Thulium-doped silica fibers with enhanced 3H4 level lifetime for fiber lasers and amplifiers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F12%3A00396889" target="_blank" >RIV/67985882:_____/12:00396889 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICP.2012.6379827" target="_blank" >http://dx.doi.org/10.1109/ICP.2012.6379827</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICP.2012.6379827" target="_blank" >10.1109/ICP.2012.6379827</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thulium-doped silica fibers with enhanced 3H4 level lifetime for fiber lasers and amplifiers

Popis výsledku v původním jazyce

Thulium-doped fibers are renowned for their applications in high power fiber lasers at around 2 ?m. 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 ?m and 1.5 ?m, respectively. The lower quantum conversion efficiency increases the 2 ?m laser threshold but has almost no effect on the laser slope efficiency. Indeed, kW-class thulium-dopedfiber 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 deve

Název v anglickém jazyce

Thulium-doped silica fibers with enhanced 3H4 level lifetime for fiber lasers and amplifiers

Popis výsledku anglicky

Thulium-doped fibers are renowned for their applications in high power fiber lasers at around 2 ?m. 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 ?m and 1.5 ?m, respectively. The lower quantum conversion efficiency increases the 2 ?m laser threshold but has almost no effect on the laser slope efficiency. Indeed, kW-class thulium-dopedfiber 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 deve

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

3RD INTERNATIONAL CONFERENCE ON PHOTONICS 2012 (ICP 2012)

ISBN

978-1-4673-1463-3

ISSN

—

e-ISSN

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Počet stran výsledku

5

Strana od-do

61-65

Název nakladatele

IEEE

Místo vydání

NEW YORK

Místo konání akce

Penang

Datum konání akce

1. 10. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000320658500016