3 years ago

Calcium fluoride whispering gallery mode optical resonator with reduced thermal sensitivity

Anatoliy Savchenkov, Andrey Matsko
We demonstrate a crystalline CaF 2 resonator with thermal sensitivity of the optical modes approaching zero. The resonator is made by laminating a calcium fluoride layer forming an optical monolithic cavity with ceramic compensation layers. The ceramics is characterized with negative thermal expansion coefficient achievable in a certain temperature range. The thermally compensated resonator has a potential application for laser frequency stabilization.

Publisher URL: http://iopscience.iop.org/2040-8986/20/3/035801

DOI: 10.1088/2040-8986/aaa6f9

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