"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

EFFECT OF TEMPERATURE ANNEALING ON PERIODICALLY POLED RARE-EARTH DOPED LITHIUM NIOBATE CRYSTAL

V. Bermúdez1,* , D. Callejo1, E. Diéguez1

Affiliation

  1. Dpto. Física de Materiales, Universidad Autónoma de Madrid, 28049 Madrid, Spain

Abstract

Rare earth doped Periodic Poled Lithium Niobate crystals prepared by the off-centered Czochralski growth technique have been submitted to several annealing proceses either at T>Tc as T<Tc. It is shown that an annealing process at T>Tc eliminates the periodic domain structure in the surface but not in the bulk crystal, where the periodic structure is not damaged for a low cooling rate, while it is strongly damaged for a quenching process. When the annealing process is performed at temperatures very close to the Curie temperature but below, the periodic domain structures do not disappear even from the surface, but they are strongly damaged when temperature is cooled down following a quenching procedure. When temperature is reduced following a low cooling rate process the surface domain structure is not affected..

Keywords

Lithium niobate, Waveguide, Laser self-frequency doubling.

Submitted at: Nov. 28, 2002
Accepted at: March 12, 2003

Citation

V. Bermúdez, D. Callejo, E. Diéguez, EFFECT OF TEMPERATURE ANNEALING ON PERIODICALLY POLED RARE-EARTH DOPED LITHIUM NIOBATE CRYSTAL, Journal of Optoelectronics and Advanced Materials Vol. 5, Iss. 1, pp. 55-59 (2003)