Center for Information Photonics & Communications, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.
Opt Lett. 2012 Dec 15;37(24):5052-4. doi: 10.1364/OL.37.005052.
A photonic approach to generate impulse ultrawideband (UWB) signals with switchable shapes and polarities based on the frequency-to-time mapping technique is proposed and demonstrated. UWB monocycle, doublet, and triplet signals with two polarities can be obtained by adjusting the switchable spectrum shaper.
提出并演示了一种基于频域到时域映射技术的光脉冲超宽带(UWB)信号的可切换形状和极性产生方法。通过调节可切换频谱整形器,可得到具有两种极性的 UWB 单周期、双周期和三周期信号。