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

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and a device for measuring energy of powerful laser radiation pulses. Device includes a laser light source, diffusing medium, optical fibre collectors, laser radiation attenuator, photodiodes, measuring and computing unit. Completely diffusing diffuser is used as diffusing medium, it is made of optical glass in the form of a cylindrical washer and installed at an acute angle of washer symmetry axis to the optical axis. On external surface of washer branched ends of at least two fiber optic collectors are fixed uniformly in circumferential direction with possibility to adjust distance to surface of diffuser, Fiber optic collectors ensure multiple optical signal transmission 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.

4 cl, 1 dwg