由单片二极管激光器泵浦的单瓦级中红外输出、单谐振、连续波光参量振荡器。

One-Watt level mid-IR output, singly resonant, continuous-wave optical parametric oscillator pumped by a monolithic diode laser.

作者信息

Nieuwenhuis Ab F, Lee Chris J, Sumpf Bernd, van der Slot Peter J M, Erbert Götz, Boller Klaus-J

机构信息

1Laser physics and Nonlinear Optics Group, MESA + Institute for Nanotechnology, University of Twente, Enschede, The Netherlands.

出版信息

Opt Express. 2010 May 24;18(11):11123-31. doi: 10.1364/OE.18.011123.

DOI:10.1364/OE.18.011123

PMID:20588971

Abstract

We report more than 1.1 Watt of idler power at 3373 nm in a singly resonant optical parametric oscillator (SRO), directly pumped by a single-frequency monolithic tapered diode laser. The SRO is based on a periodically poled MgO:LiNbO3 crystal in a four mirror cavity and is excited by 8.05 W of 1062 nm radiation. The SRO pump power at threshold is 4 W. The internal slope-efficiency and conversion efficiency reach 89% and 44% respectively. The signal and idler waves are temperature tuned in the range of 1541 to 1600 nm and 3154 to 3415 nm respectively. To the best of our knowledge, this is the highest output obtained for a diode pumped optical parametric oscillator (OPO), and the first time a SRO is directly pumped by a monolithic tapered diode laser.

摘要

我们报道了在单谐振光学参量振荡器（SRO）中，由单频单片锥形二极管激光器直接泵浦产生的波长为3373 nm的闲频光功率超过1.1瓦。该SRO基于四镜腔中的周期性极化MgO:LiNbO3晶体，并由8.05瓦的1062 nm辐射激发。SRO的阈值泵浦功率为4瓦。内部斜率效率和转换效率分别达到89%和44%。信号光和闲频光的波长分别在1541至1600 nm和3154至3415 nm范围内进行温度调谐。据我们所知，这是二极管泵浦光学参量振荡器（OPO）获得的最高输出，也是首次用单片锥形二极管激光器直接泵浦SRO。