激光技术
激光技術
격광기술
LASER TECHNOLOGY
2013年
4期
503-505
,共3页
饶志明%王新兵%肖贤波%卢彦兆
饒誌明%王新兵%肖賢波%盧彥兆
요지명%왕신병%초현파%로언조
激光技术%3次谐波%相位匹配%CO2 激光%AgGaSe2 晶体
激光技術%3次諧波%相位匹配%CO2 激光%AgGaSe2 晶體
격광기술%3차해파%상위필배%CO2 격광%AgGaSe2 정체
laser technique%third-harmonic generation%phase matching%CO2 laser%AgGaSe2 crystal
为了在AgGaSe2晶体中产生3次谐波，利用自行研制的1台可调谐脉冲CO2激光器，在2次谐波中采用Ⅰ类匹配，并在3次谐波中采用Ⅱ类匹配的方法。实验中CO2激光输出波长为9.6μm，在AgGaSe2晶体中得到了波长为4.8μm的2次谐波以及波长为3.2μm的3次谐波，其峰值功率分别为88kW和4kW，并测量了相位匹配允许角。结果表明，在该AgGaSe2晶体实验中能有效地输出3次谐波，随着CO2激光功率的增大，输出2次谐波峰值功率和3次谐波峰值功率的级数都增加。
為瞭在AgGaSe2晶體中產生3次諧波，利用自行研製的1檯可調諧脈遲CO2激光器，在2次諧波中採用Ⅰ類匹配，併在3次諧波中採用Ⅱ類匹配的方法。實驗中CO2激光輸齣波長為9.6μm，在AgGaSe2晶體中得到瞭波長為4.8μm的2次諧波以及波長為3.2μm的3次諧波，其峰值功率分彆為88kW和4kW，併測量瞭相位匹配允許角。結果錶明，在該AgGaSe2晶體實驗中能有效地輸齣3次諧波，隨著CO2激光功率的增大，輸齣2次諧波峰值功率和3次諧波峰值功率的級數都增加。
위료재AgGaSe2정체중산생3차해파，이용자행연제적1태가조해맥충CO2격광기，재2차해파중채용Ⅰ류필배，병재3차해파중채용Ⅱ류필배적방법。실험중CO2격광수출파장위9.6μm，재AgGaSe2정체중득도료파장위4.8μm적2차해파이급파장위3.2μm적3차해파，기봉치공솔분별위88kW화4kW，병측량료상위필배윤허각。결과표명，재해AgGaSe2정체실험중능유효지수출3차해파，수착CO2격광공솔적증대，수출2차해파봉치공솔화3차해파봉치공솔적급수도증가。
In order to generate the third harmonic in AgGaSe 2 crystals, Ⅰand Ⅱ phase-match were applied for the second and third harmonics of CO 2 laser respectively.In the experiment, output wavelength of CO 2 laser was 9.6μm.The peak power of the second-harmonic at 4.8μm was 88kW and the peak power of the third-harmonic at 3.2μm was 4kW respectively.The phase-matching acceptance angle was measured .The results show that the second-harmonic wave and the third-harmonic wave are acquired effectively and peak power of the second -harmonic wave and third-harmonic wave increase rapidly with the increase of input power of CO 2 laser.
