Optical Design and Engineering

Tunable optoelectronic oscillator incorporating an all-optical microwave photonic filter

[+] Author Affiliations
Cheng-Xin Li

University of Electronic Science and Technology of China, Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), School of Communication and Information Engineering, Qingshuihe Campus No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu 611731, China

Fu-Shen Chen

University of Electronic Science and Technology of China, Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), School of Communication and Information Engineering, Qingshuihe Campus No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu 611731, China

Jia-Hong Zhang

University of Electronic Science and Technology of China, Key Laboratory of Optical Fiber Sensing and Communications (Education Ministry of China), School of Communication and Information Engineering, Qingshuihe Campus No. 2006, Xiyuan Avenue, West Hi-Tech Zone, Chengdu 611731, China

Opt. Eng. 54(1), 015106 (Jan 23, 2015). doi:10.1117/1.OE.54.1.015106
History: Received September 25, 2014; Accepted December 29, 2014
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Abstract.  A tunable optoelectronic oscillator (OEO), which employs an all-optical microwave photonic filter (MPF) consisting of two laser sources (LD1 and LD2), an optical coupler (OC, 50:50), a Mach-Zehnder modulator (MZM), and a chirped fiber Bragg grating, is proposed. Because the central frequency of the all-optical MPF can be shifted by changing the wavelength spacing between the two laser sources, the frequency tunability of the OEO can be realized by incorporating such an all-optical MPF into an optical domain dual-loop OEO without any electronic microwave filters. A detailed theoretical analysis is presented and the results are confirmed by an experiment. A microwave signal with a frequency-tuning range from 4.057 to 8.595 GHz is generated. The phase noise, the long-term stability, and the side-mode suppression performance of the generated microwave signal are also investigated.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Cheng-Xin Li ; Fu-Shen Chen and Jia-Hong Zhang
"Tunable optoelectronic oscillator incorporating an all-optical microwave photonic filter", Opt. Eng. 54(1), 015106 (Jan 23, 2015). ; http://dx.doi.org/10.1117/1.OE.54.1.015106


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