LD抽运1319nm单频激光器的调谐和噪声抑制研究  

Study on laser-diode-pumped 1319nm single frequency laser tuning and noise suppression

作　　者：赵严[1] 高春清[1] 曹一磊[1] 李家泽[1] 魏光辉[1] 

机构地区：[1]北京理工大学光电工程系,北京100081

出　　处：《激光技术》2004年第5期466-468,共3页Laser Technology

基　　金：国防"十五"预研基金资助项目(0 0 36 2 0 10 10 6 )

摘　　要：研究了LD抽运单块非平面行波环行腔Nd∶YAG激光器的调谐特性 ,通过控温法实现了 1319nm单频激光的宽范围调谐 ,调谐范围 14GHz。实验研究了影响 1319nm单频激光器功率噪声主要因素 ,测量了激光功率噪声谱 ,并通过光电反馈抑制弛豫振荡功率噪声 ,弛豫震荡中心频率噪声抑制了 30dB ,提高了测量精度。The frequency tuning of LD-pumped non-planar ring Nd∶YAG resonator laser is studied.The output power of the 1319nm single frequency laser is tuned broadly in 14GHz by temperature control.Further more,the main cause of single-frequency laser’s intensity noise is studied.The intensity noise is measured and the result for an active feedback loop that suppresses the relaxation oscillation noise is presented.The intensity noise is suppressed 30dB at the central frequency of relaxation oscillation,measurement precision is improved.

关 键 词：非平面环形腔 单频 调谐 噪声 

分 类 号：TN248.1[电子电信—物理电子学]