高功率二极管泵浦Yb3+：CaF2飞秒激光器。

High-power diode-pumped Yb3+:CaF2 femtosecond laser.

作者信息

Lucca A, Debourg G, Jacquemet M, Druon F, Balembois F, Georges P, Camy P, Doualan J L, Moncorgé R

机构信息

Laboratoire Charles Fabry de l'Institut d'Optique, du Centre National de la Recherche Scientifique et de l'Université Paris-Sud, Centre Universitaire, Batiment 503, 91403 Orsay Cedex, France.

出版信息

Opt Lett. 2004 Dec 1;29(23):2767-9. doi: 10.1364/ol.29.002767.

DOI:10.1364/ol.29.002767

PMID:15605499

Abstract

We report what is believed to be the first demonstration of a high-power passively mode-locked diode-pumped femtosecond laser based on an Yb3+:CaF2 single crystal, directly pumped by a 15-W fiber-coupled laser diode. With a 5-at. % Yb3+ -doped sample and prisms for dispersion compensation we obtained pulses as short as 150 fs, with 880 mW of average power and up to 1.4-W average output power, with a pulse duration of 220 fs, centered at 1049 nm. The laser wavelength could be tuned from 1040 to 1053 nm in the femtosecond regime. Using chirped mirrors for dispersion compensation, the oscillator provided up to 1.74 W of average power, with a pulse duration of 230 fs, corresponding to a pulse energy of 20 nJ and a peak power of 85 kW.

摘要

我们报道了基于Yb3+:CaF2单晶、由15瓦光纤耦合激光二极管直接泵浦的高功率被动锁模二极管泵浦飞秒激光器的首次演示。对于一个5原子% Yb3+掺杂的样品，使用棱镜进行色散补偿，我们获得了短至150飞秒的脉冲，平均功率为880毫瓦，平均输出功率高达1.4瓦，脉冲持续时间为220飞秒，中心波长为1049纳米。在飞秒范围内，激光波长可从1040纳米调谐至1053纳米。使用啁啾镜进行色散补偿，振荡器提供高达1.74瓦的平均功率，脉冲持续时间为230飞秒，对应脉冲能量为20纳焦，峰值功率为85千瓦。