摘要
研究了调频微片Nd:YAG激光器的光回馈特性.在没有光回馈的情况下,激光频率每改变一个纵模间隔,激光器输出功率变化一个条纹.有光回馈时,同时改变激光频率和外腔相位,激光器输出功率波动频率正比于内、外腔长度之比.基于三镜腔等效模型的理论分析和实验结果相符合.并且讨论了这一现象在精密测量领域的潜在应用.
Optical feedback characteristics of frequency modulated microchip Nd:YAG lasers are investigated.Without optical feedback,the output intensity changes by one fringe with the laser frequency changing by one longitudinal mode spacing.With optical feedback,the modulation frequency of output intensity is proportional to the ratio of external cavity length to internal cavity length.The theoretical analysis based on three-cavity-mirror equivalent model is in good agreement with experimental results.The potential applications of this phenomenon in precision measurement are also discussed.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第11期6408-6412,共5页
Acta Physica Sinica
基金
国家自然科学基金(批准号:50575110)资助的课题.~~