Piezo-optic coefficients of MgO-doped LiNbO3 crystals

Autor(en)

Bogdan G Mytsyk, Anatoliy S Andrushchak, Nataliya M Demyanyshyn, Yaroslav P Kost', Andri V Kityk, Pietro Mandracci, Wilfried Schranz

Abstrakt

We describe an interferometric technique suitable for determination of piezo-optic coefficients (POCs) in crystals. The method considers real nonparallelism of measured samples, thereby improving the measuring precision of POCs significantly. Corresponding equations are derived for the interferometric half-wave stress method. Using this technique we have determined a complete set of POCs of pure and MgO -doped LiNbO3 crystals. The reliability of the data has been confirmed by comparing the effective POCs expressed through the combinations of measured POCs and the effective POCs determined independently using highly precise optical birefringence measurements. Pure and MgO -doped LiNbO3 crystals reveal nearly the same magnitudes of POCs. However, LiNbO3 :MgO exhibits about 4 times higher resistance with respect to powerful light radiation, making it more suitable for application in acousto-optic devices that deal with superpowerful laser radiation.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

University of Cambridge, Czestochowa University of Technology (CUT), Lviv Polytechnic National University, Karpenko Physico-Mechanical Institute, Politecnico di Torino

Journal

Applied Optics

Band

48

Seiten

1904-1911

Anzahl der Seiten

8

ISSN

0003-6935

DOI

https://doi.org/10.1364/AO.48.001904

Publikationsdatum

2009

Peer-reviewed

Ja

ÖFOS 2012

103021 Optik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/1201e764-edbd-4308-a7be-c2871cfecb68