Share this entry
Fabry–Pérot interferometer Line breaks: Fabry–Pérot inter|fer|om¦eter
Pronunciation: /ˌfabrɪˈpɛrəʊ/

Definition of Fabry–Pérot interferometer in English:


An interferometer that incorporates an etalon, used chiefly in astronomy.
Example sentences
  • In optics, a Fabry-Pérot interferometer or etalon is typically made of a transparent plate with two reflecting surfaces, or two parallel highly reflecting mirrors.
  • The Fabry-Perot interferometer also represents a tool essential to studying lasers.


Early 20th century: named after Charles Fabry (1867–1945) and Alfred Pérot (1863–1925), French physicists.

Definition of Fabry–Pérot interferometer in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove ads and access premium resources