etalon

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English[edit]

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Wikipedia

Diagram of an etalon

Etymology[edit]

From French étalon (measuring gauge, standard).

Noun[edit]

etalon (plural etalons)

  1. An optical device containing parallel mirrors, used in laser design to delay light.
    • 2004, S. C. Gupta, Textbook On Optical Fiber Communication And Its Applications, page 153,
      It will be shown that the simple theory outlined in the preceding paragraph, which is applicable to single-plate etalons, can be used to predict the main features of the spectral curve of a multi element etalon.
    • 2006, Walter Koechner, Solid-State Laser Engineering, page 264,
      The laser output will be composed of longitudinal modes that fall inside the transmission band of the etalon, hence a narrowing of the laser line width is observed.
    • 2009, V. Rajendran, Engineering Physics, page 7.15,
      The next step of this experiment is to compare the etalon m1m2 (shortest length) with the etalon m3m4 (the next one). For this two etalons are arranged side by side as shown in Fig. 7.13a.

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Crimean Tatar[edit]

Etymology[edit]

French étalon.

Noun[edit]

etalon

  1. prototype, standard.

Declension[edit]

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