Thulium-doped silica fibers with enhanced 3H4 level lifetime for fiber lasers and amplifiers
Identifieur interne : 000675 ( Main/Exploration ); précédent : 000674; suivant : 000676Thulium-doped silica fibers with enhanced 3H4 level lifetime for fiber lasers and amplifiers
Auteurs : Pavel Peterka [République tchèque] ; Ivan Kašík [République tchèque] ; Pavel Honzatko [République tchèque] ; Wilfried Blanc [France] ; Bernard Dussardier [France]Source :
Abstract
Thulium-doped fibers are renowned for their applications in high power fiber lasers at around 2 µm. It is despite the low quantum conversion efficiency of 3F4 level in thulium doped silica fibers, which is about 10% compared to ~100% quantum conversion efficiency of the ytterbium- and erbium-doped fibers, at around 1 µm and 1.5 µm, respectively. The lower quantum conversion efficiency increases the 2 µm laser threshold but has almost no effect on the laser slope efficiency. Indeed, kW-class thulium-doped fiber lasers have been demonstrated recently. Quantum conversion efficiency of the 3H4 level in non-modified silica fibers is much lower than that of 3F4 level, only about 2% and therefore most of the applications of laser transitions originating from 3H4 level are hindered by the lack of reliable low-phonon fiber host. We review of our contributions towards the comprehension and improvement of the spectroscopic properties of thulium ions doped into silica. We show potential of the developed thuliumdoped fibers with enhanced 3H4 level lifetime for applications in fiber lasers around 810 nm and in fiber amplifiers for communication S-band (1460-1530 nm).
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type="acronym">IPE</orgName><desc><address><addrLine>Academy of Sciences of the Czech Republic, Chaberská 57, 18251 Prague, Czech Republic</addrLine><country key="CZ"></country></address><ref type="url">http://www.ufe.cz/</ref></desc><listRelation><relation active="#struct-300132" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-300132" type="direct"><org type="institution" xml:id="struct-300132" status="VALID"><orgName>Czech Academy of Sciences</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>République tchèque</country></affiliation></author><author><name sortKey="Blanc, Wilfried" sort="Blanc, Wilfried" uniqKey="Blanc W" first="Wilfried" last="Blanc">Wilfried Blanc</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-199959" status="VALID"><orgName>Laboratoire de physique de la matière condensée</orgName><orgName type="acronym">LPMC</orgName><desc><address><addrLine>Parc Valrose 06108 NICE CEDEX 2</addrLine><country key="FR"></country></address><ref type="url">http://lpmc.unice.fr/</ref></desc><listRelation><relation name="UMR7336" active="#struct-441569" type="direct"></relation><relation active="#struct-117617" type="direct"></relation></listRelation><tutelles><tutelle name="UMR7336" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="IdRef">02636817X</idno><idno type="ISNI">0000000122597504</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-117617" type="direct"><org type="institution" xml:id="struct-117617" status="VALID"><orgName>Université Nice Sophia Antipolis</orgName><orgName 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type="url">http://unice.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Nice</settlement><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region></placeName><orgName type="university">Université Nice Sophia Antipolis</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Thulium-doped fibers are renowned for their applications in high power fiber lasers at around 2 µm. It is despite the low quantum conversion efficiency of 3F4 level in thulium doped silica fibers, which is about 10% compared to ~100% quantum conversion efficiency of the ytterbium- and erbium-doped fibers, at around 1 µm and 1.5 µm, respectively. The lower quantum conversion efficiency increases the 2 µm laser threshold but has almost no effect on the laser slope efficiency. Indeed, kW-class thulium-doped fiber lasers have been demonstrated recently. Quantum conversion efficiency of the 3H4 level in non-modified silica fibers is much lower than that of 3F4 level, only about 2% and therefore most of the applications of laser transitions originating from 3H4 level are hindered by the lack of reliable low-phonon fiber host. We review of our contributions towards the comprehension and improvement of the spectroscopic properties of thulium ions doped into silica. We show potential of the developed thuliumdoped fibers with enhanced 3H4 level lifetime for applications in fiber lasers around 810 nm and in fiber amplifiers for communication S-band (1460-1530 nm).</div></front></TEI><affiliations><list><country><li>France</li><li>République tchèque</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Nice</li></settlement><orgName><li>Université Nice Sophia Antipolis</li></orgName></list><tree><country name="République tchèque"><noRegion><name sortKey="Peterka, Pavel" sort="Peterka, Pavel" uniqKey="Peterka P" first="Pavel" last="Peterka">Pavel Peterka</name></noRegion><name sortKey="Honzatko, Pavel" sort="Honzatko, Pavel" uniqKey="Honzatko P" first="Pavel" last="Honzatko">Pavel Honzatko</name><name sortKey="Kasik, Ivan" sort="Kasik, Ivan" uniqKey="Kasik I" first="Ivan" last="Kašík">Ivan Kašík</name></country><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Blanc, Wilfried" sort="Blanc, Wilfried" uniqKey="Blanc W" first="Wilfried" last="Blanc">Wilfried Blanc</name></region><name sortKey="Dussardier, Bernard" sort="Dussardier, Bernard" uniqKey="Dussardier B" first="Bernard" last="Dussardier">Bernard Dussardier</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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