National Laboratory for Information Science and Technology, Department of Electronic Engineering,Tsinghua University, Beijing 100084, China.
Opt Lett. 2010 May 15;35(10):1596-8. doi: 10.1364/OL.35.001596.
A new tunable optical delay scheme based on real-time Fourier transformation and ramp-type phase modulation is proposed and experimentally demonstrated. A linearly chirped fiber Bragg grating is adopted to implement the real-time Fourier transformation, and tunable delay is realized by changing the ramp-type modulating signal's period. Experimental results agree well with the theory. The signal distorts little after the delay, and a 18 ps delay is achieved for a 2-ps-wide optical pulse.
提出并实验验证了一种基于实时傅里叶变换和斜坡型相位调制的新型可调谐光延迟方案。采用线性啁啾光纤布拉格光栅实现实时傅里叶变换，通过改变斜坡型调制信号的周期实现可调谐延迟。实验结果与理论吻合较好。延迟后信号失真较小，对于 2 ps 宽的光脉冲实现了 18 ps 的延迟。
Zotero 插件