Fabry-Perot Interferometers | Photonics Buyers' Guide

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Fabry-Perot Interferometers A fabry-perot interferometer is a multiple-beam interferometer, usually consisting of two flat plates, with high reflective ability. The plates are set parallel to one another by spacers so that lightwaves may bounce back and forth between them several times. The requirements for constructive interference of reflected lightwaves of a given wavelength can be fulfilled only at particular angles, relative to the normal to the plates. Therefore, Fabry-Perot interferometers can be used as spectrometers with high resolution. Used as a laser resonator, the Fabry-Perot reinforces only light of specific frequencies traveling perpendicular to the mirror surfaces, and its successive reflections and amplifications form the oscillating mode.

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TecOptics, Inc. - Merrick, NYManufacturer of air-spaced and solid etalons, ultrahigh damage threshold laser optics and interferometer optics. Coatings from UV to near-IR. Optomechanical systems.
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TOPTICA Photonics, Inc. - Victor, NYTOPTICA is a world leader in diode laser and ultrafast technology for industrial and scientific markets. We offer the widest range of single-mode tunable light in the 190 to 2900 nm and 0.5 to 2.5 THz spectral region with various accessories to measure, characterize, stabilize and analyze light....
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TERMS
interferometer An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference phenomena based on the wave characteristics of light....
Fabry-Perot interferometer A multiple-beam interferometer, usually consisting of two flat plates, with high reflective ability. The plates are set parallel to one another by spacers so that lightwaves may bounce back and forth between them several times. The requirements for...

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