Rotationally Tunable Two-Beam Interferometer with a Fixed Photosensitive Element. Part I. Interferometer Based on a Beam-Splitter Cube
V. D. Ugozhaev
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 1, Novosibirsk, 630090 Russia
Keywords: двухлучевой интерферометр, светоделительный кубик, неподвижные зеркала, неподвижный фоточувствительный элемент, перестройка угла схождения, голографическая дифракционная решётка, виброустойчивость, two-beam interferometer, beam-splitter cube, fixed mirrors, fixed photosensitive element, tuning of the convergence angle, holographic diffraction grating, vibration stability
Pages: 153-160
Abstract
A two-beam interferometer based on a beam-splitter cube with a fixed photosensitive element is proposed. The interferometer is designed for generating interference patterns with a tunable period. The only type of motion resulting in a change in the period is interferometer rotation with respect to the source of the light beam. The greatest width of the range of convergence angle tuning is close to 50°, and possible values of this angle lie in the interval from 10 to 180°. The interferometer arms have identical lengths owing to its symmetry. The absence of adjustment elements ensures high stability of the instrument with respect to vibrations.
DOI: http://dx.doi.org/10.3103/S8756699016020072
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