激光技术2025，Vol.49Issue(1)：48-52,5.DOI:10.7510/jgjs.issn.1001-3806.2025.01.008
端面抽运窄脉宽高转化率全固态532nm激光器
High conversion,end-pumped small pulse width 532 nm all-solid-state laser
吕锋 1康恺 1邓俊杰1
作者信息
- 1. 武汉华日精密激光股份有限公司,武汉 430000,中国
- 折叠
摘要
Abstract
In order to obtain a green laser with high conversion rate and narrow pulse width,the pumping source of the laser consists of two 80 W laser diodes with a center wavelength of 878 nm and a line width of 1 nm was adopted.Two Nd∶YVO4 were pumped end-face of the laser.The diaphragm mode selection and acousto-optic Q crystal modulate the YVO4 crystal,and the LiB3 O5(LBO)crystal doubles the frequency before exporting the light with the 1064 nm fundamental frequency out of the cavity.A stable 532 nm green laser with a stable output was achieved when the flat convex unstable cavity regulates the crystal's thermal lens effect.The results show that,under operating conditions between 80 kHz and 200 kHz,the green laser's repetition frequency is 100 kHz,its pump power is both 70 W,its output power is 36.7 W,its pulse width is 7.3 ns,its light conversion efficiency is approximately 26.2%,its spot roundness and focus spot roundness are both greater than 90%and 97%,and its pulse stability is less than 2%,respectively.It has been verified that the parameter green laser has a better performance than other lasers of the same type in glass drilling,with the edge collapse range controlled within 100 μm.This study is significantly helpful in optimizing the process effect of nanosecond laser products and expanding the application scope of products.关键词
激光器/全固态激光器/谐振腔设计/激光晶体Key words
lasers/all-solid-state laser/resonator design/laser crystal分类
信息技术与安全科学引用本文复制引用
吕锋,康恺,邓俊杰..端面抽运窄脉宽高转化率全固态532nm激光器[J].激光技术,2025,49(1):48-52,5.
