An Interferometric Technique for the Concurrent Determination of Thermo-optic and Thermal Expansion Coefficients

JM Jewell; C Askins; ID Aggarwal

doi:10.1520/STP23611S

SYMPOSIA PAPER Published: 01 January 1991

STP23611S

An Interferometric Technique for the Concurrent Determination of Thermo-optic and Thermal Expansion Coefficients

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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 CTE 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.

Author Information

Jewell, JM

Askins, C

Aggarwal, ID

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Details

Developed by Committee: F01

Pages: 38–44

DOI: 10.1520/STP23611S

ISBN-EB: 978-0-8031-5179-6

ISBN-13: 978-0-8194-0532-6

An Interferometric Technique for the Concurrent Determination of Thermo-optic and Thermal Expansion Coefficients

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