ファブリーペロエタロンMeanings1nounFabry-Perot etalon; Fabry-Perot interferometerphysicsTechnical term in physics. Refers to an optical cavity used for precise wavelength measurement or filtering.ファブリーペロエタロンはレーザー共きょう振しん器きにも使つかわれる。Fabry-Perot etalons are also used in laser resonators.