论文部分内容阅读
报道了一台全固态连续波500,8 nm青光激光器。实验中采用复合式谐振腔结构,用两个激光二极管阵列(LDA)经过光纤耦合分别单独端面抽运两块Nd:YAG晶体,青色激光由两块Nd:YAG晶体的1064 nm和946 nm谱线非线性和频产生。在两个子谐振腔的交叠区域利用LBO Ⅰ类临界相位匹配进行腔内和频,通过谐振腔优化设计,实现了腔内两个波长较好的模式与增益匹配。当注入到两块Nd:YAG晶体的抽运功率分别为12 W和8 W时,获得223 mW的TEM00模连续波500.8 nm青色激光输出,水平和垂直方向的光束质量M2因子约为1.2。实验结果表明,采用复合式腔结构和频是获取高功率500.8 nm青色激光输出的有效方法。
Reported an all-solid-state continuous wave 500, 8 nm blue laser. In the experiment, a hybrid resonator structure was adopted. Two Nd: YAG crystals were pumped by two laser diode arrays (LDA) through separate fiber-coupled end faces. The cyan laser consisted of 1064 nm and 946 nm spectra of two Nd: YAG crystals Nonlinearity and frequency generation. In the overlapping region of the two sub-resonant cavity, LBO Ⅰ -type critical phase matching is used for the intracavity and the frequency multiplication. By optimizing the design of the resonant cavity, two modes with good wavelength matching in the cavity are achieved. When the pumping power injected into two Nd: YAG crystals was 12 W and 8 W respectively, a TEM 500-mode CW 500.8 nm cyan laser output of 223 mW was obtained with a horizontal and vertical beam quality factor of about 1.2. The experimental results show that the use of composite cavity structure and frequency is an effective method to obtain a high-power 500.8 nm blue laser output.