Generation of chirped microwave signal with any central frequency based on a nonuniformly spaced finite impulse response filter

• Autorzy: Chen D. , Wang R. , Pu T. , Xiang P. , Fang T. , Zheng J. , Xiong J.

Identyfikatory

DOI

10.5277/oa160307

• Języki publikacji: EN

Abstrakty

EN

A novel optical approach to generating a chirped microwave signal by using a nonuniformly spaced finite impulse response filter is proposed and demonstrated. In this scheme, a narrowband Gaussian pulse is used as the original chirped-free signal, which is easy to be acquired. To eliminate the need of a wideband chirped-free signal, a mixer and a radio frequency signal are used to up-convert the spectrum of the original Gaussian signal. Therefore, the required frequency response can be calculated and reconstructed by a finite impulse response filter with nonuniformly spaced taps. Besides, a dual drive Mach–Zehnder modulator is used to realize single sideband modulation of the chirpedfree signal. Thus, the transfer function induced by the fiber dispersion is eliminated and the chirped microwave signal with any central frequency can be generated. In this paper, a design example of a filter with a central frequency of 10GHz is provided, and generation of the target chirped microwave signal is also demonstrated by numerical simulations.

Słowa kluczowe

EN

microwave photonics; microwave photonic filter; chirped microwave signal; dual drive Mach–Zehnder modulator

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2016
• Tom: Vol. 46, nr 3
• Strony: 399--408
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Chen D.

• Armored Force Institution of PLA, Bengbu, 233013, China
• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Wang R.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Pu T.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Xiang P.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Fang T.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Zheng J.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

autor

Xiong J.

• Optoelectronics Technology Research Center, College of Communications Engineering, PLA University of Science and Technology, Nanjing, 210007, China

Bibliografia

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• [3]MING LI, JIANPING YAO, Photonic generation of continuously tunable chirped microwave waveforms based on a temporal interferometer incorporating an optically pumped linearly chirped fiber Bragg grating, IEEE Transactions on Microwave Theory and Techniques 59(12), 2011, pp. 3531–3537.
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• [5]MING LI, CHAO WANG, WANGZHE LI, JIANPING YAO, An unbalanced temporal pulse-shaping system for chirped microwave waveform generation, IEEE Transactions on Microwave Theory and Techniques 58(11), 2010, pp. 2968–2975.
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• [14]CHAO WANG, JIANPING YAO, A nonuniformly spaced microwave photonic filter using a spatially discrete chirped FBG, IEEE Photonics Technology Letters 25(19), 2013, pp. 1889–1891.
• [15]XIAOXIAO XUE, XIAOPING ZHENG, HANYI ZHANG, BINGKUN ZHOU, Widely tunable single-bandpass microwave photonic filter employing a non-sliced broadband optical source, Optics Express 19(19), 2011, pp. 18423–18429.
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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.