Siltanen Mikael, Leinonen Tomi, Halonen Lauri
Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland.
Opt Express. 2011 Sep 26;19(20):19675-80. doi: 10.1364/OE.19.019675.
We have constructed a singly resonant, continuous-wave optical parametric oscillator, where the signal beam resonates and is amplified by a semiconductor gain mirror. The gain mirror can significantly decrease the oscillation threshold compared to an identical system with conventional mirrors. The largest idler beam tuning range reached by changing the pump laser wavelength alone is from 3.6 to 4.7 µm. The single mode output power is limited but can be continuously scanned for at least 220 GHz by adding optical components in the oscillator cavity for increased stability.
我们构建了一个单共振连续波光参量振荡器，其中信号光束通过半导体增益镜共振并放大。与使用传统镜子的相同系统相比，增益镜可显著降低振荡阈值。仅通过改变泵浦激光波长实现的最大闲频光束调谐范围为3.6至4.7微米。单模输出功率有限，但通过在振荡器腔中添加光学元件以提高稳定性，可连续扫描至少220吉赫兹。
