Butkus M, Wilcox K G, Rautiainen J, Okhotnikov O G, Mikhrin S S, Krestnikov I L, Kovsh A R, Hoffmann M, Südmeyer T, Keller U, Rafailov E U
School of Engineering, Physics and Mathematics, University of Dundee, Dundee DD1 4HN, UK.
Opt Lett. 2009 Jun 1;34(11):1672-4. doi: 10.1364/ol.34.001672.
We demonstrate multiwatt cw output power from an optically pumped quantum-dot semiconductor disk laser. Continuous-wave output power of 4.35 W with 22% slope efficiency was demonstrated at a center wavelength of 1,032 nm. This represents an increase in power of 15 times and an increase in slope efficiency of 10 times from the previously published results using Stranski-Krastanow grown quantum dots. An intracavity diamond heat spreader was used for thermal management. The maximum output power was limited by the available pump power, and no sign of thermal rollover was observed.
我们展示了光泵浦量子点半导体盘激光器的多瓦连续波输出功率。在中心波长1032nm处实现了4.35W的连续波输出功率，斜率效率为22%。与之前使用斯特兰斯基-克拉斯坦诺夫生长量子点发表的结果相比，这代表着功率提高了15倍，斜率效率提高了10倍。腔内使用了金刚石散热器进行热管理。最大输出功率受可用泵浦功率限制，未观察到热滚降迹象。
