Multi-watt continuous-wave and passively Q-switched Tm:CaYAlO4 micro-lasers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00546016" target="_blank" >RIV/68378271:_____/20:00546016 - isvavai.cz</a>
Result on the web
<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11259/1125927/Multi-watt-continuous-wave-and-passively-Q-switched-Tm-CaYAlO4/10.1117/12.2545710.short?SSO=1" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11259/1125927/Multi-watt-continuous-wave-and-passively-Q-switched-Tm-CaYAlO4/10.1117/12.2545710.short?SSO=1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2545710" target="_blank" >10.1117/12.2545710</a>

Result language
angličtina
Original language name
Multi-watt continuous-wave and passively Q-switched Tm:CaYAlO4 micro-lasers
Original language description
Tetragonal calcium rare-earth aluminates, CaLnAlO4, combine a structural disorder with good thermo-mechanical properties. We report on efficient continuous-wave (CW) and passively Q-switched (PQS) ~2-μm laser operation of a 4 at.% Tm:CaYAlO4 crystal using a compact (6-mm-long) plane-parallel cavity. The pump source was a 791 nm fiber coupled AlGaAs laser diode. The CW output power reached 5.78 W at ~1970 nm with a slope efficiency of 43.6% and a linear laser polarization. Stable PQS operation was achieved using a single-walled carbon nanotube (SWCNT) based transmission-type saturable absorber. The PQS laser generated 2.15 W at ~1945 nm, a record-high average output power for this type of lasers. The best pulse characteristics (energy/duration) were 9.1 μJ /165 ns at a repetition rate of 235 kHz.n
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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