Anashkina E A, Andrianov A V, Yu Koptev M, Muravyev S V, Kim A V
Opt Lett. 2014 May 15;39(10):2963-6. doi: 10.1364/OL.39.002963.
Femtosecond pulses with broad tunability in the range of 2-3 μm are generated in a germanate-glass core silica-glass cladding fiber with a driving pulse at 2 μm produced by an all-fiber laser system consisting of an Er:fiber source at 1.6 μm, a Raman fiber shifter, and a Tm:fiber amplifier. We demonstrate optical pulses with a duration of the order of 100 fs that are the shortest ones reported in the 2.5-3 μm range obtained by fiber laser systems.
在一种锗酸盐玻璃芯-石英玻璃包层光纤中，利用由1.6μm的掺铒光纤源、拉曼光纤移位器和掺铥光纤放大器组成的全光纤激光系统产生的2μm驱动脉冲，产生了波长在2 - 3μm范围内具有宽可调谐性的飞秒脉冲。我们展示了持续时间约为100飞秒的光脉冲，这是光纤激光系统在2.5 - 3μm范围内所报道的最短脉冲。
