A multi-pass laser amplifier based on disk crystal

Abstract

The present invention provides a multi-pass laser amplifier based on a disk crystal, belonging to the technical field of laser amplifiers. The cooling part comprises a fixing frame, a heat sink, and a cooling shell. The fixing frame is fixedly connected to the peripheral edge of the disk crystal body. The fixing frame and the cooling shell are sealed and fixed by a sealing ring, and the heat sink is pressed to the right against the left side surface of the disk crystal body through the clamping edge in the cooling shell cavity. A cooling component is horizontally arranged in the cooling shell cavity. The cooling part is designed to have an efficient conduction heat dissipation cooling design on the left side of the disk crystal body, so that the cooling liquid is sprayed in a plurality of equidistant conical column forms, and the non-intersecting design of the coolants in each conical column form reaching the heat sink makes it possible for adjacent conical column coolants to not have the problem of intersecting morphology destruction, and can also realize the lateral extrusion reflux and external discharge of the coolant in the middle area.

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