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Proceedings Paper

Microwave photonic frequency downconverter based on single sideband modulation
Author(s): Jiahao Xu; Yunxin Wang; Tao Zhou; Dayong Wang; Jingnan Li; Xin Zhong; Dengcai Yang
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Paper Abstract

A microwave photonic frequency downconverter is proposed and experimentally demonstrated based on an integrated polarization division multiplexing dual-parallel Mach-Zehnder (PDM-DPMZM) modulator. The radio frequency (RF) and the local oscillator (LO) signals are feed to the modulator through two electrical 90° hybrid couplers, respectively. The carrier suppress single sideband (CS-SSB) modulation can be achieved by adjusting the DC biases of the modulator. Then an intermediate frequency (IF) signal can be obtained by beating. The microwave photonic frequency downconversion link based on PDM-DPMZM is built. The result shows that both optical carrier sideband suppression ratio and sideband suppression ratio are over 20dB, and the spurious-free dynamic range achieves 98.0 dB·Hz2/3. No extra mixing spurs interferes the interested IF signal owing to the CS-SSB modulation. Besides, the proposed method has good isolation between the RF signal and LO signal.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104641F (24 October 2017); doi: 10.1117/12.2285263
Show Author Affiliations
Jiahao Xu, Beijing Univ. of Technology (China)
Yunxin Wang, Beijing Univ. of Technology (China)
Beijing Engineering Research Ctr. (China)
Tao Zhou, Science and Technology on Electronic Information Control Lab. (China)
Dayong Wang, Beijing Univ. of Technology (China)
Beijing Engineering Research Ctr. (China)
Jingnan Li, Beijing Univ. of Technology (China)
Xin Zhong, Science and Technology on Electronic Information Control Lab. (China)
Dengcai Yang, Beijing Univ. of Technology (China)
Beijing Engineering Research Ctr. (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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