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1.
Materials (Basel) ; 14(14)2021 Jul 14.
Article in English | MEDLINE | ID: mdl-34300863

ABSTRACT

A cycle of works on manufacturing and studying laser and magnetooptical ceramics with a focus on their thermo-optical characteristics performed by the research team is analyzed. Original results that have not been published before such as measurements of the Verdet constant in the Zr:TAG, Re:MgAl2O4, and ZnAl2O4 ceramics are also presented.

2.
Opt Lett ; 41(10): 2374-7, 2016 May 15.
Article in English | MEDLINE | ID: mdl-27177006

ABSTRACT

Thermally induced depolarization of radiation introduced by a system of two optical elements separated by a quartz rotator has been analyzed. The conditions of full compensation of thermally induced depolarization for two nonidentical optical elements have been found. The model experiment has demonstrated that full compensation in two optical elements of different materials is possible without a quartz rotator between them.

3.
Opt Express ; 21(18): 21254-63, 2013 Sep 09.
Article in English | MEDLINE | ID: mdl-24103999

ABSTRACT

Thermally induced depolarization and thermal lens of three Konoshima Chemical Co. laser-ceramics samples Yb(3+):Lu(2)O(3)(C(Yb) ≈ 1.8 at.%), Yb(3+):Y(2)O(3)(C(Yb) ≈ 1.8 at.%), and Yb(3+):Sc(2)O(3) (C(Yb) ≈ 2.5 at.%) were measured in experiment at different pump power. The results allowed us to estimate the thermal conductivity of the investigated ceramic samples and compare their thermo-optical properties. The thermo-optical constants P and Q and its sign measured for these materials at the first time.

4.
Opt Express ; 21(19): 22338-52, 2013 Sep 23.
Article in English | MEDLINE | ID: mdl-24104124

ABSTRACT

Compensation of thermally induced depolarization in laser active elements at small birefringence without additional phase elements was proposed and observed experimentally. Requirements to the crystals were formulated. An order of magnitude reduction of depolarization degree was obtained experimentally. A further modification of the scheme was developed.

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