Photonic generation of arbitrary waveforms based on incoherent wavelength-to-time mapping  

作　　者：董建绩 罗博文 于源 张新亮 

机构地区：[1]Wuhan National Laboratory for Optoelectronics,School of Optoelectronic Science and Engineering,Huazhong University of Science and Technology

出　　处：《Chinese Physics B》2012年第6期538-542,共5页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China (Grant No. 2011CB301704);the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096);the Fundamental Research Funds for the Central Universities of China (Grant No. 2010QN033)

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.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.

关 键 词：arbitrary waveform generation ULTRA-WIDEBAND wavelength-to-time mapping incoherenttechnique arbitrary waveform generation ULTRA-WIDEBAND wavelength-to-time mapping incoherent technique 

分 类 号：TN925[电子电信—通信与信息系统]