Acousto-optically Q-switched Er:YAP laser emitting at 2.8 µm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00368739" target="_blank" >RIV/68407700:21340/23:00368739 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.2665614" target="_blank" >https://doi.org/10.1117/12.2665614</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2665614" target="_blank" >10.1117/12.2665614</a>

Result language
angličtina
Original language name
Acousto-optically Q-switched Er:YAP laser emitting at 2.8 µm
Original language description
The free-running and acousto-optically Q-switched laser properties of Er:YAP crystal, which is appropriate for generation at 2.8 µm, are presented. The sample of Er:YAP (concentration 5 at.% of Er3+, thickness 9 mm) had plan-parallel polished faces without antireflection coatings. The excitation of Er:YAP crystal was carried out by a laser diode emitting at 973 nm and working in a pulsed regime (pulse duration 5 ms, repetition rate 10 Hz). The laser resonator was hemispherical, 150 mm in length, with a flat pumping mirror (HR @ 2.8 µm) and a spherical output coupler (r = 150 mm, R = 95 % @ 2.5 - 2.9 µm). In the free-running laser regime, the maximum output power of 156 mW and slope efficiency of 17 % with respect to absorbed pumped power were obtained. To obtain a Q-switching laser operation, the acousto-optic germanium element was inserted between the Er:YAP crystal and the output coupler. The shortest pulse duration of 36.2 ns with a repetition rate of 10 Hz and maximum pulse energy of 0.43 µJ were obtained. The emitted laser wavelength of 2.8 µm can be used as a pump source at room-temperature for Fe:ZnSe or in mid-infrared spectroscopy.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. SPIE 12577, High-power, High-energy Lasers and Ultrafast Optical Technologies
ISBN
978-1-5106-6274-2
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
5
Pages from-to
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Publisher name
SPIE
Place of publication
Bellingham (stát Washington)
Event location
Praha
Event date
Apr 24, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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