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Fabry-Perot temperature dependence and surface-mounted optical cavities

Published

Author(s)

Richard W. Fox

Abstract

Factors that contribute to the resonance temperature dependence of low-expansion optical cavities are discussed, including deformation at the cavity ends due to different coefficients of thermal expansion (CTE) of the spacer, optically-contacted mirror substrate and coating. A model of temperature dependence is presented that incorporates finite-element-analysis of the cavity ends. Measurements of frequency versus temperature of a cavity mode are used along with the model to measure a spacer s CTE profile. The measured profile correlates very well with a separate experiment utilizing a temporary surface-mounted Fabry-Perot cavity fabricated on the outside of the spacer with hydroxy-catalysis bonding. Such temporary cavities may be useful for accurately measuring the CTE of potential spacer -glass pieces, enabling cavity designs with near zero temperature dependence at specified temperatures.
Proceedings Title
Proc. SPIE Conference
Conference Dates
June 2-4, 2008
Conference Location
Montreal, CA
Conference Title
SPIE Proceedings of Photonics North 2008

Keywords

Fabry-Perot, resonator, hydroxy-catalysis bonding

Citation

Fox, R. (2008), Fabry-Perot temperature dependence and surface-mounted optical cavities, Proc. SPIE Conference , Montreal, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=842496 (Accessed April 19, 2024)
Created June 2, 2008, Updated February 17, 2017