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9 天
Nature:电光频率梳芯片研究取得重要进展
光学频率梳技术在精密测量、微波合成和天文光谱观测等领域应用广泛。早期的光频梳系统体积大且成本昂贵。当前的研究前沿之一在于如何将这一技术在芯片尺度上实现,从而推动更广泛的应用。借助晶体的电光效应实现微波驱动的光频拓展是集成光频梳的主要技术方案之一,但由于传统电光材料存在双折射过强以及传统的微波电路设计能量利用率低的问题,导致集成电光频率梳光谱带宽较低,限制了这一技术的实际应用。
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