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Photonic generation of arbitrary waveforms based on incoherent wavelength-to-time mapping |
Dong Jian-Ji(董建绩)†, Luo Bo-Wen(罗博文), Yu Yuan(于源), and Zhang Xin-Liang(张新亮) |
Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering,Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract 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.
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Received: 29 August 2011
Revised: 29 November 2011
Accepted manuscript online:
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PACS:
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84.40.-x
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(Radiowave and microwave (including millimeter wave) technology)
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42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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47.27.De
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(Coherent structures)
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Fund: 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), and the Fundamental Research Funds for the Central Universities of China (Grant No. 2010QN033). |
Corresponding Authors:
Dong Jian-Ji
E-mail: jjdong@mail.hust.edu.cn
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Cite this article:
Dong Jian-Ji(董建绩), Luo Bo-Wen(罗博文), Yu Yuan(于源), and Zhang Xin-Liang(张新亮) Photonic generation of arbitrary waveforms based on incoherent wavelength-to-time mapping 2012 Chin. Phys. B 21 068401
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