Definition of finesse

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COMSOL Inc. - Find Your Best Idea LB12/24

Photonics Dictionary

finesse: For a Fabry-Perot interferometer or etalon, a value for the transmission bandwidth which can be calculated as the ratio of the free spectral range to the full width half maximum of the transmission peaks. For an etalon, a high finesse is dependent on high reflectivity. Defects in the reflective surface will result in a lower finesse.

Lambda Research Optics, Inc. - Custom Optics

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