Active cooling type one-dimensional wave surface correction device

Abstract

The invention discloses an active cooling type one-dimensional wave surface correction device which comprises a base, an actuator and a lens. A cooling cavity is formed in the top of the base, a water inlet is formed in one end of the cooling cavity, and a water outlet is formed in the other end of the cooling cavity. A through hole is formed in the bottom of the cooling cavity, and the actuator is arranged on the base and adheres to the lens through the through hole in the bottom of the cooling cavity, wherein the cooling cavity is covered with the lens. A cooling material flows in through a water mouth at the bottom of a cooling plate and flows from a water mouth in the top, the cooling material in the cooling cavity fully conducts heat exchange with the lens, so that active cooling is achieved. When weave surface fluctuation in the length direction of a strip-shaped light spot is found through Hartmann detection, a corresponding current or voltage is loaded on the corresponding actuator through a connector, the actuator drives a lens face to vertically move, and the lens face is deformed, so that one-dimensional correction of the weave face shape is achieve.

Description

technical field [0001] The invention belongs to the field of wavefront correction in adaptive optical systems, in particular to an active cooling type one-dimensional wavefront correction device, which is used for one-dimensional correction of the wavefront of striped light spots. Background technique [0002] In an optical system, the beam quality β value of the emitted beam is an important indicator of the system, and the quality of the beam wavefront is directly related to the beam quality. In order to reduce the beam quality, external measures generally adopted at present are to minimize the influence of thermal effects, turbulence, noise, etc. The wave front in the length direction fluctuates greatly, and there are many high-order components, but there is no big change in the width direction. The technical measures taken above are difficult to effectively control the wave front. For beams with high power density, the thermal distortion of the mirror surface Additional ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an active cooling type one-dimensional wavefront correction device in order to overcome a series of deficiencies such as the influence of the stripe-shaped spot wavefront fluctuation on the beam quality and the thermal distortion of the mirror due to inadequate control measures in the optical system.

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