Temperature dependence of the absorption coefficient of V:YAG saturable absorber

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00386410" target="_blank" >RIV/68407700:21340/25:00386410 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.3072384" target="_blank" >https://doi.org/10.1117/12.3072384</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.3072384" target="_blank" >10.1117/12.3072384</a>

Result language
angličtina
Original language name
Temperature dependence of the absorption coefficient of V:YAG saturable absorber
Original language description
The V:YAG saturable absorber enables passive Q-switching in Nd-based lasers, particularly in the 1.0–1.4μm spectral range, making them valuable for applications in medicine and LIDAR systems. The absorption coefficient of V:YAG is a key parameter in Q-switching, affecting intracavity losses and pulse characteristics. However, its temperature dependence can influence laser performance. This study investigates the absorption coefficient of a disc-shaped V:YAG crystal (4mm thick, 10mm diameter) in the spectral region around 1.3μm at temperatures from 220 to 380K. Results show a decrease in absorption up to 1369nm, with the largest drop at 1281nm. Beyond this range, absorption increases with temperature, peaking at 1409nm. These findings enhance the understanding of V:YAG’s thermal behavior, aiding in the development of stable passively Q-switched lasers. The impact of temperature-induced V:YAG changes was analysed in microchip lasers operating at 1.34 and 1.44μm.
Czech name
—
Czech description
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Project
<a href="/en/project/EH23_020%2F0008525" target="_blank" >EH23_020/0008525: Innovative laser and scintillation materials for modern applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. SPIE 13698, Photonics, Devices, and Systems IX
ISBN
978-1-5106-9345-6
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
7
Pages from-to
—
Publisher name
The International Society for Optical Engineering (SPIE)
Place of publication
Bellingham WA
Event location
Prague
Event date
Jun 9, 2025
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001723559900005

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