全固态589nm复合腔连续波和频激光器  

All-solid-state continuous-wave doubly resonant all intra-cavity sum-frequency laser at 589 nm

作　　者：吕彦飞[1] 檀慧明[1] 钱龙生[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《光学精密工程》2005年第3期260-264,共5页Optics and Precision Engineering

基　　金：国家"863"高科技计划资助项目(No.2002AA311140)

摘　　要：给出了一种复合腔结构和频激光器,用2台激光二极管阵列(LDA)经过光纤耦合分别单独端面抽运Nd:YVO4和Nd:YAG晶体,其中Nd:YVO4和Nd:YAG晶体所选择的能级跃迁分别为4F3/24I11/2和4F3/24I13/2,其对应激光跃迁波长分别为1064nm和1319nm,两基频激光束分别在两个子谐振腔中振荡,在其交叠区利用KTPII类临界相位匹配(CPM)进行腔内和频,获得了589nm的和频激光。当抽运功率为8W/14W时获得了340mW连续波TEM00黄激光输出。光束质量因子M2<1.2,激光输出功率噪声低,4h功率不稳定度小于±3%。该复合腔结构是实现LDA泵浦589nm全固态黄光激光器一种有效的和频方法。A resonator designed for doubly resonant continuous-wave intra-cavity sum-frequency mixing (SFM) laser is studied. Nd:YVO4 and Nd:YAG are pumped by two Laser Diode Array (LDA) which were coupled by optical fiber respectively, 1064 nm wavelength is obtained from 4F3/2-4I11/2 transition in Nd:YVO4 and 1319 nm wavelength is obtained from 4F3/2-4I13/2 transition in Nd:YAG. Both laser beams are oscillated in two sub-cavity, and a KTP with type II Critical Phase Match (CPM) is used at the overlap of the two fundamental laser beams to realize the 589 nm SFM laser. An output power of 340 mW continuous-wave TEM00 yellow laser could be obtained with 8 W/14 W pump power. The output power is with low noise and a M2 factor of less than 1.2. The power instability is less than ±3% within 4 h. Doubly resonant is an effective solution to realize 589 nm all solid state yellow laser pumped by LDA.

关 键 词：激光二极管阵列 和频 全固态激光器 黄光激光器 

分 类 号：TN248.1[电子电信—物理电子学]