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Optical Engineering

Novel photonic broadband microwave frequency measurement based on intensity-modulated link with output microwave interference detection
Author(s): Yiying Gu; Jingjing Hu; Shanfeng Li; Xiuyou Han; Meng Wang; Pengsheng Wu; Mingshan Zhao
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Paper Abstract

A novel photonic approach for measuring microwave frequency over a wide bandwidth, based on intensity-modulated link with output microwave interference detection, is proposed. In this simple measurement system, a tunable laser and a fixed-wavelength laser are used with a single-mode fiber as the dispersive medium. By scanning the wavelength of a tunable laser, the frequency of the modulated microwave signal can be obtained directly through analyzing the interference intensity of the microwave signal at the output of the photodetector. The proposed approach is demonstrated experimentally by obtaining the unknown microwave frequency in the range of 1 to 20 GHz with a measurement accuracy of several tens of MHz.

Paper Details

Date Published: 8 February 2012
PDF: 5 pages
Opt. Eng. 51(1) 019001 doi: 10.1117/1.OE.51.1.019001
Published in: Optical Engineering Volume 51, Issue 1
Show Author Affiliations
Yiying Gu, Dalian Univ. of Technology (China)
Jingjing Hu, Dalian Univ. of Technology (China)
Shanfeng Li, Dalian Univ. of Technology (China)
Xiuyou Han, Dalian Univ. of Technology (China)
Meng Wang, Dalian Univ. of Technology (China)
Pengsheng Wu, Dalian Univ. of Technology (China)
Mingshan Zhao, Dalian Univ. of Technology (China)

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