An apparatus for sampling a large and high energy laser beam in combination with a compressor

摘要

The invention applies to the field of sampling of pulsed laser beams which are typically high energy and large, typically greater than 1 J, ie typically larger than 1 cm in diameter. The present invention relates to an apparatus in combination with a compressor (3) for sampling a pulsed laser beam of high energy and large diameter, upstream of the compressor,-sampling diopters (44) that can transmit T% of the pulsed laser beam (T is greater than 90) and can reflect (1-T)% of the pulsed laser beam (the reflected beam is called the sample beam) Comprising:-an infinite focus (42) capable of reducing the size of the sample beam, Characterized in that the compressor has a determined effective aperture and a device (45) for re-injecting the reduced sample beam into this effective aperture.(FIG.