【摘要】 报道了一种声光调Q激光二极管抽运Nd∶YVO4晶体腔外五倍频213nm深紫外全固态激光器。实验上分别利用KTP和两块BBO晶体产生532nm倍频绿光,266nm紫外四倍频以及基波与四倍频的混频,实现了从Nd∶YVO4近红外激光到213nm深紫外激光的频率变换。在10.3W抽运功率下,获得平均输出功率3.1mW,脉宽7.5ns的213nm深紫外激光输出。更多还原

【Abstract】 A compact and efficient 213 nm deep-ultraviolet all solid state laser based on Q-switched laser diode （LD）-pumped Nd∶YVO₄ laser is presented. In the experiment, KTP crystal （KTiOPO₄） and BBO crystal （beta-BaB₂O₄） are used for the 532 nm second-harmonic generation and the 266 nm fourth-harmonic generation respectively. Subsequent sum-frequency mixing is performed in a second BBO crystal to mix the fourth-harmonic at 266 nm and the residual fundamental at 1064 nm. At 10.3 W of incident pump power, the average power of 3.1 mW at 213 nm with the pulse width of 7.5 ns is obtained.更多还原