High-precision FoM measurement setup for Ti:sapphire crystals
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00573332" target="_blank" >RIV/61389021:_____/23:00573332 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/46747885:24220/23:00010876
Výsledek na webu
<a href="https://opg.optica.org/ao/abstract.cfm?uri=ao-62-5-1345" target="_blank" >https://opg.optica.org/ao/abstract.cfm?uri=ao-62-5-1345</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.479254" target="_blank" >10.1364/AO.479254</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
High-precision FoM measurement setup for Ti:sapphire crystals
Popis výsledku v původním jazyce
The figure of merit (FoM) of Ti:sapphire (Ti:Sa) crystals is a generally used means to evaluate the quality of the crystals. Despite the importance of Ti:Sa, the question of FoM measurement precision stayed out of focus, while the commercially available spectrometers provide unsatisfactory 3σ precision reaching ±60%. In this paper, we present a setup for a single-pass high-precision transmission measurement for three different wavelengths (532, 780, and 1560 nm) based on Nd:YAG and Er:YAG lasers. A synchronous detection via a double integrated sphere enabled us to achieve the transmission uncertainty of 0,01–0,03%. With the presented setup, we show that it is possible to determine the FoM values with 3σ precision of ±7, 5 %. Owing to the high FoM precision, we were able to trace spatial inhomogeneities of an unannealed Ti:Sa crystal produced by a commercial manufacturer Crytur. Our measurements demonstrate that the FoM values can be significantly affected by the crystal inhomogeneities and angular mismatch between the c axis of the Ti:Sa and polarization orientation.
Název v anglickém jazyce
High-precision FoM measurement setup for Ti:sapphire crystals
Popis výsledku anglicky
The figure of merit (FoM) of Ti:sapphire (Ti:Sa) crystals is a generally used means to evaluate the quality of the crystals. Despite the importance of Ti:Sa, the question of FoM measurement precision stayed out of focus, while the commercially available spectrometers provide unsatisfactory 3σ precision reaching ±60%. In this paper, we present a setup for a single-pass high-precision transmission measurement for three different wavelengths (532, 780, and 1560 nm) based on Nd:YAG and Er:YAG lasers. A synchronous detection via a double integrated sphere enabled us to achieve the transmission uncertainty of 0,01–0,03%. With the presented setup, we show that it is possible to determine the FoM values with 3σ precision of ±7, 5 %. Owing to the high FoM precision, we were able to trace spatial inhomogeneities of an unannealed Ti:Sa crystal produced by a commercial manufacturer Crytur. Our measurements demonstrate that the FoM values can be significantly affected by the crystal inhomogeneities and angular mismatch between the c axis of the Ti:Sa and polarization orientation.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20303 - Thermodynamics
Návaznosti výsledku
Projekt
<a href="/cs/project/EF16_026%2F0008390" target="_blank" >EF16_026/0008390: Partnerství pro excelenci v superpřesné optice</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Optics
ISSN
1559-128X
e-ISSN
2155-3165
Svazek periodika
62
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
6
Strana od-do
1345-1350
Kód UT WoS článku
000942356700003
EID výsledku v databázi Scopus
2-s2.0-85147849041