Abstract
We present a new method for precise measurement of parallelism and relative flatness of a Fabry-Perot etalon. This method is based on the analysis of multiple-beam transmission interference fringe pattern. Two-dimensional defect information is obtained by using small apertures placed over the entire area of the etalon. Experimental results for precise testing of an etalon with repeatability better than #x03BB;/2300 to 3#x03C3; are presented.
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Itoh, Si., Yamazaki, Y., Katoh, K. et al. High Precision Testing Method for Fabry-Perot Etalon. OPT REV 8, 179–183 (2001). https://doi.org/10.1007/s10043-001-0179-1
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DOI: https://doi.org/10.1007/s10043-001-0179-1