Lasers, Fiber Optics, and Communications

Dual-loop optoelectronic oscillator based on a compact balanced detection scheme

[+] Author Affiliations
Feng Fan, Jingjing Hu, Wenwu Zhu, Yiying Gu, Xiuyou Han, Mingshan Zhao

Dalian University of Technology, Photonic Research Center, School of Physics and Optoelectronic Engineering, Dalian, China

Opt. Eng. 56(2), 026107 (Feb 07, 2017). doi:10.1117/1.OE.56.2.026107
History: Received October 20, 2016; Accepted January 17, 2017
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Abstract.  A compact dual-loop optoelectronic oscillator (OEO) employing a dual-output Mach–Zehnder intensity modulator (DOMZM) and a balanced photodetector (BPD) is theoretically analyzed and experimentally demonstrated. The fundamental idea of the scheme is based on double loops formed by two complementary output ports of DOMZM and two input ports of BPD, which could be naturally combined without any additional optical coupler or polarization beam splitter devices. This simple structure makes it possible to enhance side-mode suppression ratio (SMSR) and reduce phase noise of the OEO. Compared with the traditional dual-loop OEO (SO-OEO) based on single-output Mach–Zehnder modulator (MZM), optical coupler, and BPD, the advantages of our proposed dual-loop OEO (DO-OEO) with DOMZM and BPD are presented. Experimental results show that a 16-GHz single-mode OEO is obtained with measured SMSR of 72 dB and phase noise of 133.2  dBc/Hz at 10-kHz frequency offset.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Feng Fan ; Jingjing Hu ; Wenwu Zhu ; Yiying Gu ; Xiuyou Han, et al.
"Dual-loop optoelectronic oscillator based on a compact balanced detection scheme", Opt. Eng. 56(2), 026107 (Feb 07, 2017). ; http://dx.doi.org/10.1117/1.OE.56.2.026107


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