Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, Jena, Germany. reinhold.lehneis@uni‑jena.de
Opt Lett. 2013 Jul 15;38(14):2478-80. doi: 10.1364/OL.38.002478.
We present a novel concept to generate sub-picosecond pulses from a passively Q-switched Nd:YVO4 microchip laser system with an adjustable wavelength shift up to a few tens of nanometers around the original emission wavelength of 1064 nm. This concept comprises two stages: one that carries out a nonlinear compression of fiber-amplified microchip pulses and a subsequent stage in which the compressed pulses are coupled into a further waveguide structure followed by a bandpass filter. In a proof-of-principle experiment, pedestal-free 0.62 ps long pulses have been demonstrated with a wavelength shift to 1045 nm.
我们提出了一种新颖的概念，可从带有可调谐波长移的被动调 Q Nd:YVO4 微芯片激光系统中产生亚皮秒脉冲，波长移可达到原始发射波长 1064nm 左右几十纳米。该概念包括两个阶段：第一阶段对光纤放大的微芯片脉冲进行非线性压缩，第二阶段将压缩后的脉冲耦合到进一步的波导结构中，然后再通过带通滤波器。在原理验证实验中，已证明具有 1045nm 波长移的无基座 0.62ps 长脉冲。
