Interferometric technique for the concurrent determination of thermo-optic and thermal expansion coefficients

John M. Jewell; Charles G. Askins; Ishwar D. Aggarwal

doi:10.1117/12.27511

1 June 1991 Interferometric technique for the concurrent determination of thermo-optic and thermal expansion coefficients

John M. Jewell, Charles G. Askins, Ishwar D. Aggarwal

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Proceedings Volume 1441, Laser-Induced Damage in Optical Materials: 1990; (1991) https://doi.org/10.1117/12.27511
Event: Laser-Induced Damage in Optical Materials: 1990, 1990, Boulder, CO, United States

Abstract

An interferometric technique is described that uses a Fabry-Perot type configuration to measure the coefficient of thermal expansion (CTE) and the thermo-optic coefficient (dn/dT) of transparent materials concurrently. A number of measurements of the CFE and dn/dT are made for both oxide and fluoride based glasses. These measurements show that the technique is accurate, reproducible, and is very effective in determining the temperature dependence of both the thermo-optic and thermal expansion coefficients.

Citation Download Citation

John M. Jewell, Charles G. Askins, and Ishwar D. Aggarwal "Interferometric technique for the concurrent determination of thermo-optic and thermal expansion coefficients", Proc. SPIE 1441, Laser-Induced Damage in Optical Materials: 1990, (1 June 1991); https://doi.org/10.1117/12.27511

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