Photonics & Nanoscience Group, School of Engineering, Physics and Mathematics, University of Dundee, Dundee, UK.
Opt Lett. 2013 Aug 1;38(15):2835-7. doi: 10.1364/OL.38.002835.
A compact picosecond all-room-temperature orange-to-red tunable laser source in the spectral region between 600 and 627 nm is demonstrated. The tunable radiation is obtained by second-harmonic generation in a periodically poled potassium titanyl phosphate (PPKTP) multimode waveguide using a tunable quantum-dot external-cavity mode-locked laser. The maximum second-harmonic output peak power of 3.91 mW at 613 nm is achieved for 85.94 mW of launched pump peak power at 1226 nm, resulting in conversion efficiency of 4.55%.
我们演示了一种紧凑的皮秒全室温橙到红可调谐激光源，其光谱范围在 600nm 到 627nm 之间。可调谐辐射是通过在周期性极化磷酸钛钾（PPKTP）多模波导中利用可调谐量子点外腔锁模激光器进行二次谐波产生而获得的。在 1226nm 处的 85.94mW 的泵浦峰值功率下，获得了 613nm 处 3.91mW 的最大二次谐波输出峰值功率，转换效率为 4.55%。
