本文選題：紫外脈沖激光器　切入點(diǎn)：高重復(fù)頻率　出處：《激光與紅外》2017年09期 　論文類型：期刊論文

【摘要】：報(bào)道了利用基于摻鐿光纖脈沖激光器1064 nm基頻光通過(guò)偏硼酸鋇晶體(β-BaB_2O_4,BBO)晶體四次諧波技術(shù)獲得266 nm的紫外激光輸出,利用雙晶體空間走離補(bǔ)償技術(shù)在重復(fù)頻率為80 MHz平均輸出功率為2.9 W,532 nm到266 nm的轉(zhuǎn)化效率為36.5%。通過(guò)測(cè)量266 nm光強(qiáng)的變化發(fā)現(xiàn)雙光子吸收效應(yīng)導(dǎo)致了動(dòng)態(tài)色心的形成,以及色心密度與雙光子吸收系數(shù)隨著晶體溫度變化的規(guī)律,實(shí)驗(yàn)數(shù)據(jù)表明在晶體溫度200℃的雙光子吸收效應(yīng)比室溫時(shí)低了3.5倍,提高了266 nm紫外激光的輸出功率和穩(wěn)定度。
[Abstract]:Based on ytterbium-doped fiber pulse laser 1064 nm fundamental frequency light is used to obtain 266 nm ultraviolet laser output through the fourth harmonic technique of 尾 -BaB2O4BBOO crystal. The conversion efficiency of the double crystal space walk compensation technique at the repetition rate of 80 MHz is 2.9WN 532nm to 266nm. By measuring the variation of 266nm light intensity, it is found that the two-photon absorption effect leads to the formation of the dynamic color center. The experimental data show that the two-photon absorption effect at 200 鈩，

本文編號(hào)：1578645