Kuzucu Onur, Wong Franco N C, Zelmon David E, Hegde Shrikrishna M, Roberts Tony D, Battle Philip
Research Laboratory, Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, USA.
Opt Lett. 2007 May 15;32(10):1290-2. doi: 10.1364/ol.32.001290.
We demonstrate a high-power, narrowband pulsed source at 390 nm by two stages of frequency doubling in periodically poled MgO:LiNbO(3) and periodically poled KTiOPO(4) of an amplified, passively mode-locked fiber laser. With a frequency quadrupling efficiency of 5.5% and a 0.1 nm bandwidth, the 250 mW ultraviolet source is a suitable compact pump source for many entanglement-based quantum information processing tasks.
我们通过对放大的被动锁模光纤激光器在周期极化的氧化镁掺杂铌酸锂（MgO:LiNbO₃）和周期极化的磷酸钛氧钾（KTiOPO₄）中进行两级倍频，展示了一种波长为390纳米的高功率窄带脉冲光源。该紫外光源频率四倍频效率为5.5%，带宽为0.1纳米，功率为250毫瓦，是许多基于纠缠的量子信息处理任务适用的紧凑型泵浦源。
