New Polishing Technique Improves Finesse of Fabry Perot Etalons
Optical Surfaces Ltd. reports on the development of a new polishing technique that has been shown to reproducibly improve the spectral filtering capability (finesse) of Fabry Perot etalons.
Fabry Perot Etalons for ultra-high resolution interferometry (courtesy: Optical Surfaces Ltd.)
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For over two decades - Optical Surfaces has supplied precisely matched Fabry-Perot etalon pairs to Table Stable Ltd. (Mettmenstetten, Switzerland) for use as a key component in their ultra-high-resolution JRS Series interferometers.
Operating in a uniquely stable manufacturing environment, Optical Surfaces is able to produce the required 50-mm diameter fused silica Fabry Perot Etalons pairs with matching accuracies of better than lambda/200.