光学精密工程2018，Vol.26Issue(2)：293-299,7.DOI:10.3788/OPE.20182602.0293
基于透射式非稳腔的单纵模TEA CO2激光器
Single longitudinal mode TEA CO2laser based on transmissive unstable resonator
摘要
Abstract
In order to obtain a high-quality single-longitudinal-mode output from a TEA CO2laser,a study on a TEA CO2laser with seed injection locking is carried out.A virtual confocal resonator with transmission coupling is proposed.The evolution of the cavity mode is simulated by Prony's method of the Glad software.The near-field and far-field intensity distributions are recorded experimentally. The results demonstrate that the simulation results are in good agreement with the experimental re-sults,w hich verifies the rationality of the cavity scheme.On the basis of this resonator,the experi-ment of seed injection locking is carried out.The experimental results show that there is a beat signal with a frequency of 195 MHz when the oscillation of unstable resonator is free.When the seed injec-tion is successfully locked,the output laser beat disappears,the waveform becomes smooth,the peak power is reduced by 48.6%,and the pulse generation time is shortened by 20 ns.The experimental results agree well with the existing results,which verifies that the TEA CO2laser with such a trans-missive unstable resonator has the ability to output a high-quality single longitudinal mode.关键词
TEACO2激光器/非稳谐振腔/注入锁定/单纵模Key words
T EA CO2lasers/unstable resonator/injection-locked/single longitudinal mode分类
信息技术与安全科学引用本文复制引用
吴世松,张合勇,王挺峰,潘其坤,郭劲..基于透射式非稳腔的单纵模TEA CO2激光器[J].光学精密工程,2018,26(2):293-299,7.基金项目
中国科学院前沿科学重点研究计划资助项目(No.QYZDB-SSW-SLH014) （No.QYZDB-SSW-SLH014）
激光与物质相互作用国家重点实验室自主基金资助项目(No.SKLLIM1510) （No.SKLLIM1510）
