OPTICAL ELEMENT OF STABILIZER OF FOCUS OF RADIATION IN OPTICAL FIBER Russian patent published in 2018 - IPC G02B7/28 

FIELD: optics.

SUBSTANCE: invention relates to optical elements intended to allow the input of focused radiation into an optical fiber. Optical element of the stabilizer of the focusing of radiation into an optical fiber is a single sample of a bulk optical material. Optical element contains a central optical waveguide and detecting optical waveguides. Shells of optical waveguides are microstructures with a refractive index that is lower in relation to the optical material. Shells of optical waveguides are formed by ultrashort laser pulses in the bulk of a sample of a solid-state optical material. Inputs of detecting waveguides are located around and close to the input of the central waveguide. Outputs of the detecting waveguides are spaced relative to the output of the central waveguide and relative to each other. Detecting optical waveguides are arranged so that there is no optical pumping between them and between them and the central optical waveguide, or pumping occurs an even number of times.

EFFECT: technical result achieved by the claimed invention is the creation of an optical element of a radiation focusing stabilizer into an optical fiber, which makes it possible to control the accuracy of introducing laser radiation into an optical fiber with a high resolution.

16 cl, 7 dwg