应用光学
應用光學
응용광학
JOURNAL OF APPLIED OPTICS
2014年
3期
438-440,458
,共4页
黎高平%杨鸿儒%杨斌%岳文龙%阴万宏%于东钰%谢毅
黎高平%楊鴻儒%楊斌%嶽文龍%陰萬宏%于東鈺%謝毅
려고평%양홍유%양빈%악문룡%음만굉%우동옥%사의
连续波高能激光%量热式激光能量计%热损失%平面吸收腔
連續波高能激光%量熱式激光能量計%熱損失%平麵吸收腔
련속파고능격광%량열식격광능량계%열손실%평면흡수강
CW high-energy laser%calorimetric energy meter%heat loss%plane absorption cavity
采用量热法的高能激光能量计用于测量能量大于50 kJ的连续波高能激光能量,通常用已知功率的连续激光开展激光能量计的光电校准需要激光照射时间超过20 min ,而由于热损失等原因,进行长时间激光能量校准时,校准不确定度高达12%。以量热式平面吸收高能激光能量计为模型,从理论上分析了热辐射、热对流对连续波高能激光能量测量结果的影响,得到了较准确的平面吸收腔激光能量计冷却数学模型,实现了能量计热损失补偿,并通过建立相应的实验装置验证了该模型,用其对装置的测量结果加以修正,可使光电校准的测量不确定度减小到1%以下。
採用量熱法的高能激光能量計用于測量能量大于50 kJ的連續波高能激光能量,通常用已知功率的連續激光開展激光能量計的光電校準需要激光照射時間超過20 min ,而由于熱損失等原因,進行長時間激光能量校準時,校準不確定度高達12%。以量熱式平麵吸收高能激光能量計為模型,從理論上分析瞭熱輻射、熱對流對連續波高能激光能量測量結果的影響,得到瞭較準確的平麵吸收腔激光能量計冷卻數學模型,實現瞭能量計熱損失補償,併通過建立相應的實驗裝置驗證瞭該模型,用其對裝置的測量結果加以脩正,可使光電校準的測量不確定度減小到1%以下。
채용량열법적고능격광능량계용우측량능량대우50 kJ적련속파고능격광능량,통상용이지공솔적련속격광개전격광능량계적광전교준수요격광조사시간초과20 min ,이유우열손실등원인,진행장시간격광능량교준시,교준불학정도고체12%。이량열식평면흡수고능격광능량계위모형,종이론상분석료열복사、열대류대련속파고능격광능량측량결과적영향,득도료교준학적평면흡수강격광능량계냉각수학모형,실현료능량계열손실보상,병통과건립상응적실험장치험증료해모형,용기대장치적측량결과가이수정,가사광전교준적측량불학정도감소도1%이하。
High energy laser (HEL) meter by means of calorimetric method is used to measure continuous wave (CW) laser with energy more than 50 kJ .The photoelectricity calibration is usually made by CW laser illumination with known power for more than 20 minutes ,and be-cause of the heat loss ,the uncertainty is up to 12% .The influence of heat radiation and heat convection on energy measurements of CW high energy laser was analyzed theoretically based on the model of calorimetric plane absorbing HEL energy meter .The cooling down model for laser energy meter with plane absorbing chamber was deduced accurately which made it possi-ble to compensate for heat loss of energy meter .The experiments apparatus was established to verify the correctness of the model .With this model ,the measurement uncertainty of photoe-lectricity calibration decreases to 1% above .