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Optical Components and Materials IV
A novel type of filters based on a combination of a Fabry-Perot etalon and a volume Bragg grating is demonstrated. The proposed solid-spaced Fabry-Perot etalon consists of a high quality fused silica window with both faces having identical dielectric mirrors coatings. The transmission of this Fabry-Perot etalon is a discrete channel spectrum consisting of narrow lines (typically a few tens of picometers) which are separated by gaps with constant width defined as the free spectral rangedoi:10.1117/12.701942 fatcat:3zykqzocfraappe23boabg3chm