中国物理B ›› 2012, Vol. 21 ›› Issue (6): 68401-068401.doi: 10.1088/1674-1056/21/6/068401
• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇 下一篇
董建绩, 罗博文, 于源, 张新亮
Dong Jian-Ji(董建绩)†, Luo Bo-Wen(罗博文), Yu Yuan(于源), and Zhang Xin-Liang(张新亮)
摘要: We demonstrate experimentally a radio frequency arbitrary waveform generator using the incoherent wavelength-to-time mapping technique. The system is implemented by amplitude modulation of a broadband optical resource whose spectrum is reshaped by a programmable optical pulse shaper and transmitted over a single mode fiber link. The shape of the generated waveform is controlled by the optical pulse shaper, and the fiber link introduces a certain group velocity delay to implement wavelength-to-time mapping. Assisted by the flexible optical pulse shaper, we obtain different shapes of optical waveforms, such as rectangle, triangle, and sawtooth waveforms. Furthermore, we also demonstrate ultra-wideband generation, such as Gaussian monocycle, doublet, and triplet waveforms, using the incoherent technique.
中图分类号: (Radiowave and microwave (including millimeter wave) technology)