Microchip Yb:CaLnAlO4 lasers with up to 91% slope efficiency

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00481248" target="_blank" >RIV/68378271:_____/17:00481248 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/OL.42.002431" target="_blank" >http://dx.doi.org/10.1364/OL.42.002431</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OL.42.002431" target="_blank" >10.1364/OL.42.002431</a>

Result language
angličtina
Original language name
Microchip Yb:CaLnAlO4 lasers with up to 91% slope efficiency
Original language description
Multi-watt continuous-wave (CW) operation of tetragonal rare-earth calcium aluminate Yb:CaLnAlO(4) (Ln = Gd,Y))crystals in plano-plano microchip lasers was demonstrated with an almost quantum-defect-limited slope efficiency. Pumped at 978 nm by an InGaAs laser diode, a 3.4 mm long 8 at. % Yb:CaGdAlO4 laser generated 7.79 W at 1057 1065 nm with a slope efficiency of n = 84% (with respect to the absorbed pump power). An even higher n = 91% was achieved with a 2.5 mm long 3 at. % Yb: CaYAlO4 laser, from which 5.06 W were extracted at 1048 1056 nm. Both lasers produced linearly polarized output (sigma- polarization) with an almost circular diffraction-limited beam (M-x(2),(y) < 1.1).
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)