Pulse laser beam combiner based on domain inversion electro-optic crystal, and method thereof

Abstract

The invention discloses a pulse laser beam combiner based on a domain inversion electro-optic crystal, and a method thereof. The pulse laser beam combiner based on a domain inversion electro-optic crystal comprises an electro-optic crystal with domain inversion, a drive circuit, at least two lasers and a synchronous machine, wherein the electro-optic crystal is provided with an upper bottom surface and a lower bottom surface which are parallel with each other; each domain structure is arranged in order along the direction of the longest edge of the electro-optic crystal; the difference between the spontaneous polarization directions of the adjacent domain structures is 180DEG; two plate electrodes of the drive circuit are respectively connected with the upper bottom surface and the lower bottom surface of the electro-optic crystal; the output ports of the lasers are opposite to the plane of incidence of the electro-optic crystal, and are arranged at the position being same to the incidence position on the plane of incidence; and the transmission directions of emitted pulse lasers are the same. The pulse laser beam combiner based on a domain inversion electro-optic crystal, and the method thereof utilize the optical deflection generated from the domain inversion electro-optic crystal, and combine the optical deflection with the features of pulse lasers and the synchronous machine to realize multi-path pulse laser beam combination through a first-level beam combiner.

Description

technical field [0001] The invention relates to the field of high-power lasers, in particular to a pulsed laser beam combiner and method based on domain inversion electro-optic crystals. 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 (ie 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 produce serious thermal effects, which will affect the performance of the laser, and even cause the output pulse energy of the laser to decrease or fail to work. For high-average-power lasers, application r...

AI Technical Summary

Problems solved by technology

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 cause the output pulse energy of the laser to drop or fail to work.

For high average power lasers, application requirements continuously put forward higher requirements for laser output power, but the single-channel laser power is limited, and it is difficult to achieve higher average output power

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