FIBER LASER FOR PUMPING OF ACTIVE ELEMENTS Russian patent published in 2020 - IPC H01S3/67 

FIELD: lasers.

SUBSTANCE: invention relates to laser equipment. Fiber laser for pumping active elements has a power supply and an emitter which includes an optically connected active element in the form of an active fiber-optic guide and a source of diode pumping. First output of the power supply unit is electrically connected to the input of the radiator, which contains a temperature sensor, the output of which is electrically connected to the input of the power supply unit, at least one heating elements, power outputs of which are electrically connected to the second output of the power supply unit. Laser is equipped with optical fiber paddle couplers, a resonator formed by selective mirrors, made in the form of fiber Bragg gratings with resonant wavelength in range of 1,907.6–1,908.2, at least one diode pumping source equipped with emitters located on opposite sides of the heat-removing plate, formed by part of laser housing, and fiber outlet of radiation equipped with a crystalline tip. Diode pumping sources used are laser diodes with wave length 786 nm and temperature drift of wavelength 0.3 nm/K.

EFFECT: technical result consists in enabling improvement of operational capabilities with reduced weight and size characteristics.

6 cl, 5 dwg