全内腔式632.8nm氦氖激光管工作寿命的快速测试公式  

Fast estimation formulas for the operating lifetime of 632.8 nm He Ne lasers with full internal cavity

作　　者：孙振东 吴庚生 王喜山[1,2] 

机构地区：[1]清华大学电子工程系 [2]青岛大学物理系

出　　处：《清华大学学报（自然科学版）》1997年第1期78-80,共3页Journal of Tsinghua University(Science and Technology)

摘　　要：通过对三厂家全内腔式６３２．８ｎｍ氦氖激光管寿命试验数据的分析，得到其正常工作寿命的快速测试公式：η０＝４．６０ηｉ，η０＝４．８６ηｉ，这表明，在２０ｍＡ电流下短时间测得的特征寿命ηｉ能以快近５倍的时间快速推知氦氖激光管额定工作电流５ｍＡ下的工作寿命η０。推得的结果与实际符合很好。Based on the analysis of expermental data for 632.8 nm He Ne lasers with full internal cavity which from three manufactories, the fast estimation formulas for normal operating lifetime of the lasers are obtained as: η 0= 4.60 η i,η 0=4.86 η i. The formulas show that the normal operating lifetime η 0 of He Ne lasers can be derived faster nearly 5 times from its characteristic lifetime η i, which was measured at operating current 20 mA in a short time. The results derived from them are in good agreement with the experimental, the formulas have practical signification for both of manufactories and users.

关 键 词：氦氖激光管 工作寿命 寿命试验 气体激光器 

分 类 号：TN248.21[电子电信—物理电子学]