Compact pulse laser amplifier

Abstract

The invention provides a compact pulse laser amplifier. The compact pulse laser amplifier comprises an incident adjustment assembly part and a cyclic amplification assembly part, the incident adjusting assembly part sequentially comprises a collimator, a half-wave plate I, a polarizing film I, an optical rotator and a half-wave plate II; the cyclic amplification assembly part sequentially comprises a total reflection mirror I, a total reflection mirror II, a polarizing film II, a total reflection mirror III, a pumping source, a total reflection mirror IV, a long-strip-shaped reflection mirror set, a total reflection mirror V, a quarter-wave plate, an electro-optical modulator and a total reflection mirror VI. According to the compact pulse laser amplifier of the invention, the long-strip-shaped reflection mirror set is introduced for multiple reflections to increase the optical distance and reduce the size of the overall optical path, so that the size is further reduced and integration is facilitated; the air-cooled LD side pumping source is adopted, a water path is not needed, the size is smaller, and the structure is more compact; and after an electric turntable and an electric guide rail are additionally arranged, the displacement and the rotation angle can be autonomously controlled according to the change of input pulse width, so that pulse laser with different laser pulse widths can be amplified.

Description

technical field [0001] The invention relates to the laser field, in particular to a compact pulse laser amplifier. Background technique [0002] Usually the single pulse energy of the seed light generated by the pulsed laser seed source is relatively low, generally in the order of nJ, such a low single pulse energy cannot meet the needs of practical applications. In order to obtain higher power and higher single pulse energy Laser pulses need to be amplified to meet practical application requirements. [0003] Generally, laser amplification includes single-pass amplification, multi-pass traveling wave amplification, and regenerative amplification. In order to obtain high single-pulse energy, multiple laser amplification processes are required to achieve it. In this way, the structure of the amplifier is relatively loose and the volume is very large, which is not conducive to the integration of optical circuits. Contents of the invention [0004] The invention provides a ...

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Problems solved by technology

[0004] The invention proposes a compact pulse laser amplifier, which solves the defects o

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