摘要
为了使侧面抽运全固态355nm紫外激光器输出高质量光束的紫外激光,采用腔内光束传输矩阵模拟的方法,进行了谐振腔优化和腔内倍频和频结构设计。通过理论分析和实验验证,取得了输入电功率为280W、声光调制频率为40k Hz时,355nm紫外激光的输出功率为10.58W、激光脉冲宽度20ns、光束质量因子M2=1.3的数据。结果表明,侧面抽运腔内倍频与和频可实现近基模高功率紫外激光的输出。这一结果对紫外激光器的工程化有一定指导意义。
In order to output high beam quality laser from a side-pumped all-solid-state 355nm ultraviolet laser, resonant cavity structure was optimized and intra-cavity double frequency and triple frequency was designed by using the method of intra- cavity beam propagation matrix simulation. Theoretical analysis and experimental verification show that under pump power of 280W and acousto-optic modulation frequency of 40kHz, output power of 355nm ultraviolet laser is 10.58W, pulse width is 20ns and quality factor M2 is 1.3. The results show that side pump intra-cavity double frequency and triple frequency can realize the output of high power ultraviolet laser of approximate fundamental mode. The study has guidance for the engineering of ultraviolet laser.
出处
《激光技术》
CAS
CSCD
北大核心
2016年第2期303-306,共4页
Laser Technology
基金
国家自然科学基金资助项目(41301372)
太阳能高效利用湖北省协同创新中心开放基金资助项目(HBSKFMS2104022)
关键词
激光器
355nm紫外激光器
倍频与和频
谐振腔
lasers
355nm ultraviolet laser
double frequency and triple frequency
resonant cavity
