Examination of Temperature Influence on Wide-Angle Paratellurite Crystal Acousto-Optic Filters Operation
S.N. Mantsevicha,b, O.I. Korableva,c, Yu.K. Kalinnikov d, A.Yu. Ivanov a and A.V. Kiseleva,c
aSpace Research Institute (IKI), 84/32, Profsoyuznaya, 117997, Moscow, Russia
bFaculty of Physics, Moscow State University, GSP-2, Leninskiye Gory, 119992, Moscow, Russia
cMoscow Institute of Physics and Technology (MIPT), 9, Institutsky dr., 141700, Dolgoprudny, Moscow Region, Russia
dVNIIFTRI, 141570, Mendeleevo, Moscow region, Russia
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The effect of temperature on a wide-angle paratellurite acousto-optic tunable filter is analyzed on the example of two different acousto-optic tunable filter configurations. The acousto-optic tunable filter operation was between -50°C to +40°C; Also the survival of an acousto-optic tunable filter device at -130°C was demonstrated. The phase matching ultrasound frequency varies with temperature. We link this temperature shift to photoelastic characteristics of the TeO2. A generalization is made for all wide-angle acousto-optic tunable filters based on TeO2 crystal. In addition, the temperature influence on the acoustic walk off angle was examined.

DOI: 10.12693/APhysPolA.127.43
PACS numbers: 42.25.Fx