SPECTRAL SUPPLEMENTING SYSTEM FOR RADIATION OF FIBER OPTICAL LASERS Russian patent published in 2023 - IPC H01S3/23 H01S3/06 

FIELD: light inputting technology.

SUBSTANCE: invention relates to technology for inputting light coming from several fiber laser devices into one optical component and controlling radiation coming from similar laser devices, and can be used in the manufacture of high power laser technology. The system of spectral combining of radiation from fiber-optic lasers contains radiation sources, one of which is the main one and is optically connected to selective elements, which are connected to additional radiation sources. Each radiation source is equipped with two fiber Bragg gratings, one of which is highly reflective, and the other is output, while the width of the reflection spectrum of the highly reflective grating is greater than the width of the output spectrum. Selective elements and fiber Bragg gratings are equipped with a thermal stabilization system, the width of the reflection spectrum of the two gratings of the main radiation source is greater than the width of the reflection spectrum of the two gratings of each of the additional radiation sources, the output power of the main radiation source is at least twice the output power of each of the additional sources.

EFFECT: increase in the output power of laser radiation while maintaining the quality of radiation close to diffraction.

4 cl, 1 dwg