APPARATUS FOR MODULATING MONOCHROMATIC OPTICAL RADIATION Russian patent published in 2014 - IPC G02F1/00 G02B26/00 

FIELD: physics, optics.

SUBSTANCE: invention relates to optical engineering. The apparatus for modulating monochromatic optical radiation comprises an optically transparent medium in which are mounted a splitter for splitting monochromatic optical radiation into a first and a second propagation channel, a reflecting element in the second channel, a coherent summation portion for forming modulated monochromatic optical radiation. The splitter used for splitting monochromatic optical radiation into a first channel and a second channel is a splitting cube consisting of two identical triangular prisms joined by their large faces. The first channel is equipped with its own reflecting element. Each reflecting element is deposited on the corresponding face of the splitting cube on the path of the monochromatic optical radiation in the first and second channels. The splitting cube is mounted such that it can move back and forth outside the interface plane of its prisms, and the angle α between the velocity vector of the back and forth movement and the interface plane of the prisms of the splitting cube is selected from the relationship , where f_m is the required modulation frequency of the monochromatic optical radiation, λ₀ is the wavelength of monochromatic optical radiation at the input of the splitting cube, υ is the velocity of the splitting cube.

EFFECT: resistance to vibrations and pushing, capacity to operate in all spatial orientations.

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