier [France] ; A. Remillieux [France] ; M. F. Joubert [France] ; P. Christensen [France] ; H. Poignant [France]Source :
- Journal of Non-Crystalline Solids [ 0022-3093 ] ; 1993.
English descriptors
- KwdEn :
- Blue fluorescence, Decay curve, Excitation, Excitation spectra, Excitation spectrum, Fiber configuration, Infrared emission, Jacquier, Laser, Laser excitation, Long decay, Photon, Photon energy, Praseodymium, Rare earth distribution, Room temperature, State absorption, Time microseconds, Upconversion, Upconversion lasers, Ytterbium ions, Zblan bulk.
- Teeft :
- Blue fluorescence, Decay curve, Excitation, Excitation spectra, Excitation spectrum, Fiber configuration, Infrared emission, Jacquier, Laser, Laser excitation, Long decay, Photon, Photon energy, Praseodymium, Rare earth distribution, Room temperature, State absorption, Time microseconds, Upconversion, Upconversion lasers, Ytterbium ions, Zblan bulk.
Abstract
Abstract: Upconversion pumping of fluorescence of Nd3+-, Tm3+- and Pr3+-doped and Pr3+-Yb3+ co-doped samples of ZBLAN in bulk and fiber form was measured using cw and pulsed laser excitation. It is shown that single-laser-beam excited fluorescence is very sensitive to the resonance between the photon energy and an excited state transition frequency. Such resonance in the ESA mechanism can be associated with avalanche absorption in crystals and suggests the possibility of observing similar effects in these glasses, but it could be two-step absorption given the broad bands of glasses. It is concluded that the fiber configuration, as compared with bulk, is the best suited for achieving efficient upconversion lasers.
Url:
DOI: 10.1016/0022-3093(93)90708-6
Affiliations:
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Poignant</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>CNET Lannion, B. UCM Fog., BP 40, Lannion</wicri:regionArea><placeName><region type="region">Région Bretagne</region><region type="old region">Région Bretagne</region><settlement type="city">Lannion</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Non-Crystalline Solids</title><title level="j" type="abbrev">NOC</title><idno type="ISSN">0022-3093</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1993">1993</date><biblScope unit="volume">161</biblScope><biblScope unit="supplement">C</biblScope><biblScope unit="page" from="241">241</biblScope><biblScope unit="page" to="244">244</biblScope></imprint><idno type="ISSN">0022-3093</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-3093</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Blue fluorescence</term><term>Decay curve</term><term>Excitation</term><term>Excitation spectra</term><term>Excitation spectrum</term><term>Fiber configuration</term><term>Infrared emission</term><term>Jacquier</term><term>Laser</term><term>Laser excitation</term><term>Long decay</term><term>Photon</term><term>Photon energy</term><term>Praseodymium</term><term>Rare earth distribution</term><term>Room temperature</term><term>State absorption</term><term>Time microseconds</term><term>Upconversion</term><term>Upconversion lasers</term><term>Ytterbium ions</term><term>Zblan bulk</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Blue fluorescence</term><term>Decay curve</term><term>Excitation</term><term>Excitation spectra</term><term>Excitation spectrum</term><term>Fiber configuration</term><term>Infrared emission</term><term>Jacquier</term><term>Laser</term><term>Laser excitation</term><term>Long decay</term><term>Photon</term><term>Photon energy</term><term>Praseodymium</term><term>Rare earth distribution</term><term>Room temperature</term><term>State absorption</term><term>Time microseconds</term><term>Upconversion</term><term>Upconversion lasers</term><term>Ytterbium ions</term><term>Zblan bulk</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Upconversion pumping of fluorescence of Nd3+-, Tm3+- and Pr3+-doped and Pr3+-Yb3+ co-doped samples of ZBLAN in bulk and fiber form was measured using cw and pulsed laser excitation. It is shown that single-laser-beam excited fluorescence is very sensitive to the resonance between the photon energy and an excited state transition frequency. Such resonance in the ESA mechanism can be associated with avalanche absorption in crystals and suggests the possibility of observing similar effects in these glasses, but it could be two-step absorption given the broad bands of glasses. It is concluded that the fiber configuration, as compared with bulk, is the best suited for achieving efficient upconversion lasers.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Rhône-Alpes</li><li>Région Bretagne</li></region><settlement><li>Lannion</li><li>Villeurbanne</li></settlement></list><tree><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Jacquier, B" sort="Jacquier, B" uniqKey="Jacquier B" first="B." last="Jacquier">B. 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