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Photonic multi-shape UWB pulse generation using a semiconductor optical amplifier-based nonlinear optical loop mirror |
Luo Bo-Wen (罗博文), Dong Jian-Ji (董建绩), Yu Yuan (于源), Yang Ting (杨婷), 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 propose and demonstrate a scheme to implement photonic multi-shape ultra-wideband (UWB) signal generation using a semiconductor optical amplifier (SOA) based nonlinear optical loop mirror (NOLM). By employing the cross phase modulation (XPM) effect, cross gain modulation (XGM), or both, multi-shape UWB waveforms are generated including monocycle, doublet, triplet, and quadruplet pulses. Both the shapes and polarities of the generated pulses are flexible to adjust, which may be very useful in UWB pulse shape modulation and pulse polarity modulation.
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Received: 17 June 2012
Revised: 02 August 2012
Accepted manuscript online:
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PACS:
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32.30.Bv
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(Radio-frequency, microwave, and infrared spectra)
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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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Fund: Project supported by the National Basic Research Program of China (Grant No. 2011CB301704); the National Natural Science Foundation for Distinguished Young Scholars (Grant No. 61125501); and the National Natural Science Foundation of China (Grant Nos. 60901006 and 11174096). |
Corresponding Authors:
Dong Jian-Ji
E-mail: jjdong@mail.hust.edu.cn
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Cite this article:
Luo Bo-Wen (罗博文), Dong Jian-Ji (董建绩), Yu Yuan (于源), Yang Ting (杨婷), Zhang Xin-Liang (张新亮 ) Photonic multi-shape UWB pulse generation using a semiconductor optical amplifier-based nonlinear optical loop mirror 2013 Chin. Phys. B 22 023201
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