MULTICHANNEL DEVICE FOR MEASURING ENERGY OF POWERFUL NANO- AND PICOSECOND LASER PULSES Russian patent published in 2016 - IPC G01J1/04 G01J11/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and device for measuring energy of powerful laser radiation pulses. Device includes laser radiation source, diffusing medium, optic fiber collectors, laser radiation attenuators, photodiodes, measuring and computing unit. Dissipating medium is diffusing diffuser made up in form of cylindrical washer from diffusing glass. On external surface of washer uniformly in circumferential direction branched end are fixed with possibility to adjust distance to surface of diffusers, at least, two optical fibre collectors, ensuring transmission of multiple optical signal at different wavelengths through attenuators on photodiodes. Outlet collector ends are fixed with possibility to adjust distance to attenuator.

EFFECT: technical result consists in improvement of accuracy, wider spectral range and power of measured radiation.

5 cl, 2 dwg