Synthesis of a single cycle of light with compact erbium-doped fibre technology
Synthesis of a single cycle of light with compact erbium-doped fibre technology
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DOI：
10.1038/nphoton.2009.258
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发表时间：
2010-01-10
期刊：
影响因子：
35
通讯作者：
Leitenstorfer, Alfred
中科院分区：
文献类型：
--
作者：
Krauss, Guenther;Lohss, Sebastian;Leitenstorfer, Alfred
自参考光学频率梳的出现（1，2）激发了超快科学中新领域的发展，如阿秒技术（3，4）和任意光波的合成（5，6）。少周期光脉冲是这些时域应用的关键，推动了对可靠、稳定和具有成本效益的锁模激光源的追求。在这里，我们提出了一个设置完全基于紧凑的掺铒光纤技术，它产生单周期的光。4.3 fs的脉冲持续时间接近于在近红外范围内传输的信息的数据位的最短可能值。这些结果表明，光通信的基本限制是可用现有的光纤技术和标准的自由空间组件。
The advent of self-referenced optical frequency combs(1,2) has sparked the development of novel areas in ultrafast sciences such as attosecond technology(3,4) and the synthesis of arbitrary optical waveforms(5,6). Few-cycle light pulses are key to these time-domain applications, driving a quest for reliable, stable and cost-efficient mode-locked laser sources with ultrahigh spectral bandwidth. Here, we present a set-up based entirely on compact erbium-doped fibre technology, which produces single cycles of light. The pulse duration of 4.3 fs is close to the shortest possible value for a data bit of information transmitted in the near-infrared regime. These results demonstrate that fundamental limits for optical telecommunications are accessible with existing fibre technology and standard free-space components.