FIELD: physics.
SUBSTANCE: metre of radiation intensity in pulse optical quantum oscillators comprises double-beam interferometre by Rozhdestvenskiy with two dead and two semi-transparent mirrors. In its first optical branch - signal one - magnetooptical cell of Cotton-Mouton and crossed nicol are serially installed, and in the second one - reference one - there are the following components serially installed - phase plate, photometric wedge and half-wave plate. To inlet of interferometre by Rozhdestvenskiy via Polaroid there is a single-frequency single-mode optical quantum oscillator of continuous action connected. Radiation of measured pulse optical quantum oscillator via quarter-wave plate and diaphragm radiates magnetooptical cell of Cotton-Mouton in direction perpendicular to distribution of laser radiation in it from single-frequency single-mode optical quantum oscillator of continuous action. Outlet of interferometre by Rozhdestvenskiy is connected to inlet of homodyne photodetector based on compound "cadmium-mercury-tellurium" cooled by liquid nitrogen, electric outlet of which is connected to inlet of spectrum analyser.
EFFECT: provision of linear assessment of intensity of ultra-short and powerful pulses of laser radiation of optical quantum oscillators that operate in modes with modulated Q value or synchronisation of modes.
1 dwg
