Lasers, Fiber Optics, and Communications

Tunable optoelectronic oscillator based on a dual-parallel Mach–Zehnder modulator and a phase-shifted FBG

[+] Author Affiliations
Wei Wang, Cheng-Xin Li, Rui Dai, Lian-Qun Xie, Ke Wu, Ming-Chun Yin, Xu Chen, Bo Zhao

Information and Communication Company, Sichuan Electric Power Corporation, State Grid Corporation of China, No. 366, West Shuxiu Road, Hi-Tech Zone, Chengdu 610041, China

Opt. Eng. 55(12), 126113 (Dec 28, 2016). doi:10.1117/1.OE.55.12.126113
History: Received September 18, 2016; Accepted December 6, 2016
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Abstract.  This paper proposes and demonstrates an optoelectronic oscillator (OEO) for the generation of a microwave signal with a wide frequency tuning range. In the proposed OEO, a microwave photonic filter (MPF) is formed by a joint operation of a dual-parallel Mach–Zehnder (DP-MZM) and a phase-shifted fiber Bragg grating (PS-FBG). The DP-MZM is employed to generate a modulated signal which includes an optical carrier and odd-order sidebands. The PS-FBG is used as an optical notch filter to remove the +1st sideband. Since the central frequency of the MPF can be shifted by changing the optical wavelength, the frequency tunability of the OEO is then realized by incorporating such an all-optical MPF into an optical domain dual-loop OEO without any electronic microwave filters. As a result, a microwave signal with a frequency-tuning range from 2.483 to 12.571 GHz is generated with its performance being evaluated.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Wei Wang ; Cheng-Xin Li ; Rui Dai ; Lian-Qun Xie ; Ke Wu, et al.
"Tunable optoelectronic oscillator based on a dual-parallel Mach–Zehnder modulator and a phase-shifted FBG", Opt. Eng. 55(12), 126113 (Dec 28, 2016). ; http://dx.doi.org/10.1117/1.OE.55.12.126113


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