Novel photonic broadband microwave frequency measurement based on intensity-modulated link with output microwave interference detection

Yiying Gu; Jingjing Hu; Shanfeng Li; Xiuyou Han; Meng Wang; Pengsheng Wu; Mingshan Zhao

doi:10.1117/1.OE.51.1.019001

8 February 2012 Novel photonic broadband microwave frequency measurement based on intensity-modulated link with output microwave interference detection

Yiying Gu, Jingjing Hu, Shanfeng Li, Xiuyou Han, Meng Wang, Pengsheng Wu, Mingshan Zhao

Author Affiliations +

Funded by: Fundamental Research Funds for the Central Universities, National Natural Science Foundation of China, Specialized Research Fund for the Doctoral Program of Higher Education, Natural Science Foundation of Liaoning Province

Optical Engineering, Vol. 51, Issue 1, 019001 (February 2012). https://doi.org/10.1117/1.OE.51.1.019001

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.

Citation Download Citation

Yiying Gu, Jingjing Hu, Shanfeng Li, Xiuyou Han, Meng Wang, Pengsheng Wu, and Mingshan Zhao "Novel photonic broadband microwave frequency measurement based on intensity-modulated link with output microwave interference detection," Optical Engineering 51(1), 019001 (8 February 2012). https://doi.org/10.1117/1.OE.51.1.019001

Published: 8 February 2012

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