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Updated: Jun 10, 2026
07:22
Fabrication of a Low-Cost, Fiber-Coupled, and Air-Spaced Fabry-Pérot Etalon
Published on: February 3, 2023
Abstract:
A small cryogenic Fabry-Perot étalon was fabricated for the far-infrared region. This design used freestanding metal meshes for the reflecting elements. Using a combination of gold-coated copper mesh on stainless steel, we reproduced the spacing to 1 part in 10(6) with repeated cooling. The properties and methods used for alignment and calibration are presented.
