Heat capacity type neodymium glass sheet laser

Abstract

The invention discloses a neophane glass lath laser in heat capacity type. The invention is characterized in that the invention comprises a resonant cavity and lath laser glass medium. The resonant cavity is a plane-paralleled cavity which comprises a rectangle total reflective mirror and a rectangle output coupling mirror; the transverse size of the plane-paralleled cavity is larger than the width of the lath laser glass medium; the upper side and the lower side of the lath laser glass medium are respectively provided with rectangle silvering optical reflectors which are symmetrical with each other; the optical reflectors are provided with openings which face to the lath laser glass medium; the openings are hermetically provided with a cerium-doped quartz pipe; the optical reflectors are internally provided with a plurality of pumping lights which are arranged along the direction of the laser; the discharging direction of the pumping light is vertical to the arranging direction; cooling water is arranged in the optical reflectors; the invention has the advantages of simple structure, obtaining the laser output with high energy and high power by operating under high repeated frequencies in short time, uniform and stable laser output, recovering the glass working medium to original state in the operation interval of the device, and avoiding the thermal lens effect and the thermal stress effect to the laser device.

Description

technical field [0001] The invention relates to a laser, in particular to a heat capacity neodymium glass slab laser. Background technique [0002] Due to the extremely poor thermal conductivity of laser glass, when operating at a high repetition rate, the severe thermal lens effect will shatter the laser, and the thermal stress will cause the laser glass to break. In order to overcome this shortcoming, many different lasers have been developed, such as thermal The capacitive moving plate glass laser is characterized by the movement of the laser medium, so that the flash lamp pumps a local area of ​​the glass to generate laser light at a certain moment, and pumps another area at another moment. The local pumping can achieve a higher power density. In order to obtain high laser efficiency, and the cooling is distributed on the entire plate surface, high average power laser output can be achieved, but the output power of the entire laser device is limited by the load capacity ...

AI Technical Summary

Problems solved by technology

Although it overcomes the shortcomings of the laser medium movement, the structure of the laser system is still very large and complex, and it inevitably brings the drift of the output laser direction

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