Spatially synchronous fringe detection: a method to facilitate the alignment of an echelle grating mosaic by separating the compensative angular errors.
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DOI: 10.1364/ao.519106
Abstract: Alignment of mosaic gratings is traditionally supported by two interferometric verifications: on the zero order to verify the grating surfaces and on the blaze to verify the groove direction. In the case of low frequency… read more here.
Keywords: method; synchronous fringe; alignment; spatially synchronous ... See more keywords