5 February 1993 Study of Fabry-Perot interferometer for ultraprecise measurement of thermal coefficients of very low expansion
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Abstract
The Fabry-Perot interferometer for ultraprecise measurement of the thermal coefficient of very low expansion, including its working principle and the construction of its practical system, is described in detail in this paper. The measurement principle is given by the frequency filter character of F-P resonator, and the acoustic frequency shifter is used to modulate the frequency of the laser beam. This F-P interferometer system can be used to measure the thermal coefficients of very low expansion as low as 10-9 with high accuracy.
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Yanbiao Liao, Yanbiao Liao, Huafeng Zhao, Huafeng Zhao, Bing Pang Tang, Bing Pang Tang, Shurong Lai, Shurong Lai, } "Study of Fabry-Perot interferometer for ultraprecise measurement of thermal coefficients of very low expansion", Proc. SPIE 1755, Interferometry: Techniques and Analysis, (5 February 1993); doi: 10.1117/12.140759; https://doi.org/10.1117/12.140759
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