A GAUGE FOR MEASUREMENTS OF THERMAL COEFFICIENT OF THE OPTICAL PATH IN LASER MATERIALS
Abstract
A gauge for measurements of thermal coefficient of the optical path, W, is developed. The measurements are based on the laser beam deviation method for medium with linear thermal gradient. The gauging is performed for spectral range of 0,4–1,1 μm in linearly polarized light with precision of 0,3×10-6 K-1. On the basis of measured W value, thermo-optic coefficient, dn/dT, can be determined.
About the Authors
P. A. Loiko
Белорусский национальный технический университет
Belarus
Belarus
A. M. Malyarevich
Белорусский национальный технический университет
Belarus
Belarus
K. V. Yumashev
Белорусский национальный технический университет
Belarus
Belarus
References
1. Chenais, S. On thermal effects in solid-state lasers: The case of ytterbium-doped materials / S. Chenais & others // Progress in Quant. Electr. – 2006. – Vol. 30. – P. 89–153.
2. Koechner, W. Solid-State Laser Engineering, 6th/ W. Koechner // Springer. – 2006. – Chap. 7.
3. Biswal, S. Thermo-optical parameters measured in ytterbium-doped potassium gadolinium tungstate / S. Biswal, S.P. O’Connor, S.R. Bowman // Appl. Opt. – Vol. 44. – P. 3093–3097.
4. Vatnik, S.M. Thermo-optic coefficients of monoclinic KLu(WO4)2 / S. Vatnik & others // Appl. Phys. B. – 2009. – Vol. 95. – P. 653–656.
5. Лойко, П.А. Измерение температурного коэффициента показателя преломления методом отклонения лазерного пучка в среде с линейным градиентом температуры / П.А. Лойко и др. // ПМИ. – 2010. – № 1. – С. 70–77.
6. Timoshenko, S.P. Theory of Elasticity, 3nd ed. / S.P. Timoshenko, J.N. Goodier / McGraw-Hill. –1987. – Chap. 13.
Review
For citations:
Loiko P.A., Malyarevich A.M., Yumashev K.V. A GAUGE FOR MEASUREMENTS OF THERMAL COEFFICIENT OF THE OPTICAL PATH IN LASER MATERIALS. Devices and Methods of Measurements. 2013;(2):17-21. (In Russ.)
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