Shaft reflective pulse laser beam combiner and pulse beam combiner laser system

Abstract

The invention relates to a rotating shaft reflection type pulsed laser beam combiner and a pulse beam combination laser system. In order to overcome the defects in the existing pulse timing sequence beam combination that a transmission type component is difficult to adapt to high-power laser or the defects that other beam combination methods affect the beam quality after the beam combination, theinvention provides a beam combiner for pulse laser. The beam combiner comprises a rotating shaft and reflectors fixed thereon, wherein the axial lead of the rotating shaft is parallel to a combined beam, the reflectors are arranged along the axial lead of the rotating shaft at intervals and are distributed along the radial direction in a stagger manner by using the axle center as the circle center; and multiple beams of pulse laser are reflected by the corresponding reflectors and are emitted along an output light path after being combined in the space. The invention further provides a pulsebeam combination laser system, consisting of the beam combiner, multiple pulse lasers and multiple foldback mirrors, wherein the pulse lasers emit laser according to a set timing sequence, and the laser is incident to the reflectors after being returned by the foldback mirrors to form combined laser for emitting.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a shaft reflective pulse laser beam combiner and a pulse beam combiner laser system. Background technique [0002] With the continuous development and maturity of laser technology, high-power lasers have become more and more widely used, which has profoundly affected the development of many industries. According to the working mode, high-power lasers are mainly divided into high-peak-power lasers (that is, high-energy pulsed lasers) and high-average power lasers. [0003] For high-energy pulsed lasers, lasers are required to have a certain repetition rate in various application fields. However, directly increasing the repetition rate of high-energy pulsed laser operation will cause serious thermal effects, which will affect the performance of the laser, and even lead to a decrease in the output pulse energy of the laser. can not work. For high-average-power lasers, a...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the defect that the transmissive element is difficult to adapt to the high-power laser in the existing pulse sequence beam combining or the defect that other beam combining methods affect the beam quality after beam combining, and proposes a rotating shaft reflector Type pulse laser beam combiner and pulse beam combiner laser system, which greatly improves the average output power and repetition rate of a single laser, and basically keeps the beam quality of the original laser unchanged, and has good power and laser quantity scalability

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