Universität Potsdam, Institut für Physik und Astronomie, Lehrstuhl für Photonik, Potsdam, Germany.
Opt Lett. 2010 Jan 15;35(2):232-4. doi: 10.1364/OL.35.000232.
A new approach for efficient second-harmonic generation using diode lasers is presented. The experimental setup is based on a tapered amplifier operated in a ring resonator that is coupled to a miniaturized enhancement ring resonator containing a periodically poled lithium niobate crystal. Frequency locking of the diode laser emission to the resonance frequency of the enhancement cavity is realized purely optically, resulting in stable, single-frequency operation. Blue light at 488 nm with an output power of 310 mW is generated with an optical-to-optical conversion efficiency of 18%.
提出了一种利用二极管激光器实现高效二次谐波产生的新方法。实验装置基于在环形谐振器中运行的锥形放大器，该谐振器与包含周期性极化铌酸锂晶体的小型增强环形谐振器耦合。通过纯光学方法实现了二极管激光发射与增强腔共振频率的频率锁定，从而实现了稳定的单频操作。以 310mW 的输出功率产生了 488nm 的蓝光，光-光转换效率为 18%。
