A light spot roundness adjusting device

By setting two non-parallel clamped laser crystals in the laser amplification device, and utilizing the difference in doping concentration and an independent control system, the problem of spot distortion caused by uneven thermal stress of the laser crystal was solved, and high roundness and long lifespan laser output were achieved.

CN122348412APending Publication Date: 2026-07-07GRACE LASER TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GRACE LASER TECH CO LTD
Filing Date
2026-06-08
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In existing laser amplification devices, the uneven thermal stress caused by the fixed clamping force direction of the laser crystal leads to beam distortion and ellipticization, especially at high doping concentrations where heat is concentrated, affecting the roundness of the beam.

Method used

By using two laser crystals with non-parallel clamping directions, combined with differences in doping concentration and spatial layout, the two crystals absorb pump light power similarly, and the resulting thermal stress directions are complementary. The thermal stress is adjusted through a clamping assembly and an independent control system to compensate for beam distortion.

Benefits of technology

It significantly improves the circularity of the laser spot, reduces the thermal load and breakage risk of the laser crystal, extends the life of the device, and maintains excellent circularity of the laser spot over a wide range without the need to replace the entire system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122348412A_ABST
    Figure CN122348412A_ABST
Patent Text Reader

Abstract

The application provides a light spot roundness adjusting device, and relates to the technical field of lasers.The device comprises a clamp assembly, a first laser crystal and a second laser crystal; the clamp assembly is used for clamping the first laser crystal and the second laser crystal; the included angle between the clamping direction of the first laser crystal and the clamping direction of the second laser crystal is greater than 0° and less than 180°; the first laser crystal and the second laser crystal are sequentially arranged along the transmission direction of pump light, used for sequentially absorbing the pump light and amplifying the laser generated by a seed source; and the doping concentration of the first laser crystal is lower than that of the second laser crystal. The application can improve the roundness of the output laser light spot.
Need to check novelty before this filing date? Find Prior Art